Commit 699291a8 authored by sergefp@mysql.com's avatar sergefp@mysql.com

BUG#14940 "MySQL choose wrong index", v.2

- Make the range-et-al optimizer produce E(#table records after table 
                                           condition is applied),
- Make the join optimizer use this value,
- Add "filtered" column to EXPLAIN EXTENDED to show 
  fraction of records left after table condition is applied
- Adjust test results, add comments
parent 1459784a
......@@ -233,8 +233,8 @@ fid AsText(Envelope(g))
120 POLYGON((0 0,10 0,10 10,0 10,0 0))
121 POLYGON((3 6,44 6,44 9,3 9,3 6))
explain extended select Dimension(g), GeometryType(g), IsEmpty(g), AsText(Envelope(g)) from gis_geometry;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE gis_geometry ALL NULL NULL NULL NULL 21
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE gis_geometry ALL NULL NULL NULL NULL 21 100.00
Warnings:
Note 1003 select dimension(`test`.`gis_geometry`.`g`) AS `Dimension(g)`,geometrytype(`test`.`gis_geometry`.`g`) AS `GeometryType(g)`,isempty(`test`.`gis_geometry`.`g`) AS `IsEmpty(g)`,astext(envelope(`test`.`gis_geometry`.`g`)) AS `AsText(Envelope(g))` from `test`.`gis_geometry`
SELECT fid, X(g) FROM gis_point ORDER by fid;
......@@ -250,8 +250,8 @@ fid Y(g)
103 20
104 20
explain extended select X(g),Y(g) FROM gis_point;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE gis_point ALL NULL NULL NULL NULL 4
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE gis_point ALL NULL NULL NULL NULL 4 100.00
Warnings:
Note 1003 select x(`test`.`gis_point`.`g`) AS `X(g)`,y(`test`.`gis_point`.`g`) AS `Y(g)` from `test`.`gis_point`
SELECT fid, AsText(StartPoint(g)) FROM gis_line ORDER by fid;
......@@ -285,8 +285,8 @@ fid IsClosed(g)
106 1
107 0
explain extended select AsText(StartPoint(g)),AsText(EndPoint(g)),GLength(g),NumPoints(g),AsText(PointN(g, 2)),IsClosed(g) FROM gis_line;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE gis_line ALL NULL NULL NULL NULL 3
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE gis_line ALL NULL NULL NULL NULL 3 100.00
Warnings:
Note 1003 select astext(startpoint(`test`.`gis_line`.`g`)) AS `AsText(StartPoint(g))`,astext(endpoint(`test`.`gis_line`.`g`)) AS `AsText(EndPoint(g))`,glength(`test`.`gis_line`.`g`) AS `GLength(g)`,numpoints(`test`.`gis_line`.`g`) AS `NumPoints(g)`,astext(pointn(`test`.`gis_line`.`g`,2)) AS `AsText(PointN(g, 2))`,isclosed(`test`.`gis_line`.`g`) AS `IsClosed(g)` from `test`.`gis_line`
SELECT fid, AsText(Centroid(g)) FROM gis_polygon ORDER by fid;
......@@ -315,8 +315,8 @@ fid AsText(InteriorRingN(g, 1))
109 LINESTRING(10 10,20 10,20 20,10 20,10 10)
110 NULL
explain extended select AsText(Centroid(g)),Area(g),AsText(ExteriorRing(g)),NumInteriorRings(g),AsText(InteriorRingN(g, 1)) FROM gis_polygon;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE gis_polygon ALL NULL NULL NULL NULL 3
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE gis_polygon ALL NULL NULL NULL NULL 3 100.00
Warnings:
Note 1003 select astext(centroid(`test`.`gis_polygon`.`g`)) AS `AsText(Centroid(g))`,area(`test`.`gis_polygon`.`g`) AS `Area(g)`,astext(exteriorring(`test`.`gis_polygon`.`g`)) AS `AsText(ExteriorRing(g))`,numinteriorrings(`test`.`gis_polygon`.`g`) AS `NumInteriorRings(g)`,astext(interiorringn(`test`.`gis_polygon`.`g`,1)) AS `AsText(InteriorRingN(g, 1))` from `test`.`gis_polygon`
SELECT fid, IsClosed(g) FROM gis_multi_line ORDER by fid;
......@@ -354,8 +354,8 @@ fid NumGeometries(g)
120 2
121 2
explain extended SELECT fid, NumGeometries(g) from gis_multi_point;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE gis_multi_point ALL NULL NULL NULL NULL 3
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE gis_multi_point ALL NULL NULL NULL NULL 3 100.00
Warnings:
Note 1003 select `test`.`gis_multi_point`.`fid` AS `fid`,numgeometries(`test`.`gis_multi_point`.`g`) AS `NumGeometries(g)` from `test`.`gis_multi_point`
SELECT fid, AsText(GeometryN(g, 2)) from gis_multi_point ORDER by fid;
......@@ -382,8 +382,8 @@ fid AsText(GeometryN(g, 1))
120 POINT(0 0)
121 POINT(44 6)
explain extended SELECT fid, AsText(GeometryN(g, 2)) from gis_multi_point;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE gis_multi_point ALL NULL NULL NULL NULL 3
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE gis_multi_point ALL NULL NULL NULL NULL 3 100.00
Warnings:
Note 1003 select `test`.`gis_multi_point`.`fid` AS `fid`,astext(geometryn(`test`.`gis_multi_point`.`g`,2)) AS `AsText(GeometryN(g, 2))` from `test`.`gis_multi_point`
SELECT g1.fid as first, g2.fid as second,
......@@ -401,9 +401,9 @@ Within(g1.g, g2.g) as w, Contains(g1.g, g2.g) as c, Overlaps(g1.g, g2.g) as o,
Equals(g1.g, g2.g) as e, Disjoint(g1.g, g2.g) as d, Touches(g1.g, g2.g) as t,
Intersects(g1.g, g2.g) as i, Crosses(g1.g, g2.g) as r
FROM gis_geometrycollection g1, gis_geometrycollection g2 ORDER BY first, second;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE g1 ALL NULL NULL NULL NULL 2 Using temporary; Using filesort
1 SIMPLE g2 ALL NULL NULL NULL NULL 2
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE g1 ALL NULL NULL NULL NULL 2 100.00 Using temporary; Using filesort
1 SIMPLE g2 ALL NULL NULL NULL NULL 2 100.00
Warnings:
Note 1003 select `test`.`g1`.`fid` AS `first`,`test`.`g2`.`fid` AS `second`,within(`test`.`g1`.`g`,`test`.`g2`.`g`) AS `w`,contains(`test`.`g1`.`g`,`test`.`g2`.`g`) AS `c`,overlaps(`test`.`g1`.`g`,`test`.`g2`.`g`) AS `o`,equals(`test`.`g1`.`g`,`test`.`g2`.`g`) AS `e`,disjoint(`test`.`g1`.`g`,`test`.`g2`.`g`) AS `d`,touches(`test`.`g1`.`g`,`test`.`g2`.`g`) AS `t`,intersects(`test`.`g1`.`g`,`test`.`g2`.`g`) AS `i`,crosses(`test`.`g1`.`g`,`test`.`g2`.`g`) AS `r` from `test`.`gis_geometrycollection` `g1` join `test`.`gis_geometrycollection` `g2` order by `test`.`g1`.`fid`,`test`.`g2`.`fid`
DROP TABLE gis_point, gis_line, gis_polygon, gis_multi_point, gis_multi_line, gis_multi_polygon, gis_geometrycollection, gis_geometry;
......
......@@ -140,8 +140,8 @@ select last_insert_id();
last_insert_id()
255
explain extended select last_insert_id();
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL No tables used
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
Warnings:
Note 1003 select sql_no_cache last_insert_id() AS `last_insert_id()`
insert into t1 set i = 254;
......
......@@ -233,8 +233,8 @@ fid AsText(Envelope(g))
120 POLYGON((0 0,10 0,10 10,0 10,0 0))
121 POLYGON((3 6,44 6,44 9,3 9,3 6))
explain extended select Dimension(g), GeometryType(g), IsEmpty(g), AsText(Envelope(g)) from gis_geometry;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE gis_geometry ALL NULL NULL NULL NULL 21
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE gis_geometry ALL NULL NULL NULL NULL 21 100.00
Warnings:
Note 1003 select dimension(`test`.`gis_geometry`.`g`) AS `Dimension(g)`,geometrytype(`test`.`gis_geometry`.`g`) AS `GeometryType(g)`,isempty(`test`.`gis_geometry`.`g`) AS `IsEmpty(g)`,astext(envelope(`test`.`gis_geometry`.`g`)) AS `AsText(Envelope(g))` from `test`.`gis_geometry`
SELECT fid, X(g) FROM gis_point ORDER by fid;
......@@ -250,8 +250,8 @@ fid Y(g)
103 20
104 20
explain extended select X(g),Y(g) FROM gis_point;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE gis_point ALL NULL NULL NULL NULL 4
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE gis_point ALL NULL NULL NULL NULL 4 100.00
Warnings:
Note 1003 select x(`test`.`gis_point`.`g`) AS `X(g)`,y(`test`.`gis_point`.`g`) AS `Y(g)` from `test`.`gis_point`
SELECT fid, AsText(StartPoint(g)) FROM gis_line ORDER by fid;
......@@ -285,8 +285,8 @@ fid IsClosed(g)
106 1
107 0
explain extended select AsText(StartPoint(g)),AsText(EndPoint(g)),GLength(g),NumPoints(g),AsText(PointN(g, 2)),IsClosed(g) FROM gis_line;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE gis_line ALL NULL NULL NULL NULL 3
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE gis_line ALL NULL NULL NULL NULL 3 100.00
Warnings:
Note 1003 select astext(startpoint(`test`.`gis_line`.`g`)) AS `AsText(StartPoint(g))`,astext(endpoint(`test`.`gis_line`.`g`)) AS `AsText(EndPoint(g))`,glength(`test`.`gis_line`.`g`) AS `GLength(g)`,numpoints(`test`.`gis_line`.`g`) AS `NumPoints(g)`,astext(pointn(`test`.`gis_line`.`g`,2)) AS `AsText(PointN(g, 2))`,isclosed(`test`.`gis_line`.`g`) AS `IsClosed(g)` from `test`.`gis_line`
SELECT fid, AsText(Centroid(g)) FROM gis_polygon ORDER by fid;
......@@ -315,8 +315,8 @@ fid AsText(InteriorRingN(g, 1))
109 LINESTRING(10 10,20 10,20 20,10 20,10 10)
110 NULL
explain extended select AsText(Centroid(g)),Area(g),AsText(ExteriorRing(g)),NumInteriorRings(g),AsText(InteriorRingN(g, 1)) FROM gis_polygon;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE gis_polygon ALL NULL NULL NULL NULL 3
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE gis_polygon ALL NULL NULL NULL NULL 3 100.00
Warnings:
Note 1003 select astext(centroid(`test`.`gis_polygon`.`g`)) AS `AsText(Centroid(g))`,area(`test`.`gis_polygon`.`g`) AS `Area(g)`,astext(exteriorring(`test`.`gis_polygon`.`g`)) AS `AsText(ExteriorRing(g))`,numinteriorrings(`test`.`gis_polygon`.`g`) AS `NumInteriorRings(g)`,astext(interiorringn(`test`.`gis_polygon`.`g`,1)) AS `AsText(InteriorRingN(g, 1))` from `test`.`gis_polygon`
SELECT fid, IsClosed(g) FROM gis_multi_line ORDER by fid;
......@@ -354,8 +354,8 @@ fid NumGeometries(g)
120 2
121 2
explain extended SELECT fid, NumGeometries(g) from gis_multi_point;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE gis_multi_point ALL NULL NULL NULL NULL 3
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE gis_multi_point ALL NULL NULL NULL NULL 3 100.00
Warnings:
Note 1003 select `test`.`gis_multi_point`.`fid` AS `fid`,numgeometries(`test`.`gis_multi_point`.`g`) AS `NumGeometries(g)` from `test`.`gis_multi_point`
SELECT fid, AsText(GeometryN(g, 2)) from gis_multi_point ORDER by fid;
......@@ -382,8 +382,8 @@ fid AsText(GeometryN(g, 1))
120 POINT(0 0)
121 POINT(44 6)
explain extended SELECT fid, AsText(GeometryN(g, 2)) from gis_multi_point;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE gis_multi_point ALL NULL NULL NULL NULL 3
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE gis_multi_point ALL NULL NULL NULL NULL 3 100.00
Warnings:
Note 1003 select `test`.`gis_multi_point`.`fid` AS `fid`,astext(geometryn(`test`.`gis_multi_point`.`g`,2)) AS `AsText(GeometryN(g, 2))` from `test`.`gis_multi_point`
SELECT g1.fid as first, g2.fid as second,
......@@ -401,9 +401,9 @@ Within(g1.g, g2.g) as w, Contains(g1.g, g2.g) as c, Overlaps(g1.g, g2.g) as o,
Equals(g1.g, g2.g) as e, Disjoint(g1.g, g2.g) as d, Touches(g1.g, g2.g) as t,
Intersects(g1.g, g2.g) as i, Crosses(g1.g, g2.g) as r
FROM gis_geometrycollection g1, gis_geometrycollection g2 ORDER BY first, second;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE g1 ALL NULL NULL NULL NULL 2 Using temporary; Using filesort
1 SIMPLE g2 ALL NULL NULL NULL NULL 2
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE g1 ALL NULL NULL NULL NULL 2 100.00 Using temporary; Using filesort
1 SIMPLE g2 ALL NULL NULL NULL NULL 2 100.00
Warnings:
Note 1003 select `test`.`g1`.`fid` AS `first`,`test`.`g2`.`fid` AS `second`,within(`test`.`g1`.`g`,`test`.`g2`.`g`) AS `w`,contains(`test`.`g1`.`g`,`test`.`g2`.`g`) AS `c`,overlaps(`test`.`g1`.`g`,`test`.`g2`.`g`) AS `o`,equals(`test`.`g1`.`g`,`test`.`g2`.`g`) AS `e`,disjoint(`test`.`g1`.`g`,`test`.`g2`.`g`) AS `d`,touches(`test`.`g1`.`g`,`test`.`g2`.`g`) AS `t`,intersects(`test`.`g1`.`g`,`test`.`g2`.`g`) AS `i`,crosses(`test`.`g1`.`g`,`test`.`g2`.`g`) AS `r` from `test`.`gis_geometrycollection` `g1` join `test`.`gis_geometrycollection` `g2` order by `test`.`g1`.`fid`,`test`.`g2`.`fid`
DROP TABLE gis_point, gis_line, gis_polygon, gis_multi_point, gis_multi_line, gis_multi_polygon, gis_geometrycollection, gis_geometry;
......
......@@ -4,8 +4,8 @@ select count(distinct n) from t1;
count(distinct n)
100
explain extended select count(distinct n) from t1;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 index NULL n 4 NULL 200 Using index
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t1 index NULL n 4 NULL 200 100.00 Using index
Warnings:
Note 1003 select count(distinct `test`.`t1`.`n`) AS `count(distinct n)` from `test`.`t1`
drop table t1;
......@@ -70,8 +70,8 @@ a b
Only MyISAM tables support collections
Full-text indexes are called collections
explain extended select * from t1 where MATCH(a,b) AGAINST ("collections");
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 fulltext a a 0 1 Using where
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t1 fulltext a a 0 1 100.00 Using where
Warnings:
Note 1003 select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from `test`.`t1` where (match `test`.`t1`.`a`,`test`.`t1`.`b` against (_latin1'collections'))
select * from t1 where MATCH(a,b) AGAINST ("indexes");
......
......@@ -24,8 +24,8 @@ select CASE 1 when 1 then "one" WHEN 2 then "two" ELSE "more" END;
CASE 1 when 1 then "one" WHEN 2 then "two" ELSE "more" END
one
explain extended select CASE 1 when 1 then "one" WHEN 2 then "two" ELSE "more" END;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL No tables used
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
Warnings:
Note 1003 select (case 1 when 1 then _latin1'one' when 2 then _latin1'two' else _latin1'more' end) AS `CASE 1 when 1 then "one" WHEN 2 then "two" ELSE "more" END`
select CASE 2.0 when 1 then "one" WHEN 2.0 then "two" ELSE "more" END;
......@@ -63,8 +63,8 @@ fcase count(*)
2 1
3 1
explain extended select case a when 1 then 2 when 2 then 3 else 0 end as fcase, count(*) from t1 group by fcase;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ALL NULL NULL NULL NULL 4 Using temporary; Using filesort
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t1 ALL NULL NULL NULL NULL 4 100.00 Using temporary; Using filesort
Warnings:
Note 1003 select (case `test`.`t1`.`a` when 1 then 2 when 2 then 3 else 0 end) AS `fcase`,count(0) AS `count(*)` from `test`.`t1` group by (case `test`.`t1`.`a` when 1 then 2 when 2 then 3 else 0 end)
select case a when 1 then "one" when 2 then "two" else "nothing" end as fcase, count(*) from t1 group by fcase;
......@@ -144,8 +144,8 @@ explain extended SELECT
COALESCE(1), COALESCE(1.0),COALESCE('a'),
COALESCE(1,1.0), COALESCE(1,'1'),COALESCE(1.1,'1'),
COALESCE('a' COLLATE latin1_bin,'b');
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL No tables used
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
Warnings:
Note 1003 select coalesce(1) AS `COALESCE(1)`,coalesce(1.0) AS `COALESCE(1.0)`,coalesce(_latin1'a') AS `COALESCE('a')`,coalesce(1,1.0) AS `COALESCE(1,1.0)`,coalesce(1,_latin1'1') AS `COALESCE(1,'1')`,coalesce(1.1,_latin1'1') AS `COALESCE(1.1,'1')`,coalesce((_latin1'a' collate latin1_bin),_latin1'b') AS `COALESCE('a' COLLATE latin1_bin,'b')`
SHOW CREATE TABLE t1;
......
......@@ -19,8 +19,8 @@ select ~5, cast(~5 as signed);
~5 cast(~5 as signed)
18446744073709551610 -6
explain extended select ~5, cast(~5 as signed);
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL No tables used
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
Warnings:
Note 1003 select ~(5) AS `~5`,cast(~(5) as signed) AS `cast(~5 as signed)`
select cast(5 as unsigned) -6.0;
......
......@@ -1505,8 +1505,8 @@ select count(*),min(fld4),max(fld4),sum(fld1),avg(fld1),std(fld1),variance(fld1)
count(*) min(fld4) max(fld4) sum(fld1) avg(fld1) std(fld1) variance(fld1)
70 absentee vest 17788966 254128.0857 3272.5940 10709871.3069
explain extended select count(*),min(fld4),max(fld4),sum(fld1),avg(fld1),std(fld1),variance(fld1) from t2 where companynr = 34 and fld4<>"";
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t2 ALL NULL NULL NULL NULL 1199 Using where
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t2 ALL NULL NULL NULL NULL 1199 100.00 Using where
Warnings:
Note 1003 select count(0) AS `count(*)`,min(`test`.`t2`.`fld4`) AS `min(fld4)`,max(`test`.`t2`.`fld4`) AS `max(fld4)`,sum(`test`.`t2`.`fld1`) AS `sum(fld1)`,avg(`test`.`t2`.`fld1`) AS `avg(fld1)`,std(`test`.`t2`.`fld1`) AS `std(fld1)`,variance(`test`.`t2`.`fld1`) AS `variance(fld1)` from `test`.`t2` where ((`test`.`t2`.`companynr` = 34) and (`test`.`t2`.`fld4` <> _latin1''))
select companynr,count(*),min(fld4),max(fld4),sum(fld1),avg(fld1),std(fld1),variance(fld1) from t2 group by companynr limit 3;
......
......@@ -516,8 +516,8 @@ SELECT charset('a'),collation('a'),coercibility('a'),'a'='A';
charset('a') collation('a') coercibility('a') 'a'='A'
latin1 latin1_swedish_ci 4 1
explain extended SELECT charset('a'),collation('a'),coercibility('a'),'a'='A';
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL No tables used
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
Warnings:
Note 1003 select charset(_latin1'a') AS `charset('a')`,collation(_latin1'a') AS `collation('a')`,coercibility(_latin1'a') AS `coercibility('a')`,(_latin1'a' = _latin1'A') AS `'a'='A'`
SET CHARACTER SET koi8r;
......
drop table if exists t1;
SHOW COLLATION LIKE 'cp1250_czech_cs';
Collation Charset Id Default Compiled Sortlen
cp1250_czech_cs cp1250 34 Yes 2
......
......@@ -434,8 +434,8 @@ NULL
Warnings:
Error 1411 Incorrect datetime value: '15-01-2001 12:59:59' for function str_to_time
explain extended select makedate(1997,1), addtime("31.12.97 11.59.59.999999 PM", "1 1.1.1.000002"),subtime("31.12.97 11.59.59.999999 PM", "1 1.1.1.000002"),timediff("01.01.97 11:59:59.000001 PM","31.12.95 11:59:59.000002 PM"),cast(str_to_date("15-01-2001 12:59:59", "%d-%m-%Y %H:%i:%S") as TIME), maketime(23,11,12),microsecond("1997-12-31 23:59:59.000001");
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL No tables used
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
Warnings:
Note 1003 select makedate(1997,1) AS `makedate(1997,1)`,addtime(_latin1'31.12.97 11.59.59.999999 PM',_latin1'1 1.1.1.000002') AS `addtime("31.12.97 11.59.59.999999 PM", "1 1.1.1.000002")`,subtime(_latin1'31.12.97 11.59.59.999999 PM',_latin1'1 1.1.1.000002') AS `subtime("31.12.97 11.59.59.999999 PM", "1 1.1.1.000002")`,timediff(_latin1'01.01.97 11:59:59.000001 PM',_latin1'31.12.95 11:59:59.000002 PM') AS `timediff("01.01.97 11:59:59.000001 PM","31.12.95 11:59:59.000002 PM")`,cast(str_to_date(_latin1'15-01-2001 12:59:59',_latin1'%d-%m-%Y %H:%i:%S') as time) AS `cast(str_to_date("15-01-2001 12:59:59", "%d-%m-%Y %H:%i:%S") as TIME)`,maketime(23,11,12) AS `maketime(23,11,12)`,microsecond(_latin1'1997-12-31 23:59:59.000001') AS `microsecond("1997-12-31 23:59:59.000001")`
create table t1 (d date);
......
......@@ -175,7 +175,7 @@ explain SELECT distinct t3.a FROM t3,t2,t1 WHERE t3.a=t1.b AND t1.a=t2.a;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ALL PRIMARY NULL NULL NULL 4 Using temporary
1 SIMPLE t3 ref a a 5 test.t1.b 2 Using where; Using index
1 SIMPLE t2 index a a 4 NULL 4 Using where; Using index; Distinct
1 SIMPLE t2 index a a 4 NULL 5 Using where; Using index; Distinct
SELECT distinct t3.a FROM t3,t2,t1 WHERE t3.a=t1.b AND t1.a=t2.a;
a
1
......@@ -212,7 +212,7 @@ id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 index NULL PRIMARY 4 NULL 4 Using index
explain SELECT distinct a from t3 order by a desc limit 2;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t3 index NULL a 5 NULL 10 Using index
1 SIMPLE t3 index NULL a 5 NULL 204 Using index
explain SELECT distinct a,b from t3 order by a+1;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t3 ALL NULL NULL NULL NULL 204 Using temporary; Using filesort
......
......@@ -14,8 +14,8 @@ a b
Only MyISAM tables support collections
Full-text indexes are called collections
explain extended select * from t1 where MATCH(a,b) AGAINST ("collections");
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 fulltext a a 0 1 Using where
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t1 fulltext a a 0 1 100.00 Using where
Warnings:
Note 1003 select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from `test`.`t1` where (match `test`.`t1`.`a`,`test`.`t1`.`b` against (_latin1'collections'))
select * from t1 where MATCH(a,b) AGAINST ("indexes");
......@@ -84,8 +84,8 @@ select * from t1 where MATCH(a,b) AGAINST("support -collections" IN BOOLEAN MODE
a b
MySQL has now support for full-text search
explain extended select * from t1 where MATCH(a,b) AGAINST("support -collections" IN BOOLEAN MODE);
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 fulltext a a 0 1 Using where
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t1 fulltext a a 0 1 100.00 Using where
Warnings:
Note 1003 select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from `test`.`t1` where (match `test`.`t1`.`a`,`test`.`t1`.`b` against (_latin1'support -collections' in boolean mode))
select * from t1 where MATCH(a,b) AGAINST("support collections" IN BOOLEAN MODE);
......
......@@ -8,16 +8,16 @@ select uncompress(compress(@test_compress_string));
uncompress(compress(@test_compress_string))
string for test compress function aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
explain extended select uncompress(compress(@test_compress_string));
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL No tables used
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
Warnings:
Note 1003 select sql_no_cache uncompress(compress((@test_compress_string))) AS `uncompress(compress(@test_compress_string))`
select uncompressed_length(compress(@test_compress_string))=length(@test_compress_string);
uncompressed_length(compress(@test_compress_string))=length(@test_compress_string)
1
explain extended select uncompressed_length(compress(@test_compress_string))=length(@test_compress_string);
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL No tables used
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
Warnings:
Note 1003 select sql_no_cache (uncompressed_length(compress((@test_compress_string))) = length((@test_compress_string))) AS `uncompressed_length(compress(@test_compress_string))=length(@test_compress_string)`
select uncompressed_length(compress(@test_compress_string));
......
......@@ -88,8 +88,8 @@ select old_password(' i d k f a ');
old_password(' i d k f a ')
5c078dc54ca0fcca
explain extended select password('idkfa '), old_password('idkfa');
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL No tables used
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
Warnings:
Note 1003 select password(_latin1'idkfa ') AS `password('idkfa ')`,old_password(_latin1'idkfa') AS `old_password('idkfa')`
select encrypt('1234','_.');
......
......@@ -5,8 +5,8 @@ select default(str), default(strnull), default(intg), default(rel) from t1;
default(str) default(strnull) default(intg) default(rel)
def NULL 10 3.14
explain extended select default(str), default(strnull), default(intg), default(rel) from t1;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 system NULL NULL NULL NULL 1
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t1 system NULL NULL NULL NULL 1 100.00
Warnings:
Note 1003 select default(`test`.`t1`.`str`) AS `default(str)`,default(`test`.`t1`.`strnull`) AS `default(strnull)`,default(`test`.`t1`.`intg`) AS `default(intg)`,default(`test`.`t1`.`rel`) AS `default(rel)` from `test`.`t1`
select * from t1 where str <> default(str);
......
......@@ -179,7 +179,7 @@ NULL
Warnings:
Error 1108 Incorrect parameters to procedure 'des_decrypt'
explain extended select des_decrypt(des_encrypt("hello",4),'password2'), des_decrypt(des_encrypt("hello","hidden"));
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL No tables used
id select_type table type possible_keys key key_len ref in_rows rows Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
Warnings:
Note 1003 select des_decrypt(des_encrypt(_latin1'hello',4),_latin1'password2') AS `des_decrypt(des_encrypt("hello",4),'password2')`,des_decrypt(des_encrypt(_latin1'hello',_latin1'hidden')) AS `des_decrypt(des_encrypt("hello","hidden"))`
......@@ -15,8 +15,8 @@ grp group_concat(c)
2 b,c
3 E,C,D,d,d,D
explain extended select grp,group_concat(c) from t1 group by grp;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ALL NULL NULL NULL NULL 9 Using filesort
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t1 ALL NULL NULL NULL NULL 9 100.00 Using filesort
Warnings:
Note 1003 select `test`.`t1`.`grp` AS `grp`,group_concat(`test`.`t1`.`c` separator ',') AS `group_concat(c)` from `test`.`t1` group by `test`.`t1`.`grp`
select grp,group_concat(a,c) from t1 group by grp;
......@@ -90,8 +90,8 @@ grp group_concat(distinct c order by c desc)
2 c,b
3 E,D,C
explain extended select grp,group_concat(distinct c order by c desc) from t1 group by grp;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ALL NULL NULL NULL NULL 9 Using filesort
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t1 ALL NULL NULL NULL NULL 9 100.00 Using filesort
Warnings:
Note 1003 select `test`.`t1`.`grp` AS `grp`,group_concat(distinct `test`.`t1`.`c` order by `test`.`t1`.`c` DESC separator ',') AS `group_concat(distinct c order by c desc)` from `test`.`t1` group by `test`.`t1`.`grp`
select grp,group_concat(c order by c separator ",") from t1 group by grp;
......@@ -110,8 +110,8 @@ grp group_concat(distinct c order by c separator ",")
2 b,c
3 C,D,E
explain extended select grp,group_concat(distinct c order by c separator ",") from t1 group by grp;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ALL NULL NULL NULL NULL 9 Using filesort
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t1 ALL NULL NULL NULL NULL 9 100.00 Using filesort
Warnings:
Note 1003 select `test`.`t1`.`grp` AS `grp`,group_concat(distinct `test`.`t1`.`c` order by `test`.`t1`.`c` ASC separator ',') AS `group_concat(distinct c order by c separator ",")` from `test`.`t1` group by `test`.`t1`.`grp`
select grp,group_concat(distinct c order by c desc separator ",") from t1 group by grp;
......
......@@ -287,8 +287,8 @@ a count(b) sum(b) avg(b) std(b) min(b) max(b) bit_and(b) bit_or(b) bit_xor(b)
2 1 1 1.00000 0.00000 1 1 1 1 1
3 1 1 1.00000 0.00000 1 1 1 1 1
explain extended select SQL_BIG_RESULT a,count(b), sum(b), avg(b), std(b), min(b), max(b), bit_and(b), bit_or(b), bit_xor(b) from t1 group by a;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ALL NULL NULL NULL NULL 5 Using filesort
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t1 ALL NULL NULL NULL NULL 5 100.00 Using filesort
Warnings:
Note 1003 select sql_big_result `test`.`t1`.`a` AS `a`,count(`test`.`t1`.`b`) AS `count(b)`,sum(`test`.`t1`.`b`) AS `sum(b)`,avg(`test`.`t1`.`b`) AS `avg(b)`,std(`test`.`t1`.`b`) AS `std(b)`,min(`test`.`t1`.`b`) AS `min(b)`,max(`test`.`t1`.`b`) AS `max(b)`,bit_and(`test`.`t1`.`b`) AS `bit_and(b)`,bit_or(`test`.`t1`.`b`) AS `bit_or(b)`,bit_xor(`test`.`t1`.`b`) AS `bit_xor(b)` from `test`.`t1` group by `test`.`t1`.`a`
drop table t1;
......
......@@ -40,8 +40,8 @@ a
aa
aaa
explain extended select if(u=1,st,binary st) s from t1 where st like "%a%" order by s;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ALL NULL NULL NULL NULL 7 Using where; Using filesort
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t1 ALL NULL NULL NULL NULL 7 100.00 Using where; Using filesort
Warnings:
Note 1003 select if((`test`.`t1`.`u` = 1),`test`.`t1`.`st`,cast(`test`.`t1`.`st` as char charset binary)) AS `s` from `test`.`t1` where (`test`.`t1`.`st` like _latin1'%a%') order by if((`test`.`t1`.`u` = 1),`test`.`t1`.`st`,cast(`test`.`t1`.`st` as char charset binary))
select nullif(u, 1) from t1;
......@@ -54,8 +54,8 @@ NULL
0
0
explain extended select nullif(u, 1) from t1;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ALL NULL NULL NULL NULL 7
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t1 ALL NULL NULL NULL NULL 7 100.00
Warnings:
Note 1003 select nullif(`test`.`t1`.`u`,1) AS `nullif(u, 1)` from `test`.`t1`
drop table t1;
......
......@@ -143,8 +143,8 @@ select * from t1 where 'a' in (a,b,c collate latin1_bin);
a b c
a c c
explain extended select * from t1 where 'a' in (a,b,c collate latin1_bin);
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ALL NULL NULL NULL NULL 2 Using where
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t1 ALL NULL NULL NULL NULL 2 100.00 Using where
Warnings:
Note 1003 select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b`,`test`.`t1`.`c` AS `c` from `test`.`t1` where (_latin1'a' in (`test`.`t1`.`a`,`test`.`t1`.`b`,(`test`.`t1`.`c` collate latin1_bin)))
drop table t1;
......
drop table if exists t1;
create table t1 (a varchar(10), key(a));
insert into t1 values ("a"),("abc"),("abcd"),("hello"),("test");
explain select * from t1 where a like 'abc%';
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 index a a 13 NULL 5 Using where; Using index
explain select * from t1 where a like concat('abc','%');
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 index a a 13 NULL 5 Using where; Using index
explain extended select * from t1 where a like 'abc%';
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t1 index a a 13 NULL 5 20.00 Using where; Using index
Warnings:
Note 1003 select `test`.`t1`.`a` AS `a` from `test`.`t1` where (`test`.`t1`.`a` like _latin1'abc%')
explain extended select * from t1 where a like concat('abc','%');
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t1 index a a 13 NULL 5 20.00 Using where; Using index
Warnings:
Note 1003 select `test`.`t1`.`a` AS `a` from `test`.`t1` where (`test`.`t1`.`a` like concat(_latin1'abc',_latin1'%'))
select * from t1 where a like "abc%";
a
abc
......
......@@ -3,32 +3,32 @@ select floor(5.5),floor(-5.5);
floor(5.5) floor(-5.5)
5 -6
explain extended select floor(5.5),floor(-5.5);
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL No tables used
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
Warnings:
Note 1003 select floor(5.5) AS `floor(5.5)`,floor(-(5.5)) AS `floor(-5.5)`
select ceiling(5.5),ceiling(-5.5);
ceiling(5.5) ceiling(-5.5)
6 -5
explain extended select ceiling(5.5),ceiling(-5.5);
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL No tables used
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
Warnings:
Note 1003 select ceiling(5.5) AS `ceiling(5.5)`,ceiling(-(5.5)) AS `ceiling(-5.5)`
select truncate(52.64,1),truncate(52.64,2),truncate(52.64,-1),truncate(52.64,-2), truncate(-52.64,1),truncate(-52.64,-1);
truncate(52.64,1) truncate(52.64,2) truncate(52.64,-1) truncate(52.64,-2) truncate(-52.64,1) truncate(-52.64,-1)
52.6 52.64 50 0 -52.6 -50
explain extended select truncate(52.64,1),truncate(52.64,2),truncate(52.64,-1),truncate(52.64,-2), truncate(-52.64,1),truncate(-52.64,-1);
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL No tables used
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
Warnings:
Note 1003 select truncate(52.64,1) AS `truncate(52.64,1)`,truncate(52.64,2) AS `truncate(52.64,2)`,truncate(52.64,-(1)) AS `truncate(52.64,-1)`,truncate(52.64,-(2)) AS `truncate(52.64,-2)`,truncate(-(52.64),1) AS `truncate(-52.64,1)`,truncate(-(52.64),-(1)) AS `truncate(-52.64,-1)`
select round(5.5),round(-5.5);
round(5.5) round(-5.5)
6 -6
explain extended select round(5.5),round(-5.5);
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL No tables used
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
Warnings:
Note 1003 select round(5.5,0) AS `round(5.5)`,round(-(5.5),0) AS `round(-5.5)`
select round(5.64,1),round(5.64,2),round(5.64,-1),round(5.64,-2);
......@@ -38,48 +38,48 @@ select abs(-10), sign(-5), sign(5), sign(0);
abs(-10) sign(-5) sign(5) sign(0)
10 -1 1 0
explain extended select abs(-10), sign(-5), sign(5), sign(0);
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL No tables used
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
Warnings:
Note 1003 select abs(-(10)) AS `abs(-10)`,sign(-(5)) AS `sign(-5)`,sign(5) AS `sign(5)`,sign(0) AS `sign(0)`
select log(exp(10)),exp(log(sqrt(10))*2),log(-1),log(NULL),log(1,1),log(3,9),log(-1,2),log(NULL,2);
log(exp(10)) exp(log(sqrt(10))*2) log(-1) log(NULL) log(1,1) log(3,9) log(-1,2) log(NULL,2)
10 10 NULL NULL NULL 2 NULL NULL
explain extended select log(exp(10)),exp(log(sqrt(10))*2),log(-1),log(NULL),log(1,1),log(3,9),log(-1,2),log(NULL,2);
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL No tables used
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
Warnings:
Note 1003 select log(exp(10)) AS `log(exp(10))`,exp((log(sqrt(10)) * 2)) AS `exp(log(sqrt(10))*2)`,log(-(1)) AS `log(-1)`,log(NULL) AS `log(NULL)`,log(1,1) AS `log(1,1)`,log(3,9) AS `log(3,9)`,log(-(1),2) AS `log(-1,2)`,log(NULL,2) AS `log(NULL,2)`
select ln(exp(10)),exp(ln(sqrt(10))*2),ln(-1),ln(0),ln(NULL);
ln(exp(10)) exp(ln(sqrt(10))*2) ln(-1) ln(0) ln(NULL)
10 10 NULL NULL NULL
explain extended select ln(exp(10)),exp(ln(sqrt(10))*2),ln(-1),ln(0),ln(NULL);
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL No tables used
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
Warnings:
Note 1003 select ln(exp(10)) AS `ln(exp(10))`,exp((ln(sqrt(10)) * 2)) AS `exp(ln(sqrt(10))*2)`,ln(-(1)) AS `ln(-1)`,ln(0) AS `ln(0)`,ln(NULL) AS `ln(NULL)`
select log2(8),log2(15),log2(-2),log2(0),log2(NULL);
log2(8) log2(15) log2(-2) log2(0) log2(NULL)
3 3.9068905956085 NULL NULL NULL
explain extended select log2(8),log2(15),log2(-2),log2(0),log2(NULL);
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL No tables used
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
Warnings:
Note 1003 select log2(8) AS `log2(8)`,log2(15) AS `log2(15)`,log2(-(2)) AS `log2(-2)`,log2(0) AS `log2(0)`,log2(NULL) AS `log2(NULL)`
select log10(100),log10(18),log10(-4),log10(0),log10(NULL);
log10(100) log10(18) log10(-4) log10(0) log10(NULL)
2 1.2552725051033 NULL NULL NULL
explain extended select log10(100),log10(18),log10(-4),log10(0),log10(NULL);
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL No tables used
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
Warnings:
Note 1003 select log10(100) AS `log10(100)`,log10(18) AS `log10(18)`,log10(-(4)) AS `log10(-4)`,log10(0) AS `log10(0)`,log10(NULL) AS `log10(NULL)`
select pow(10,log10(10)),power(2,4);
pow(10,log10(10)) power(2,4)
10 16
explain extended select pow(10,log10(10)),power(2,4);
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL No tables used
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
Warnings:
Note 1003 select pow(10,log10(10)) AS `pow(10,log10(10))`,pow(2,4) AS `power(2,4)`
set @@rand_seed1=10000000,@@rand_seed2=1000000;
......@@ -87,16 +87,16 @@ select rand(999999),rand();
rand(999999) rand()
0.014231365187309 0.028870999839968
explain extended select rand(999999),rand();
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL No tables used
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
Warnings:
Note 1003 select sql_no_cache rand(999999) AS `rand(999999)`,rand() AS `rand()`
select pi(),format(sin(pi()/2),6),format(cos(pi()/2),6),format(abs(tan(pi())),6),format(cot(1),6),format(asin(1),6),format(acos(0),6),format(atan(1),6);
pi() format(sin(pi()/2),6) format(cos(pi()/2),6) format(abs(tan(pi())),6) format(cot(1),6) format(asin(1),6) format(acos(0),6) format(atan(1),6)
3.141593 1.000000 0.000000 0.000000 0.642093 1.570796 1.570796 0.785398
explain extended select pi(),format(sin(pi()/2),6),format(cos(pi()/2),6),format(abs(tan(pi())),6),format(cot(1),6),format(asin(1),6),format(acos(0),6),format(atan(1),6);
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL No tables used
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
Warnings:
Note 1003 select pi() AS `pi()`,format(sin((pi() / 2)),6) AS `format(sin(pi()/2),6)`,format(cos((pi() / 2)),6) AS `format(cos(pi()/2),6)`,format(abs(tan(pi())),6) AS `format(abs(tan(pi())),6)`,format((1 / tan(1)),6) AS `format(cot(1),6)`,format(asin(1),6) AS `format(asin(1),6)`,format(acos(0),6) AS `format(acos(0),6)`,format(atan(1),6) AS `format(atan(1),6)`
select degrees(pi()),radians(360);
......@@ -124,8 +124,8 @@ select format(4.55, 1), format(4.551, 1);
format(4.55, 1) format(4.551, 1)
4.6 4.6
explain extended select degrees(pi()),radians(360);
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL No tables used
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
Warnings:
Note 1003 select degrees(pi()) AS `degrees(pi())`,radians(360) AS `radians(360)`
select rand(rand);
......
......@@ -2,16 +2,16 @@ select 1+1,1-1,1+1*2,8/5,8%5,mod(8,5),mod(8,5)|0,-(1+1)*-2;
1+1 1-1 1+1*2 8/5 8%5 mod(8,5) mod(8,5)|0 -(1+1)*-2
2 0 3 1.6000 3 3 3 4
explain extended select 1+1,1-1,1+1*2,8/5,8%5,mod(8,5),mod(8,5)|0,-(1+1)*-2;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL No tables used
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
Warnings:
Note 1003 select (1 + 1) AS `1+1`,(1 - 1) AS `1-1`,(1 + (1 * 2)) AS `1+1*2`,(8 / 5) AS `8/5`,(8 % 5) AS `8%5`,(8 % 5) AS `mod(8,5)`,((8 % 5) | 0) AS `mod(8,5)|0`,(-((1 + 1)) * -(2)) AS `-(1+1)*-2`
select 1 | (1+1),5 & 3,bit_count(7) ;
1 | (1+1) 5 & 3 bit_count(7)
3 1 3
explain extended select 1 | (1+1),5 & 3,bit_count(7) ;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL No tables used
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
Warnings:
Note 1003 select (1 | (1 + 1)) AS `1 | (1+1)`,(5 & 3) AS `5 & 3`,bit_count(7) AS `bit_count(7)`
select 1 << 32,1 << 63, 1 << 64, 4 >> 2, 4 >> 63, 1<< 63 >> 60;
......
......@@ -37,8 +37,8 @@ select * from t1 where xxx regexp('is a test of some long text to');
xxx
this is a test of some long text to see what happens
explain extended select * from t1 where xxx regexp('is a test of some long text to');
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 system NULL NULL NULL NULL 1
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t1 system NULL NULL NULL NULL 1 100.00
Warnings:
Note 1003 select `test`.`t1`.`xxx` AS `xxx` from `test`.`t1` where (`test`.`t1`.`xxx` regexp _latin1'is a test of some long text to')
select * from t1 where xxx regexp('is a test of some long text to ');
......
......@@ -2,8 +2,8 @@ select interval(55,10,20,30,40,50,60,70,80,90,100),interval(3,1,1+1,1+1+1+1),fie
interval(55,10,20,30,40,50,60,70,80,90,100) interval(3,1,1+1,1+1+1+1) field("IBM","NCA","ICL","SUN","IBM","DIGITAL") field("A","B","C") elt(2,"ONE","TWO","THREE") interval(0,1,2,3,4) elt(1,1,2,3)|0 elt(1,1.1,1.2,1.3)+0
5 2 4 0 TWO 0 1 1.1
explain extended select INTERVAL(55,10,20,30,40,50,60,70,80,90,100),interval(3,1,1+1,1+1+1+1),field("IBM","NCA","ICL","SUN","IBM","DIGITAL"),field("A","B","C"),elt(2,"ONE","TWO","THREE"),interval(0,1,2,3,4),elt(1,1,2,3)|0,elt(1,1.1,1.2,1.3)+0;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL No tables used
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
Warnings:
Note 1003 select interval((55,10,20,30,40,50,60,70,80,90,100)) AS `INTERVAL(55,10,20,30,40,50,60,70,80,90,100)`,interval((3,1,(1 + 1),(((1 + 1) + 1) + 1))) AS `interval(3,1,1+1,1+1+1+1)`,field(_latin1'IBM',_latin1'NCA',_latin1'ICL',_latin1'SUN',_latin1'IBM',_latin1'DIGITAL') AS `field("IBM","NCA","ICL","SUN","IBM","DIGITAL")`,field(_latin1'A',_latin1'B',_latin1'C') AS `field("A","B","C")`,elt(2,_latin1'ONE',_latin1'TWO',_latin1'THREE') AS `elt(2,"ONE","TWO","THREE")`,interval((0,1,2,3,4)) AS `interval(0,1,2,3,4)`,(elt(1,1,2,3) | 0) AS `elt(1,1,2,3)|0`,(elt(1,1.1,1.2,1.3) + 0) AS `elt(1,1.1,1.2,1.3)+0`
SELECT INTERVAL(13, 7, 14, 21, 28, 35, 42, 49, 56);
......
......@@ -811,8 +811,8 @@ select substring_index("1abcd;2abcd;3abcd;4abcd", ';', 2),substring_index("1abcd
substring_index("1abcd;2abcd;3abcd;4abcd", ';', 2) substring_index("1abcd;2abcd;3abcd;4abcd", ';', -2)
1abcd;2abcd 3abcd;4abcd
explain extended select md5('hello'), sha('abc'), sha1('abc'), soundex(''), 'mood' sounds like 'mud', aes_decrypt(aes_encrypt('abc','1'),'1'),concat('*',space(5),'*'), reverse('abc'), rpad('a',4,'1'), lpad('a',4,'1'), concat_ws(',','',NULL,'a'),make_set(255,_latin2'a',_latin2'b',_latin2'c'),elt(2,1),locate("a","b",2),format(130,10),char(0),conv(130,16,10),hex(130),binary 'HE', export_set(255,_latin2'y',_latin2'n',_latin2' '),FIELD('b' COLLATE latin1_bin,'A','B'),FIND_IN_SET(_latin1'B',_latin1'a,b,c,d'),collation(conv(130,16,10)), coercibility(conv(130,16,10)),length('\n\t\r\b\0\_\%\\'),bit_length('\n\t\r\b\0\_\%\\'),bit_length('\n\t\r\b\0\_\%\\'),concat('monty',' was here ','again'),length('hello'),char(ascii('h')),ord('h'),quote(1/0),crc32("123"),replace('aaaa','a','b'),insert('txs',2,1,'hi'),left(_latin2'a',1),right(_latin2'a',1),lcase(_latin2'a'),ucase(_latin2'a'),SUBSTR('abcdefg',3,2),substring_index("1abcd;2abcd;3abcd;4abcd", ';', 2),trim(_latin2' a '),ltrim(_latin2' a '),rtrim(_latin2' a '), decode(encode(repeat("a",100000),"monty"),"monty");
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL No tables used
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
Warnings:
Note 1003 select md5(_latin1'hello') AS `md5('hello')`,sha(_latin1'abc') AS `sha('abc')`,sha(_latin1'abc') AS `sha1('abc')`,soundex(_latin1'') AS `soundex('')`,(soundex(_latin1'mood') = soundex(_latin1'mud')) AS `'mood' sounds like 'mud'`,aes_decrypt(aes_encrypt(_latin1'abc',_latin1'1'),_latin1'1') AS `aes_decrypt(aes_encrypt('abc','1'),'1')`,concat(_latin1'*',repeat(_latin1' ',5),_latin1'*') AS `concat('*',space(5),'*')`,reverse(_latin1'abc') AS `reverse('abc')`,rpad(_latin1'a',4,_latin1'1') AS `rpad('a',4,'1')`,lpad(_latin1'a',4,_latin1'1') AS `lpad('a',4,'1')`,concat_ws(_latin1',',_latin1'',NULL,_latin1'a') AS `concat_ws(',','',NULL,'a')`,make_set(255,_latin2'a',_latin2'b',_latin2'c') AS `make_set(255,_latin2'a',_latin2'b',_latin2'c')`,elt(2,1) AS `elt(2,1)`,locate(_latin1'a',_latin1'b',2) AS `locate("a","b",2)`,format(130,10) AS `format(130,10)`,char(0) AS `char(0)`,conv(130,16,10) AS `conv(130,16,10)`,hex(130) AS `hex(130)`,cast(_latin1'HE' as char charset binary) AS `binary 'HE'`,export_set(255,_latin2'y',_latin2'n',_latin2' ') AS `export_set(255,_latin2'y',_latin2'n',_latin2' ')`,field((_latin1'b' collate latin1_bin),_latin1'A',_latin1'B') AS `FIELD('b' COLLATE latin1_bin,'A','B')`,find_in_set(_latin1'B',_latin1'a,b,c,d') AS `FIND_IN_SET(_latin1'B',_latin1'a,b,c,d')`,collation(conv(130,16,10)) AS `collation(conv(130,16,10))`,coercibility(conv(130,16,10)) AS `coercibility(conv(130,16,10))`,length(_latin1'\n \r\0\\_\\%\\') AS `length('\n\t\r\b\0\_\%\\')`,bit_length(_latin1'\n \r\0\\_\\%\\') AS `bit_length('\n\t\r\b\0\_\%\\')`,bit_length(_latin1'\n \r\0\\_\\%\\') AS `bit_length('\n\t\r\b\0\_\%\\')`,concat(_latin1'monty',_latin1' was here ',_latin1'again') AS `concat('monty',' was here ','again')`,length(_latin1'hello') AS `length('hello')`,char(ascii(_latin1'h')) AS `char(ascii('h'))`,ord(_latin1'h') AS `ord('h')`,quote((1 / 0)) AS `quote(1/0)`,crc32(_latin1'123') AS `crc32("123")`,replace(_latin1'aaaa',_latin1'a',_latin1'b') AS `replace('aaaa','a','b')`,insert(_latin1'txs',2,1,_latin1'hi') AS `insert('txs',2,1,'hi')`,left(_latin2'a',1) AS `left(_latin2'a',1)`,right(_latin2'a',1) AS `right(_latin2'a',1)`,lcase(_latin2'a') AS `lcase(_latin2'a')`,ucase(_latin2'a') AS `ucase(_latin2'a')`,substr(_latin1'abcdefg',3,2) AS `SUBSTR('abcdefg',3,2)`,substring_index(_latin1'1abcd;2abcd;3abcd;4abcd',_latin1';',2) AS `substring_index("1abcd;2abcd;3abcd;4abcd", ';', 2)`,trim(_latin2' a ') AS `trim(_latin2' a ')`,ltrim(_latin2' a ') AS `ltrim(_latin2' a ')`,rtrim(_latin2' a ') AS `rtrim(_latin2' a ')`,decode(encode(repeat(_latin1'a',100000))) AS `decode(encode(repeat("a",100000),"monty"),"monty")`
SELECT lpad(12345, 5, "#");
......
......@@ -38,8 +38,8 @@ select charset(version());
charset(version())
utf8
explain extended select database(), user();
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL No tables used
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
Warnings:
Note 1003 select sql_no_cache database() AS `database()`,user() AS `user()`
create table t1 (version char(60)) select database(), user(), version() as 'version';
......
......@@ -45,8 +45,8 @@ select 3 ^ 11, 1 ^ 1, 1 ^ 0, 1 ^ NULL, NULL ^ 1;
3 ^ 11 1 ^ 1 1 ^ 0 1 ^ NULL NULL ^ 1
8 0 1 NULL NULL
explain extended select 3 ^ 11, 1 ^ 1, 1 ^ 0, 1 ^ NULL, NULL ^ 1;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL No tables used
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
Warnings:
Note 1003 select (3 ^ 11) AS `3 ^ 11`,(1 ^ 1) AS `1 ^ 1`,(1 ^ 0) AS `1 ^ 0`,(1 ^ NULL) AS `1 ^ NULL`,(NULL ^ 1) AS `NULL ^ 1`
select 1 XOR 1, 1 XOR 0, 0 XOR 1, 0 XOR 0, NULL XOR 1, 1 XOR NULL, 0 XOR NULL;
......@@ -59,16 +59,16 @@ select 10 % 7, 10 mod 7, 10 div 3;
10 % 7 10 mod 7 10 div 3
3 3 3
explain extended select 10 % 7, 10 mod 7, 10 div 3;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL No tables used
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
Warnings:
Note 1003 select (10 % 7) AS `10 % 7`,(10 % 7) AS `10 mod 7`,(10 DIV 3) AS `10 div 3`
select (1 << 64)-1, ((1 << 64)-1) DIV 1, ((1 << 64)-1) DIV 2;
(1 << 64)-1 ((1 << 64)-1) DIV 1 ((1 << 64)-1) DIV 2
18446744073709551615 18446744073709551615 9223372036854775807
explain extended select (1 << 64)-1, ((1 << 64)-1) DIV 1, ((1 << 64)-1) DIV 2;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL No tables used
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
Warnings:
Note 1003 select ((1 << 64) - 1) AS `(1 << 64)-1`,(((1 << 64) - 1) DIV 1) AS `((1 << 64)-1) DIV 1`,(((1 << 64) - 1) DIV 2) AS `((1 << 64)-1) DIV 2`
create table t1 (a int);
......@@ -76,16 +76,16 @@ insert t1 values (1);
select * from t1 where 1 xor 1;
a
explain extended select * from t1 where 1 xor 1;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL Impossible WHERE
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL Impossible WHERE
Warnings:
Note 1003 select `test`.`t1`.`a` AS `a` from `test`.`t1`
select - a from t1;
- a
-1
explain extended select - a from t1;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 system NULL NULL NULL NULL 1
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t1 system NULL NULL NULL NULL 1 100.00
Warnings:
Note 1003 select -(`test`.`t1`.`a`) AS `- a` from `test`.`t1`
drop table t1;
......@@ -105,8 +105,8 @@ select _koi8r'a' = _koi8r'A' COLLATE koi8r_general_ci;
_koi8r'a' = _koi8r'A' COLLATE koi8r_general_ci
1
explain extended select _koi8r'a' = _koi8r'A' COLLATE koi8r_general_ci;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL No tables used
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
Warnings:
Note 1003 select (_koi8r'a' = (_koi8r'A' collate koi8r_general_ci)) AS `_koi8r'a' = _koi8r'A' COLLATE koi8r_general_ci`
select _koi8r'a' = _koi8r'A' COLLATE koi8r_bin;
......
......@@ -719,8 +719,8 @@ select strcmp(concat(utc_date(),' ',utc_time()),utc_timestamp())=0;
strcmp(concat(utc_date(),' ',utc_time()),utc_timestamp())=0
1
explain extended select period_add("9602",-12),period_diff(199505,"9404"),from_days(to_days("960101")),dayofmonth("1997-01-02"), month("1997-01-02"), monthname("1972-03-04"),dayofyear("0000-00-00"),HOUR("1997-03-03 23:03:22"),MINUTE("23:03:22"),SECOND(230322),QUARTER(980303),WEEK("1998-03-03"),yearweek("2000-01-01",1),week(19950101,1),year("98-02-03"),weekday(curdate())-weekday(now()),dayname("1962-03-03"),unix_timestamp(),sec_to_time(time_to_sec("0:30:47")/6.21),curtime(),utc_time(),curdate(),utc_date(),utc_timestamp(),date_format("1997-01-02 03:04:05", "%M %W %D %Y %y %m %d %h %i %s %w"),from_unixtime(unix_timestamp("1994-03-02 10:11:12")),"1997-12-31 23:59:59" + INTERVAL 1 SECOND,"1998-01-01 00:00:00" - INTERVAL 1 SECOND,INTERVAL 1 DAY + "1997-12-31", extract(YEAR FROM "1999-01-02 10:11:12"),date_add("1997-12-31 23:59:59",INTERVAL 1 SECOND);
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL No tables used
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
Warnings:
Note 1003 select sql_no_cache period_add(_latin1'9602',-(12)) AS `period_add("9602",-12)`,period_diff(199505,_latin1'9404') AS `period_diff(199505,"9404")`,from_days(to_days(_latin1'960101')) AS `from_days(to_days("960101"))`,dayofmonth(_latin1'1997-01-02') AS `dayofmonth("1997-01-02")`,month(_latin1'1997-01-02') AS `month("1997-01-02")`,monthname(_latin1'1972-03-04') AS `monthname("1972-03-04")`,dayofyear(_latin1'0000-00-00') AS `dayofyear("0000-00-00")`,hour(_latin1'1997-03-03 23:03:22') AS `HOUR("1997-03-03 23:03:22")`,minute(_latin1'23:03:22') AS `MINUTE("23:03:22")`,second(230322) AS `SECOND(230322)`,quarter(980303) AS `QUARTER(980303)`,week(_latin1'1998-03-03',0) AS `WEEK("1998-03-03")`,yearweek(_latin1'2000-01-01',1) AS `yearweek("2000-01-01",1)`,week(19950101,1) AS `week(19950101,1)`,year(_latin1'98-02-03') AS `year("98-02-03")`,(weekday(curdate()) - weekday(now())) AS `weekday(curdate())-weekday(now())`,dayname(_latin1'1962-03-03') AS `dayname("1962-03-03")`,unix_timestamp() AS `unix_timestamp()`,sec_to_time((time_to_sec(_latin1'0:30:47') / 6.21)) AS `sec_to_time(time_to_sec("0:30:47")/6.21)`,curtime() AS `curtime()`,utc_time() AS `utc_time()`,curdate() AS `curdate()`,utc_date() AS `utc_date()`,utc_timestamp() AS `utc_timestamp()`,date_format(_latin1'1997-01-02 03:04:05',_latin1'%M %W %D %Y %y %m %d %h %i %s %w') AS `date_format("1997-01-02 03:04:05", "%M %W %D %Y %y %m %d %h %i %s %w")`,from_unixtime(unix_timestamp(_latin1'1994-03-02 10:11:12')) AS `from_unixtime(unix_timestamp("1994-03-02 10:11:12"))`,(_latin1'1997-12-31 23:59:59' + interval 1 second) AS `"1997-12-31 23:59:59" + INTERVAL 1 SECOND`,(_latin1'1998-01-01 00:00:00' - interval 1 second) AS `"1998-01-01 00:00:00" - INTERVAL 1 SECOND`,(_latin1'1997-12-31' + interval 1 day) AS `INTERVAL 1 DAY + "1997-12-31"`,extract(year from _latin1'1999-01-02 10:11:12') AS `extract(YEAR FROM "1999-01-02 10:11:12")`,(_latin1'1997-12-31 23:59:59' + interval 1 second) AS `date_add("1997-12-31 23:59:59",INTERVAL 1 SECOND)`
SET @TMP=NOW();
......@@ -808,8 +808,8 @@ drop table t1;
End of 4.1 tests
explain extended select timestampdiff(SQL_TSI_WEEK, '2001-02-01', '2001-05-01') as a1,
timestampdiff(SQL_TSI_FRAC_SECOND, '2001-02-01 12:59:59.120000', '2001-05-01 12:58:58.119999') as a2;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL No tables used
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
Warnings:
Note 1003 select timestampdiff(WEEK,_latin1'2001-02-01',_latin1'2001-05-01') AS `a1`,timestampdiff(SECOND_FRAC,_latin1'2001-02-01 12:59:59.120000',_latin1'2001-05-01 12:58:58.119999') AS `a2`
select time_format('100:00:00', '%H %k %h %I %l');
......
......@@ -225,8 +225,8 @@ fid AsText(Envelope(g))
120 POLYGON((0 0,10 0,10 10,0 10,0 0))
121 POLYGON((3 6,44 6,44 9,3 9,3 6))
explain extended select Dimension(g), GeometryType(g), IsEmpty(g), AsText(Envelope(g)) from gis_geometry;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE gis_geometry ALL NULL NULL NULL NULL 21
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE gis_geometry ALL NULL NULL NULL NULL 21 100.00
Warnings:
Note 1003 select dimension(`test`.`gis_geometry`.`g`) AS `Dimension(g)`,geometrytype(`test`.`gis_geometry`.`g`) AS `GeometryType(g)`,isempty(`test`.`gis_geometry`.`g`) AS `IsEmpty(g)`,astext(envelope(`test`.`gis_geometry`.`g`)) AS `AsText(Envelope(g))` from `test`.`gis_geometry`
SELECT fid, X(g) FROM gis_point;
......@@ -242,8 +242,8 @@ fid Y(g)
103 20
104 20
explain extended select X(g),Y(g) FROM gis_point;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE gis_point ALL NULL NULL NULL NULL 4
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE gis_point ALL NULL NULL NULL NULL 4 100.00
Warnings:
Note 1003 select x(`test`.`gis_point`.`g`) AS `X(g)`,y(`test`.`gis_point`.`g`) AS `Y(g)` from `test`.`gis_point`
SELECT fid, AsText(StartPoint(g)) FROM gis_line;
......@@ -277,8 +277,8 @@ fid IsClosed(g)
106 1
107 0
explain extended select AsText(StartPoint(g)),AsText(EndPoint(g)),GLength(g),NumPoints(g),AsText(PointN(g, 2)),IsClosed(g) FROM gis_line;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE gis_line ALL NULL NULL NULL NULL 3
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE gis_line ALL NULL NULL NULL NULL 3 100.00
Warnings:
Note 1003 select astext(startpoint(`test`.`gis_line`.`g`)) AS `AsText(StartPoint(g))`,astext(endpoint(`test`.`gis_line`.`g`)) AS `AsText(EndPoint(g))`,glength(`test`.`gis_line`.`g`) AS `GLength(g)`,numpoints(`test`.`gis_line`.`g`) AS `NumPoints(g)`,astext(pointn(`test`.`gis_line`.`g`,2)) AS `AsText(PointN(g, 2))`,isclosed(`test`.`gis_line`.`g`) AS `IsClosed(g)` from `test`.`gis_line`
SELECT fid, AsText(Centroid(g)) FROM gis_polygon;
......@@ -307,8 +307,8 @@ fid AsText(InteriorRingN(g, 1))
109 LINESTRING(10 10,20 10,20 20,10 20,10 10)
110 NULL
explain extended select AsText(Centroid(g)),Area(g),AsText(ExteriorRing(g)),NumInteriorRings(g),AsText(InteriorRingN(g, 1)) FROM gis_polygon;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE gis_polygon ALL NULL NULL NULL NULL 3
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE gis_polygon ALL NULL NULL NULL NULL 3 100.00
Warnings:
Note 1003 select astext(centroid(`test`.`gis_polygon`.`g`)) AS `AsText(Centroid(g))`,area(`test`.`gis_polygon`.`g`) AS `Area(g)`,astext(exteriorring(`test`.`gis_polygon`.`g`)) AS `AsText(ExteriorRing(g))`,numinteriorrings(`test`.`gis_polygon`.`g`) AS `NumInteriorRings(g)`,astext(interiorringn(`test`.`gis_polygon`.`g`,1)) AS `AsText(InteriorRingN(g, 1))` from `test`.`gis_polygon`
SELECT fid, IsClosed(g) FROM gis_multi_line;
......@@ -346,8 +346,8 @@ fid NumGeometries(g)
120 2
121 2
explain extended SELECT fid, NumGeometries(g) from gis_multi_point;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE gis_multi_point ALL NULL NULL NULL NULL 3
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE gis_multi_point ALL NULL NULL NULL NULL 3 100.00
Warnings:
Note 1003 select `test`.`gis_multi_point`.`fid` AS `fid`,numgeometries(`test`.`gis_multi_point`.`g`) AS `NumGeometries(g)` from `test`.`gis_multi_point`
SELECT fid, AsText(GeometryN(g, 2)) from gis_multi_point;
......@@ -374,8 +374,8 @@ fid AsText(GeometryN(g, 1))
120 POINT(0 0)
121 POINT(44 6)
explain extended SELECT fid, AsText(GeometryN(g, 2)) from gis_multi_point;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE gis_multi_point ALL NULL NULL NULL NULL 3
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE gis_multi_point ALL NULL NULL NULL NULL 3 100.00
Warnings:
Note 1003 select `test`.`gis_multi_point`.`fid` AS `fid`,astext(geometryn(`test`.`gis_multi_point`.`g`,2)) AS `AsText(GeometryN(g, 2))` from `test`.`gis_multi_point`
SELECT g1.fid as first, g2.fid as second,
......@@ -393,9 +393,9 @@ Within(g1.g, g2.g) as w, Contains(g1.g, g2.g) as c, Overlaps(g1.g, g2.g) as o,
Equals(g1.g, g2.g) as e, Disjoint(g1.g, g2.g) as d, Touches(g1.g, g2.g) as t,
Intersects(g1.g, g2.g) as i, Crosses(g1.g, g2.g) as r
FROM gis_geometrycollection g1, gis_geometrycollection g2 ORDER BY first, second;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE g1 ALL NULL NULL NULL NULL 2 Using temporary; Using filesort
1 SIMPLE g2 ALL NULL NULL NULL NULL 2
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE g1 ALL NULL NULL NULL NULL 2 100.00 Using temporary; Using filesort
1 SIMPLE g2 ALL NULL NULL NULL NULL 2 100.00
Warnings:
Note 1003 select `test`.`g1`.`fid` AS `first`,`test`.`g2`.`fid` AS `second`,within(`test`.`g1`.`g`,`test`.`g2`.`g`) AS `w`,contains(`test`.`g1`.`g`,`test`.`g2`.`g`) AS `c`,overlaps(`test`.`g1`.`g`,`test`.`g2`.`g`) AS `o`,equals(`test`.`g1`.`g`,`test`.`g2`.`g`) AS `e`,disjoint(`test`.`g1`.`g`,`test`.`g2`.`g`) AS `d`,touches(`test`.`g1`.`g`,`test`.`g2`.`g`) AS `t`,intersects(`test`.`g1`.`g`,`test`.`g2`.`g`) AS `i`,crosses(`test`.`g1`.`g`,`test`.`g2`.`g`) AS `r` from `test`.`gis_geometrycollection` `g1` join `test`.`gis_geometrycollection` `g2` order by `test`.`g1`.`fid`,`test`.`g2`.`fid`
DROP TABLE gis_point, gis_line, gis_polygon, gis_multi_point, gis_multi_line, gis_multi_polygon, gis_geometrycollection, gis_geometry;
......@@ -436,26 +436,26 @@ SELECT AsText(GeometryFromWKB(AsWKB(GeometryFromText('POINT(1 4)'))));
AsText(GeometryFromWKB(AsWKB(GeometryFromText('POINT(1 4)'))))
POINT(1 4)
explain extended SELECT AsText(GeometryFromWKB(AsWKB(GeometryFromText('POINT(1 4)'))));
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL No tables used
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
Warnings:
Note 1003 select astext(geometryfromwkb(aswkb(geometryfromtext(_latin1'POINT(1 4)')))) AS `AsText(GeometryFromWKB(AsWKB(GeometryFromText('POINT(1 4)'))))`
explain extended SELECT AsText(GeometryFromWKB(AsWKB(PointFromText('POINT(1 4)'))));
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL No tables used
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
Warnings:
Note 1003 select astext(geometryfromwkb(aswkb(geometryfromtext(_latin1'POINT(1 4)')))) AS `AsText(GeometryFromWKB(AsWKB(PointFromText('POINT(1 4)'))))`
SELECT SRID(GeomFromText('LineString(1 1,2 2)',101));
SRID(GeomFromText('LineString(1 1,2 2)',101))
101
explain extended SELECT SRID(GeomFromText('LineString(1 1,2 2)',101));
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL No tables used
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
Warnings:
Note 1003 select srid(geometryfromtext(_latin1'LineString(1 1,2 2)',101)) AS `SRID(GeomFromText('LineString(1 1,2 2)',101))`
explain extended select issimple(MultiPoint(Point(3, 6), Point(4, 10))), issimple(Point(3, 6));
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL No tables used
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
Warnings:
Note 1003 select issimple(multipoint(point(3,6),point(4,10))) AS `issimple(MultiPoint(Point(3, 6), Point(4, 10)))`,issimple(point(3,6)) AS `issimple(Point(3, 6))`
create table t1 (a geometry not null);
......
......@@ -285,8 +285,8 @@ spid count(*)
2 2
1 1
explain extended select sql_big_result spid,sum(userid) from t1 group by spid desc;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ALL NULL NULL NULL NULL 8 Using filesort
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t1 ALL NULL NULL NULL NULL 8 100.00 Using filesort
Warnings:
Note 1003 select sql_big_result `test`.`t1`.`spID` AS `spid`,sum(`test`.`t1`.`userID`) AS `sum(userid)` from `test`.`t1` group by `test`.`t1`.`spID` desc
explain select sql_big_result spid,sum(userid) from t1 group by spid desc order by null;
......@@ -537,11 +537,11 @@ a b
explain select t1.a,t2.b from t1,t2 where t1.a=t2.a group by t1.a,t2.b;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ALL NULL NULL NULL NULL 6 Using temporary; Using filesort
1 SIMPLE t2 ALL a NULL NULL NULL 3 Using where
1 SIMPLE t2 ALL a NULL NULL NULL 4 Using where
explain select t1.a,t2.b from t1,t2 where t1.a=t2.a group by t1.a,t2.b ORDER BY NULL;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ALL NULL NULL NULL NULL 6 Using temporary
1 SIMPLE t2 ALL a NULL NULL NULL 3 Using where
1 SIMPLE t2 ALL a NULL NULL NULL 4 Using where
drop table t1,t2;
create table t1 (a int, b int);
insert into t1 values (1, 4),(10, 40),(1, 4),(10, 43),(1, 4),(10, 41),(1, 4),(10, 43),(1, 4);
......
This diff is collapsed.
......@@ -9,8 +9,8 @@ select count(a) as b from t1 where a=0 having b >=0;
b
0
explain extended select count(a) as b from t1 where a=0 having b >=0;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
Warnings:
Note 1003 select count(`test`.`t1`.`a`) AS `b` from `test`.`t1` where 0 having (`b` >= 0)
drop table t1;
......
......@@ -166,7 +166,7 @@ alter table t1 add column new_col char(1) not null, add key (btn,new_col), drop
update t1 set new_col=left(btn,1);
explain select * from t1 where btn="a";
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ALL btn NULL NULL NULL 11 Using where
1 SIMPLE t1 ALL btn NULL NULL NULL 14 Using where
explain select * from t1 where btn="a" and new_col="a";
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ref btn btn 11 const,const 2 Using where
......
......@@ -166,7 +166,7 @@ alter table t1 add column new_col char(1) not null, add key using HASH (btn,new_
update t1 set new_col=left(btn,1);
explain select * from t1 where btn="a";
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ALL btn NULL NULL NULL 11 Using where
1 SIMPLE t1 ALL btn NULL NULL NULL 14 Using where
explain select * from t1 where btn="a" and new_col="a";
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ref btn btn 11 const,const 2 Using where
......
......@@ -397,10 +397,10 @@ count(*)
8704
explain select * from t1 WHERE cola = 'foo' AND colb = 'bar';
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 index_merge cola,colb cola,colb 3,3 NULL 24 Using intersect(cola,colb); Using where
1 SIMPLE t1 index_merge cola,colb cola,colb 3,3 NULL 32 Using intersect(cola,colb); Using where
explain select * from t1 force index(cola,colb) WHERE cola = 'foo' AND colb = 'bar';
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 index_merge cola,colb cola,colb 3,3 NULL 24 Using intersect(cola,colb); Using where
1 SIMPLE t1 index_merge cola,colb cola,colb 3,3 NULL 32 Using intersect(cola,colb); Using where
drop table t1;
create table t0 (a int);
insert into t0 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
......
......@@ -109,7 +109,7 @@ count(*)
explain select count(*) from t1 where
key1a = 2 and key1b is null and key2a = 2 and key2b is null;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 index_merge i1,i2 i1,i2 10,10 NULL 3 Using intersect(i1,i2); Using where; Using index
1 SIMPLE t1 index_merge i1,i2 i1,i2 10,10 NULL 4 Using intersect(i1,i2); Using where; Using index
select count(*) from t1 where
key1a = 2 and key1b is null and key2a = 2 and key2b is null;
count(*)
......@@ -117,7 +117,7 @@ count(*)
explain select count(*) from t1 where
key1a = 2 and key1b is null and key3a = 2 and key3b is null;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 index_merge i1,i3 i1,i3 10,10 NULL 3 Using intersect(i1,i3); Using where; Using index
1 SIMPLE t1 index_merge i1,i3 i1,i3 10,10 NULL 4 Using intersect(i1,i3); Using where; Using index
select count(*) from t1 where
key1a = 2 and key1b is null and key3a = 2 and key3b is null;
count(*)
......
......@@ -4,7 +4,7 @@ count(*)
64801
explain select key1,key2 from t1 where key1=100 and key2=100;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 index_merge key1,key2 key1,key2 5,5 NULL 58 Using intersect(key1,key2); Using where; Using index
1 SIMPLE t1 index_merge key1,key2 key1,key2 5,5 NULL 77 Using intersect(key1,key2); Using where; Using index
select key1,key2 from t1 where key1=100 and key2=100;
key1 key2
100 100
......@@ -18,14 +18,14 @@ insert into t1 (key1, key2, key3, key4, filler1) values (100, 100, -1, -1, 'key1
insert into t1 (key1, key2, key3, key4, filler1) values (-1, -1, 100, 100, 'key4-key3');
explain select key1,key2,filler1 from t1 where key1=100 and key2=100;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 index_merge key1,key2 key1,key2 5,5 NULL 58 Using intersect(key1,key2); Using where
1 SIMPLE t1 index_merge key1,key2 key1,key2 5,5 NULL 77 Using intersect(key1,key2); Using where
select key1,key2,filler1 from t1 where key1=100 and key2=100;
key1 key2 filler1
100 100 key1-key2-key3-key4
100 100 key1-key2
explain select key1,key2 from t1 where key1=100 and key2=100;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 index_merge key1,key2 key1,key2 5,5 NULL 58 Using intersect(key1,key2); Using where; Using index
1 SIMPLE t1 index_merge key1,key2 key1,key2 5,5 NULL 77 Using intersect(key1,key2); Using where; Using index
select key1,key2 from t1 where key1=100 and key2=100;
key1 key2
100 100
......@@ -84,7 +84,7 @@ select key1,key2,key3,key4,filler1 from t1 where key1=100 and key2=100 or key3=1
key1 key2 key3 key4 filler1
explain select key1,key2 from t1 where key1=100 and key2=100;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 index_merge key1,key2 key1,key2 5,5 NULL 57 Using intersect(key1,key2); Using where; Using index
1 SIMPLE t1 index_merge key1,key2 key1,key2 5,5 NULL 76 Using intersect(key1,key2); Using where; Using index
select key1,key2 from t1 where key1=100 and key2=100;
key1 key2
insert into t1 (key1, key2, key3, key4, filler1) values (100, 100, 200, 200,'key1-key2-key3-key4-1');
......@@ -121,10 +121,10 @@ key1 key2 key3 key4 filler1
-1 -1 200 -1 key3
explain select * from t1 where st_a=1 and st_b=1;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 index_merge sta_swt12a,sta_swt1a,sta_swt2a,sta_swt21a,st_a,stb_swt1a_2b,stb_swt1b,st_b st_a,st_b 4,4 NULL 2637 Using intersect(st_a,st_b); Using where
1 SIMPLE t1 index_merge sta_swt12a,sta_swt1a,sta_swt2a,sta_swt21a,st_a,stb_swt1a_2b,stb_swt1b,st_b st_a,st_b 4,4 NULL 3515 Using intersect(st_a,st_b); Using where
explain select st_a,st_b from t1 where st_a=1 and st_b=1;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 index_merge sta_swt12a,sta_swt1a,sta_swt2a,sta_swt21a,st_a,stb_swt1a_2b,stb_swt1b,st_b st_a,st_b 4,4 NULL 2637 Using intersect(st_a,st_b); Using where; Using index
1 SIMPLE t1 index_merge sta_swt12a,sta_swt1a,sta_swt2a,sta_swt21a,st_a,stb_swt1a_2b,stb_swt1b,st_b st_a,st_b 4,4 NULL 3515 Using intersect(st_a,st_b); Using where; Using index
explain select st_a from t1 ignore index (st_a) where st_a=1 and st_b=1;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ref sta_swt12a,sta_swt1a,sta_swt2a,sta_swt21a,stb_swt1a_2b,stb_swt1b,st_b st_b 4 const 15093 Using where
......@@ -136,35 +136,35 @@ id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ref stb_swt1a_2b,stb_swt1b,st_b stb_swt1a_2b 8 const,const 3879 Using where
explain select * from t1 where st_a=1 and swt1a=1 and swt2a=1 and st_b=1 and swt1b=1 and swt2b=1;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 index_merge sta_swt12a,sta_swt1a,sta_swt2a,sta_swt21a,st_a,stb_swt1a_2b,stb_swt1b,st_b sta_swt12a,stb_swt1a_2b 12,12 NULL 44 Using intersect(sta_swt12a,stb_swt1a_2b); Using where
1 SIMPLE t1 index_merge sta_swt12a,sta_swt1a,sta_swt2a,sta_swt21a,st_a,stb_swt1a_2b,stb_swt1b,st_b sta_swt12a,stb_swt1a_2b 12,12 NULL 58 Using intersect(sta_swt12a,stb_swt1a_2b); Using where
explain select * from t1 ignore index (sta_swt21a, stb_swt1a_2b)
where st_a=1 and swt1a=1 and swt2a=1 and st_b=1 and swt1b=1 and swt2b=1;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 index_merge sta_swt12a,sta_swt1a,sta_swt2a,st_a,stb_swt1b,st_b sta_swt12a,stb_swt1b 12,8 NULL 44 Using intersect(sta_swt12a,stb_swt1b); Using where
1 SIMPLE t1 index_merge sta_swt12a,sta_swt1a,sta_swt2a,st_a,stb_swt1b,st_b sta_swt12a,stb_swt1b 12,8 NULL 58 Using intersect(sta_swt12a,stb_swt1b); Using where
explain select * from t1 ignore index (sta_swt21a, sta_swt12a, stb_swt1a_2b)
where st_a=1 and swt1a=1 and swt2a=1 and st_b=1 and swt1b=1 and swt2b=1;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 index_merge sta_swt1a,sta_swt2a,st_a,stb_swt1b,st_b sta_swt1a,sta_swt2a,stb_swt1b 8,8,8 NULL 43 Using intersect(sta_swt1a,sta_swt2a,stb_swt1b); Using where
1 SIMPLE t1 index_merge sta_swt1a,sta_swt2a,st_a,stb_swt1b,st_b sta_swt1a,sta_swt2a,stb_swt1b 8,8,8 NULL 57 Using intersect(sta_swt1a,sta_swt2a,stb_swt1b); Using where
explain select * from t1 ignore index (sta_swt21a, sta_swt12a, stb_swt1a_2b, stb_swt1b)
where st_a=1 and swt1a=1 and swt2a=1 and st_b=1 and swt1b=1 and swt2b=1;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 index_merge sta_swt1a,sta_swt2a,st_a,st_b sta_swt1a,sta_swt2a,st_b 8,8,4 NULL 168 Using intersect(sta_swt1a,sta_swt2a,st_b); Using where
1 SIMPLE t1 index_merge sta_swt1a,sta_swt2a,st_a,st_b sta_swt1a,sta_swt2a,st_b 8,8,4 NULL 223 Using intersect(sta_swt1a,sta_swt2a,st_b); Using where
explain select * from t1
where st_a=1 and swt1a=1 and swt2a=1 and st_b=1 and swt1b=1;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 index_merge sta_swt12a,sta_swt1a,sta_swt2a,sta_swt21a,st_a,stb_swt1a_2b,stb_swt1b,st_b sta_swt12a,stb_swt1a_2b 12,12 NULL 44 Using intersect(sta_swt12a,stb_swt1a_2b); Using where
1 SIMPLE t1 index_merge sta_swt12a,sta_swt1a,sta_swt2a,sta_swt21a,st_a,stb_swt1a_2b,stb_swt1b,st_b sta_swt12a,stb_swt1a_2b 12,12 NULL 58 Using intersect(sta_swt12a,stb_swt1a_2b); Using where
explain select * from t1
where st_a=1 and swt1a=1 and st_b=1 and swt1b=1 and swt1b=1;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 index_merge sta_swt12a,sta_swt1a,sta_swt2a,sta_swt21a,st_a,stb_swt1a_2b,stb_swt1b,st_b sta_swt1a,stb_swt1b 8,8 NULL 174 Using intersect(sta_swt1a,stb_swt1b); Using where
1 SIMPLE t1 index_merge sta_swt12a,sta_swt1a,sta_swt2a,sta_swt21a,st_a,stb_swt1a_2b,stb_swt1b,st_b sta_swt1a,stb_swt1b 8,8 NULL 232 Using intersect(sta_swt1a,stb_swt1b); Using where
explain select st_a from t1
where st_a=1 and swt1a=1 and st_b=1 and swt1b=1 and swt1b=1;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 index_merge sta_swt12a,sta_swt1a,sta_swt2a,sta_swt21a,st_a,stb_swt1a_2b,stb_swt1b,st_b sta_swt1a,stb_swt1b 8,8 NULL 174 Using intersect(sta_swt1a,stb_swt1b); Using where; Using index
1 SIMPLE t1 index_merge sta_swt12a,sta_swt1a,sta_swt2a,sta_swt21a,st_a,stb_swt1a_2b,stb_swt1b,st_b sta_swt1a,stb_swt1b 8,8 NULL 232 Using intersect(sta_swt1a,stb_swt1b); Using where; Using index
explain select st_a from t1
where st_a=1 and swt1a=1 and st_b=1 and swt1b=1 and swt1b=1;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 index_merge sta_swt12a,sta_swt1a,sta_swt2a,sta_swt21a,st_a,stb_swt1a_2b,stb_swt1b,st_b sta_swt1a,stb_swt1b 8,8 NULL 174 Using intersect(sta_swt1a,stb_swt1b); Using where; Using index
1 SIMPLE t1 index_merge sta_swt12a,sta_swt1a,sta_swt2a,sta_swt21a,st_a,stb_swt1a_2b,stb_swt1b,st_b sta_swt1a,stb_swt1b 8,8 NULL 232 Using intersect(sta_swt1a,stb_swt1b); Using where; Using index
drop table t0,t1;
create table t2 (
a char(10),
......
......@@ -233,8 +233,8 @@ fid AsText(Envelope(g))
120 POLYGON((0 0,10 0,10 10,0 10,0 0))
121 POLYGON((3 6,44 6,44 9,3 9,3 6))
explain extended select Dimension(g), GeometryType(g), IsEmpty(g), AsText(Envelope(g)) from gis_geometry;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE gis_geometry ALL NULL NULL NULL NULL 21
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE gis_geometry ALL NULL NULL NULL NULL 21 100.00
Warnings:
Note 1003 select dimension(`test`.`gis_geometry`.`g`) AS `Dimension(g)`,geometrytype(`test`.`gis_geometry`.`g`) AS `GeometryType(g)`,isempty(`test`.`gis_geometry`.`g`) AS `IsEmpty(g)`,astext(envelope(`test`.`gis_geometry`.`g`)) AS `AsText(Envelope(g))` from `test`.`gis_geometry`
SELECT fid, X(g) FROM gis_point ORDER by fid;
......@@ -250,8 +250,8 @@ fid Y(g)
103 20
104 20
explain extended select X(g),Y(g) FROM gis_point;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE gis_point ALL NULL NULL NULL NULL 4
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE gis_point ALL NULL NULL NULL NULL 4 100.00
Warnings:
Note 1003 select x(`test`.`gis_point`.`g`) AS `X(g)`,y(`test`.`gis_point`.`g`) AS `Y(g)` from `test`.`gis_point`
SELECT fid, AsText(StartPoint(g)) FROM gis_line ORDER by fid;
......@@ -285,8 +285,8 @@ fid IsClosed(g)
106 1
107 0
explain extended select AsText(StartPoint(g)),AsText(EndPoint(g)),GLength(g),NumPoints(g),AsText(PointN(g, 2)),IsClosed(g) FROM gis_line;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE gis_line ALL NULL NULL NULL NULL 3
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE gis_line ALL NULL NULL NULL NULL 3 100.00
Warnings:
Note 1003 select astext(startpoint(`test`.`gis_line`.`g`)) AS `AsText(StartPoint(g))`,astext(endpoint(`test`.`gis_line`.`g`)) AS `AsText(EndPoint(g))`,glength(`test`.`gis_line`.`g`) AS `GLength(g)`,numpoints(`test`.`gis_line`.`g`) AS `NumPoints(g)`,astext(pointn(`test`.`gis_line`.`g`,2)) AS `AsText(PointN(g, 2))`,isclosed(`test`.`gis_line`.`g`) AS `IsClosed(g)` from `test`.`gis_line`
SELECT fid, AsText(Centroid(g)) FROM gis_polygon ORDER by fid;
......@@ -315,8 +315,8 @@ fid AsText(InteriorRingN(g, 1))
109 LINESTRING(10 10,20 10,20 20,10 20,10 10)
110 NULL
explain extended select AsText(Centroid(g)),Area(g),AsText(ExteriorRing(g)),NumInteriorRings(g),AsText(InteriorRingN(g, 1)) FROM gis_polygon;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE gis_polygon ALL NULL NULL NULL NULL 3
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE gis_polygon ALL NULL NULL NULL NULL 3 100.00
Warnings:
Note 1003 select astext(centroid(`test`.`gis_polygon`.`g`)) AS `AsText(Centroid(g))`,area(`test`.`gis_polygon`.`g`) AS `Area(g)`,astext(exteriorring(`test`.`gis_polygon`.`g`)) AS `AsText(ExteriorRing(g))`,numinteriorrings(`test`.`gis_polygon`.`g`) AS `NumInteriorRings(g)`,astext(interiorringn(`test`.`gis_polygon`.`g`,1)) AS `AsText(InteriorRingN(g, 1))` from `test`.`gis_polygon`
SELECT fid, IsClosed(g) FROM gis_multi_line ORDER by fid;
......@@ -354,8 +354,8 @@ fid NumGeometries(g)
120 2
121 2
explain extended SELECT fid, NumGeometries(g) from gis_multi_point;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE gis_multi_point ALL NULL NULL NULL NULL 3
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE gis_multi_point ALL NULL NULL NULL NULL 3 100.00
Warnings:
Note 1003 select `test`.`gis_multi_point`.`fid` AS `fid`,numgeometries(`test`.`gis_multi_point`.`g`) AS `NumGeometries(g)` from `test`.`gis_multi_point`
SELECT fid, AsText(GeometryN(g, 2)) from gis_multi_point ORDER by fid;
......@@ -382,8 +382,8 @@ fid AsText(GeometryN(g, 1))
120 POINT(0 0)
121 POINT(44 6)
explain extended SELECT fid, AsText(GeometryN(g, 2)) from gis_multi_point;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE gis_multi_point ALL NULL NULL NULL NULL 3
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE gis_multi_point ALL NULL NULL NULL NULL 3 100.00
Warnings:
Note 1003 select `test`.`gis_multi_point`.`fid` AS `fid`,astext(geometryn(`test`.`gis_multi_point`.`g`,2)) AS `AsText(GeometryN(g, 2))` from `test`.`gis_multi_point`
SELECT g1.fid as first, g2.fid as second,
......@@ -401,9 +401,9 @@ Within(g1.g, g2.g) as w, Contains(g1.g, g2.g) as c, Overlaps(g1.g, g2.g) as o,
Equals(g1.g, g2.g) as e, Disjoint(g1.g, g2.g) as d, Touches(g1.g, g2.g) as t,
Intersects(g1.g, g2.g) as i, Crosses(g1.g, g2.g) as r
FROM gis_geometrycollection g1, gis_geometrycollection g2 ORDER BY first, second;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE g1 ALL NULL NULL NULL NULL 2 Using temporary; Using filesort
1 SIMPLE g2 ALL NULL NULL NULL NULL 2
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE g1 ALL NULL NULL NULL NULL 2 100.00 Using temporary; Using filesort
1 SIMPLE g2 ALL NULL NULL NULL NULL 2 100.00
Warnings:
Note 1003 select `test`.`g1`.`fid` AS `first`,`test`.`g2`.`fid` AS `second`,within(`test`.`g1`.`g`,`test`.`g2`.`g`) AS `w`,contains(`test`.`g1`.`g`,`test`.`g2`.`g`) AS `c`,overlaps(`test`.`g1`.`g`,`test`.`g2`.`g`) AS `o`,equals(`test`.`g1`.`g`,`test`.`g2`.`g`) AS `e`,disjoint(`test`.`g1`.`g`,`test`.`g2`.`g`) AS `d`,touches(`test`.`g1`.`g`,`test`.`g2`.`g`) AS `t`,intersects(`test`.`g1`.`g`,`test`.`g2`.`g`) AS `i`,crosses(`test`.`g1`.`g`,`test`.`g2`.`g`) AS `r` from `test`.`gis_geometrycollection` `g1` join `test`.`gis_geometrycollection` `g2` order by `test`.`g1`.`fid`,`test`.`g2`.`fid`
DROP TABLE gis_point, gis_line, gis_polygon, gis_multi_point, gis_multi_line, gis_multi_polygon, gis_geometrycollection, gis_geometry;
......
......@@ -57,13 +57,13 @@ a b c VALUES(a)
8 9 60 NULL
2 1 11 NULL
explain extended SELECT *, VALUES(a) FROM t1;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ALL NULL NULL NULL NULL 5
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t1 ALL NULL NULL NULL NULL 5 100.00
Warnings:
Note 1003 select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b`,`test`.`t1`.`c` AS `c`,values(`test`.`t1`.`a`) AS `VALUES(a)` from `test`.`t1`
explain extended select * from t1 where values(a);
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL Impossible WHERE
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL Impossible WHERE
Warnings:
Note 1003 select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b`,`test`.`t1`.`c` AS `c` from `test`.`t1`
DROP TABLE t1;
......
......@@ -764,3 +764,15 @@ natural join t5;
y c b a z
1 3 2 1 4
drop table t1, t2, t3, t4, t5;
create table t1 (a int);
insert into t1 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
create table t2 (a int, b int, filler char(100), key(a), key(b));
create table t3 (a int, b int, filler char(100), key(a), key(b));
insert into t2
select @a:= A.a + 10*(B.a + 10*C.a), @a, 'filler' from t1 A, t1 B, t1 C;
insert into t3 select * from t2 where a < 800;
explain select * from t2,t3 where t2.a < 200 and t2.b=t3.b;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t2 ALL a,b NULL NULL NULL 1000 Using where
1 SIMPLE t3 ref b b 5 test.t2.b 1 Using where
drop table t1, t2, t3;
This diff is collapsed.
......@@ -36,7 +36,7 @@ a a a a
explain select t1.*,t2.* from t1,t1 as t2 where t1.A=t2.B;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ALL a NULL NULL NULL 5
1 SIMPLE t2 ALL b NULL NULL NULL 4 Using where
1 SIMPLE t2 ALL b NULL NULL NULL 5 Using where
select t1.*,t2.* from t1,t1 as t2 where t1.A=t2.B order by binary t1.a,t2.a;
a b a b
A B a a
......
......@@ -346,11 +346,11 @@ t1 1 c_2 2 a A 5 NULL NULL BTREE
explain select * from t1,t2 where t1.a=t2.a;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t2 ALL a NULL NULL NULL 2
1 SIMPLE t1 ALL a NULL NULL NULL 4 Using where
1 SIMPLE t1 ALL a NULL NULL NULL 5 Using where
explain select * from t1,t2 force index(a) where t1.a=t2.a;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t2 ALL a NULL NULL NULL 2
1 SIMPLE t1 ALL a NULL NULL NULL 4 Using where
1 SIMPLE t1 ALL a NULL NULL NULL 5 Using where
explain select * from t1 force index(a),t2 force index(a) where t1.a=t2.a;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t2 ALL a NULL NULL NULL 2
......@@ -362,7 +362,7 @@ id select_type table type possible_keys key key_len ref rows Extra
explain select * from t1,t2 force index(c) where t1.a=t2.a;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t2 ALL NULL NULL NULL NULL 2
1 SIMPLE t1 ALL a NULL NULL NULL 4 Using where
1 SIMPLE t1 ALL a NULL NULL NULL 5 Using where
explain select * from t1 where a=0 or a=2;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ALL a NULL NULL NULL 5 Using where
......
This diff is collapsed.
......@@ -384,8 +384,8 @@ NULL NULL
2 1
3 1
explain extended select a, not(not(a)), not(a <= 2 and not(a)), not(a not like "1"), not (a not in (1,2)), not(a != 2) from t1 where not(not(a)) having not(not(a));
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 index NULL a 5 NULL 5 Using where; Using index
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t1 index NULL a 5 NULL 5 100.00 Using where; Using index
Warnings:
Note 1003 select `test`.`t1`.`a` AS `a`,(`test`.`t1`.`a` <> 0) AS `not(not(a))`,((`test`.`t1`.`a` > 2) or `test`.`t1`.`a`) AS `not(a <= 2 and not(a))`,(`test`.`t1`.`a` like _latin1'1') AS `not(a not like "1")`,(`test`.`t1`.`a` in (1,2)) AS `not (a not in (1,2))`,(`test`.`t1`.`a` = 2) AS `not(a != 2)` from `test`.`t1` where `test`.`t1`.`a` having `test`.`t1`.`a`
drop table t1;
......@@ -3,8 +3,8 @@ select null,\N,isnull(null),isnull(1/0),isnull(1/0 = null),ifnull(null,1),ifnull
NULL NULL isnull(null) isnull(1/0) isnull(1/0 = null) ifnull(null,1) ifnull(null,"TRUE") ifnull("TRUE","ERROR") 1/0 is null 1 is not null
NULL NULL 1 1 1 1 TRUE TRUE 1 1
explain extended select null,\N,isnull(null),isnull(1/0),isnull(1/0 = null),ifnull(null,1),ifnull(null,"TRUE"),ifnull("TRUE","ERROR"),1/0 is null,1 is not null;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL No tables used
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
Warnings:
Note 1003 select NULL AS `NULL`,NULL AS `NULL`,isnull(NULL) AS `isnull(null)`,isnull((1 / 0)) AS `isnull(1/0)`,isnull(((1 / 0) = NULL)) AS `isnull(1/0 = null)`,ifnull(NULL,1) AS `ifnull(null,1)`,ifnull(NULL,_latin1'TRUE') AS `ifnull(null,"TRUE")`,ifnull(_latin1'TRUE',_latin1'ERROR') AS `ifnull("TRUE","ERROR")`,isnull((1 / 0)) AS `1/0 is null`,(1 is not null) AS `1 is not null`
select 1 | NULL,1 & NULL,1+NULL,1-NULL;
......@@ -29,8 +29,8 @@ select 2 between null and 1,2 between 3 AND NULL,NULL between 1 and 2,2 between
2 between null and 1 2 between 3 AND NULL NULL between 1 and 2 2 between NULL and 3 2 between 1 AND null
0 0 NULL NULL NULL
explain extended select 2 between null and 1,2 between 3 AND NULL,NULL between 1 and 2,2 between NULL and 3, 2 between 1 AND null;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL No tables used
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
Warnings:
Note 1003 select (2 between NULL and 1) AS `2 between null and 1`,(2 between 3 and NULL) AS `2 between 3 AND NULL`,(NULL between 1 and 2) AS `NULL between 1 and 2`,(2 between NULL and 3) AS `2 between NULL and 3`,(2 between 1 and NULL) AS `2 between 1 AND null`
SELECT NULL AND NULL, 1 AND NULL, NULL AND 1, NULL OR NULL, 0 OR NULL, NULL OR 0;
......@@ -46,8 +46,8 @@ select inet_ntoa(null),inet_aton(null),inet_aton("122.256"),inet_aton("122.226."
inet_ntoa(null) inet_aton(null) inet_aton("122.256") inet_aton("122.226.") inet_aton("")
NULL NULL NULL NULL NULL
explain extended select inet_ntoa(null),inet_aton(null),inet_aton("122.256"),inet_aton("122.226."),inet_aton("");
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL No tables used
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
Warnings:
Note 1003 select inet_ntoa(NULL) AS `inet_ntoa(null)`,inet_aton(NULL) AS `inet_aton(null)`,inet_aton(_latin1'122.256') AS `inet_aton("122.256")`,inet_aton(_latin1'122.226.') AS `inet_aton("122.226.")`,inet_aton(_latin1'') AS `inet_aton("")`
create table t1 (x int);
......
......@@ -87,8 +87,8 @@ TV 2 NULL 200
TV NULL NULL 600
NULL NULL NULL 7785
explain extended select product, country_id , year, sum(profit) from t1 group by product, country_id, year with rollup;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ALL NULL NULL NULL NULL 15 Using filesort
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t1 ALL NULL NULL NULL NULL 15 100.00 Using filesort
Warnings:
Note 1003 select `test`.`t1`.`product` AS `product`,`test`.`t1`.`country_id` AS `country_id`,`test`.`t1`.`year` AS `year`,sum(`test`.`t1`.`profit`) AS `sum(profit)` from `test`.`t1` group by `test`.`t1`.`product`,`test`.`t1`.`country_id`,`test`.`t1`.`year` with rollup
select product, country_id , sum(profit) from t1 group by product desc, country_id with rollup;
......
......@@ -460,27 +460,67 @@ id select_type table partitions type possible_keys key key_len ref rows Extra
explain partitions select * from t2 where b = 4;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t2 p0,p1,p2,p3,p4 ref b b 5 const 76 Using where
explain extended select * from t2 where b = 6;
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t2 ref b b 5 const 76 100.00 Using where
Warnings:
Note 1003 select `test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b` from `test`.`t2` where (`test`.`t2`.`b` = 6)
explain partitions select * from t2 where b = 6;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t2 p0,p1,p2,p3,p4 ref b b 5 const 76 Using where
explain extended select * from t2 where b in (1,3,5);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t2 ALL b NULL NULL NULL 910 40.66 Using where
Warnings:
Note 1003 select `test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b` from `test`.`t2` where (`test`.`t2`.`b` in (1,3,5))
explain partitions select * from t2 where b in (1,3,5);
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t2 p0,p1,p2,p3,p4 ALL b NULL NULL NULL 910 Using where
explain extended select * from t2 where b in (2,4,6);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t2 ALL b NULL NULL NULL 910 25.05 Using where
Warnings:
Note 1003 select `test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b` from `test`.`t2` where (`test`.`t2`.`b` in (2,4,6))
explain partitions select * from t2 where b in (2,4,6);
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t2 p0,p1,p2,p3,p4 ALL b NULL NULL NULL 910 Using where
explain extended select * from t2 where b in (7,8,9);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t2 ALL b NULL NULL NULL 910 36.70 Using where
Warnings:
Note 1003 select `test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b` from `test`.`t2` where (`test`.`t2`.`b` in (7,8,9))
explain partitions select * from t2 where b in (7,8,9);
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t2 p0,p1,p2,p3,p4 ALL b NULL NULL NULL 910 Using where
explain extended select * from t2 where b > 5;
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t2 ALL b NULL NULL NULL 910 44.84 Using where
Warnings:
Note 1003 select `test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b` from `test`.`t2` where (`test`.`t2`.`b` > 5)
explain partitions select * from t2 where b > 5;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t2 p0,p1,p2,p3,p4 ALL b NULL NULL NULL 910 Using where
explain extended select * from t2 where b > 5 and b < 8;
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t2 ALL b NULL NULL NULL 910 22.09 Using where
Warnings:
Note 1003 select `test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b` from `test`.`t2` where ((`test`.`t2`.`b` > 5) and (`test`.`t2`.`b` < 8))
explain partitions select * from t2 where b > 5 and b < 8;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t2 p0,p1,p2,p3,p4 ALL b NULL NULL NULL 910 Using where
explain extended select * from t2 where b > 5 and b < 7;
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t2 range b b 5 NULL 76 100.00 Using where
Warnings:
Note 1003 select `test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b` from `test`.`t2` where ((`test`.`t2`.`b` > 5) and (`test`.`t2`.`b` < 7))
explain partitions select * from t2 where b > 5 and b < 7;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t2 p0,p1,p2,p3,p4 range b b 5 NULL 76 Using where
explain extended select * from t2 where b > 0 and b < 5;
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t2 ALL b NULL NULL NULL 910 41.65 Using where
Warnings:
Note 1003 select `test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b` from `test`.`t2` where ((`test`.`t2`.`b` > 0) and (`test`.`t2`.`b` < 5))
explain partitions select * from t2 where b > 0 and b < 5;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t2 p0,p1,p2,p3,p4 ALL b NULL NULL NULL 910 Using where
......
......@@ -230,8 +230,8 @@ CURRENT_USER()
select benchmark(1,1) from t1;
benchmark(1,1)
explain extended select benchmark(1,1) from t1;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 system NULL NULL NULL NULL 0 const row not found
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t1 system NULL NULL NULL NULL 0 0.00 const row not found
Warnings:
Note 1003 select sql_no_cache benchmark(1,1) AS `benchmark(1,1)` from `test`.`t1`
show status like "Qcache_queries_in_cache";
......
......@@ -46,8 +46,8 @@ select row(1,2,row(3,4)) IN (row(3,2,row(3,4)), row(1,2,row(3,NULL)));
row(1,2,row(3,4)) IN (row(3,2,row(3,4)), row(1,2,row(3,NULL)))
NULL
explain extended select row(1,2,row(3,4)) IN (row(3,2,row(3,4)), row(1,2,row(3,NULL)));
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL No tables used
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
Warnings:
Note 1003 select ((1,2,(3,4)) in ((3,2,(3,4)),(1,2,(3,NULL)))) AS `row(1,2,row(3,4)) IN (row(3,2,row(3,4)), row(1,2,row(3,NULL)))`
SELECT (1,2,3)=(0,NULL,3);
......
......@@ -22,8 +22,8 @@ select is_free_lock("lock"), is_used_lock("lock") = connection_id();
is_free_lock("lock") is_used_lock("lock") = connection_id()
0 1
explain extended select is_free_lock("lock"), is_used_lock("lock");
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL No tables used
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
Warnings:
Note 1003 select sql_no_cache is_free_lock(_latin1'lock') AS `is_free_lock("lock")`,is_used_lock(_latin1'lock') AS `is_used_lock("lock")`
select is_free_lock("lock2");
......
......@@ -8,8 +8,8 @@ select master_pos_wait('master-bin.999999',0,2);
master_pos_wait('master-bin.999999',0,2)
-1
explain extended select master_pos_wait('master-bin.999999',0,2);
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL No tables used
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
Warnings:
Note 1003 select sql_no_cache master_pos_wait(_latin1'master-bin.999999',0,2) AS `master_pos_wait('master-bin.999999',0,2)`
select master_pos_wait('master-bin.999999',0);
......
......@@ -1504,8 +1504,8 @@ select count(*),min(fld4),max(fld4),sum(fld1),avg(fld1),std(fld1),variance(fld1)
count(*) min(fld4) max(fld4) sum(fld1) avg(fld1) std(fld1) variance(fld1)
70 absentee vest 17788966 254128.0857 3272.5940 10709871.3069
explain extended select count(*),min(fld4),max(fld4),sum(fld1),avg(fld1),std(fld1),variance(fld1) from t2 where companynr = 34 and fld4<>"";
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t2 ALL NULL NULL NULL NULL 1199 Using where
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t2 ALL NULL NULL NULL NULL 1199 100.00 Using where
Warnings:
Note 1003 select count(0) AS `count(*)`,min(`test`.`t2`.`fld4`) AS `min(fld4)`,max(`test`.`t2`.`fld4`) AS `max(fld4)`,sum(`test`.`t2`.`fld1`) AS `sum(fld1)`,avg(`test`.`t2`.`fld1`) AS `avg(fld1)`,std(`test`.`t2`.`fld1`) AS `std(fld1)`,variance(`test`.`t2`.`fld1`) AS `variance(fld1)` from `test`.`t2` where ((`test`.`t2`.`companynr` = 34) and (`test`.`t2`.`fld4` <> _latin1''))
select companynr,count(*),min(fld4),max(fld4),sum(fld1),avg(fld1),std(fld1),variance(fld1) from t2 group by companynr limit 3;
......@@ -2363,7 +2363,7 @@ insert into t2 values (1,3), (2,3), (3,4), (4,4);
explain select * from t1 left join t2 on a=c where d in (4);
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t2 ref c,d d 5 const 2 Using where
1 SIMPLE t1 ALL a NULL NULL NULL 3 Using where
1 SIMPLE t1 ALL a NULL NULL NULL 4 Using where
select * from t1 left join t2 on a=c where d in (4);
a b c d
3 2 3 4
......@@ -2371,7 +2371,7 @@ a b c d
explain select * from t1 left join t2 on a=c where d = 4;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t2 ref c,d d 5 const 2 Using where
1 SIMPLE t1 ALL a NULL NULL NULL 3 Using where
1 SIMPLE t1 ALL a NULL NULL NULL 4 Using where
select * from t1 left join t2 on a=c where d = 4;
a b c d
3 2 3 4
......@@ -3353,7 +3353,7 @@ In next EXPLAIN, B.rows must be exactly 10:
explain select * from t2 A, t2 B where A.a=5 and A.b=5 and A.C<5
and B.a=5 and B.b=A.e and (B.b =1 or B.b = 3 or B.b=5);
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE A range PRIMARY PRIMARY 12 NULL 3 Using where
1 SIMPLE A range PRIMARY PRIMARY 12 NULL 4 Using where
1 SIMPLE B ref PRIMARY PRIMARY 8 const,test.A.e 10
drop table t1, t2;
CREATE TABLE t1 (a int PRIMARY KEY, b int, INDEX(b));
......
......@@ -1391,7 +1391,7 @@ id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t4 eq_ref PRIMARY PRIMARY 1 test.t2.companynr 1
explain select companynr,companyname from t4 left join t2 using (companynr) where companynr > 0;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t4 ALL PRIMARY NULL NULL NULL 12 Using where
1 SIMPLE t4 ALL PRIMARY NULL NULL NULL 11 Using where
1 SIMPLE t2 ALL NULL NULL NULL NULL 1199
explain select companynr,companyname from t4 left join t2 using (companynr) where companynr > 0 or companynr < 0;
id select_type table type possible_keys key key_len ref rows Extra
......@@ -1399,7 +1399,7 @@ id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t2 ALL NULL NULL NULL NULL 1199
explain select companynr,companyname from t4 left join t2 using (companynr) where companynr > 0 and companynr > 0;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t4 ALL PRIMARY NULL NULL NULL 12 Using where
1 SIMPLE t4 ALL PRIMARY NULL NULL NULL 11 Using where
1 SIMPLE t2 ALL NULL NULL NULL NULL 1199
explain select t2.companynr,companyname from t4 left join t2 using (companynr) where t2.companynr > 0 or t2.companynr is null;
id select_type table type possible_keys key key_len ref rows Extra
......@@ -1415,7 +1415,7 @@ id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t2 ALL NULL NULL NULL NULL 1199 Using where
explain select companynr,companyname from t4 left join t2 using (companynr) where companynr > 0 or companynr is null;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t4 ALL PRIMARY NULL NULL NULL 12 Using where
1 SIMPLE t4 ALL PRIMARY NULL NULL NULL 11 Using where
1 SIMPLE t2 ALL NULL NULL NULL NULL 1199
explain select companynr,companyname from t4 left join t2 using (companynr) where companynr > 0 or companynr < 0 or companynr > 0;
id select_type table type possible_keys key key_len ref rows Extra
......@@ -1505,8 +1505,8 @@ select count(*),min(fld4),max(fld4),sum(fld1),avg(fld1),std(fld1),variance(fld1)
count(*) min(fld4) max(fld4) sum(fld1) avg(fld1) std(fld1) variance(fld1)
70 absentee vest 17788966 254128.0857 3272.5940 10709871.3069
explain extended select count(*),min(fld4),max(fld4),sum(fld1),avg(fld1),std(fld1),variance(fld1) from t2 where companynr = 34 and fld4<>"";
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t2 ALL NULL NULL NULL NULL 1199 Using where
id select_type table type possible_keys key key_len ref in_rows rows Extra
1 SIMPLE t2 ALL NULL NULL NULL NULL 1199 1199 Using where
Warnings:
Note 1003 select count(0) AS `count(*)`,min(`test`.`t2`.`fld4`) AS `min(fld4)`,max(`test`.`t2`.`fld4`) AS `max(fld4)`,sum(`test`.`t2`.`fld1`) AS `sum(fld1)`,avg(`test`.`t2`.`fld1`) AS `avg(fld1)`,std(`test`.`t2`.`fld1`) AS `std(fld1)`,variance(`test`.`t2`.`fld1`) AS `variance(fld1)` from `test`.`t2` where ((`test`.`t2`.`companynr` = 34) and (`test`.`t2`.`fld4` <> _latin1''))
select companynr,count(*),min(fld4),max(fld4),sum(fld1),avg(fld1),std(fld1),variance(fld1) from t2 group by companynr limit 3;
......
......@@ -1394,7 +1394,7 @@ id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t4 eq_ref PRIMARY PRIMARY 1 test.t2.companynr 1
explain select companynr,companyname from t4 left join t2 using (companynr) where companynr > 0;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t4 ALL PRIMARY NULL NULL NULL 12 Using where
1 SIMPLE t4 ALL PRIMARY NULL NULL NULL 11 Using where
1 SIMPLE t2 ALL NULL NULL NULL NULL 1199
explain select companynr,companyname from t4 left join t2 using (companynr) where companynr > 0 or companynr < 0;
id select_type table type possible_keys key key_len ref rows Extra
......@@ -1402,7 +1402,7 @@ id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t2 ALL NULL NULL NULL NULL 1199
explain select companynr,companyname from t4 left join t2 using (companynr) where companynr > 0 and companynr > 0;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t4 ALL PRIMARY NULL NULL NULL 12 Using where
1 SIMPLE t4 ALL PRIMARY NULL NULL NULL 11 Using where
1 SIMPLE t2 ALL NULL NULL NULL NULL 1199
explain select t2.companynr,companyname from t4 left join t2 using (companynr) where t2.companynr > 0 or t2.companynr is null;
id select_type table type possible_keys key key_len ref rows Extra
......@@ -1418,7 +1418,7 @@ id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t2 ALL NULL NULL NULL NULL 1199 Using where
explain select companynr,companyname from t4 left join t2 using (companynr) where companynr > 0 or companynr is null;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t4 ALL PRIMARY NULL NULL NULL 12 Using where
1 SIMPLE t4 ALL PRIMARY NULL NULL NULL 11 Using where
1 SIMPLE t2 ALL NULL NULL NULL NULL 1199
explain select companynr,companyname from t4 left join t2 using (companynr) where companynr > 0 or companynr < 0 or companynr > 0;
id select_type table type possible_keys key key_len ref rows Extra
......@@ -1508,8 +1508,8 @@ select count(*),min(fld4),max(fld4),sum(fld1),avg(fld1),std(fld1),variance(fld1)
count(*) min(fld4) max(fld4) sum(fld1) avg(fld1) std(fld1) variance(fld1)
70 absentee vest 17788966 254128.0857 3272.5940 10709871.3069
explain extended select count(*),min(fld4),max(fld4),sum(fld1),avg(fld1),std(fld1),variance(fld1) from t2 where companynr = 34 and fld4<>"";
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t2 ALL NULL NULL NULL NULL 1199 Using where
id select_type table type possible_keys key key_len ref in_rows rows Extra
1 SIMPLE t2 ALL NULL NULL NULL NULL 1199 1199 Using where
Warnings:
Note 1003 select count(0) AS `count(*)`,min(`test`.`t2`.`fld4`) AS `min(fld4)`,max(`test`.`t2`.`fld4`) AS `max(fld4)`,sum(`test`.`t2`.`fld1`) AS `sum(fld1)`,avg(`test`.`t2`.`fld1`) AS `avg(fld1)`,std(`test`.`t2`.`fld1`) AS `std(fld1)`,variance(`test`.`t2`.`fld1`) AS `variance(fld1)` from `test`.`t2` where ((`test`.`t2`.`companynr` = 34) and (`test`.`t2`.`fld4` <> _latin1''))
select companynr,count(*),min(fld4),max(fld4),sum(fld1),avg(fld1),std(fld1),variance(fld1) from t2 group by companynr limit 3;
......
This diff is collapsed.
......@@ -514,8 +514,8 @@ explain extended select
charset(load_file('../../std_data/words.dat')),
collation(load_file('../../std_data/words.dat')),
coercibility(load_file('../../std_data/words.dat'));
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL No tables used
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
Warnings:
Note 1003 select sql_no_cache charset(load_file(_latin1'../../std_data/words.dat')) AS `charset(load_file('../../std_data/words.dat'))`,collation(load_file(_latin1'../../std_data/words.dat')) AS `collation(load_file('../../std_data/words.dat'))`,coercibility(load_file(_latin1'../../std_data/words.dat')) AS `coercibility(load_file('../../std_data/words.dat'))`
update t1 set imagem=load_file('../../std_data/words.dat') where id=1;
......
......@@ -83,10 +83,10 @@ a b
(select a,b from t1 limit 2) union all (select a,b from t2 order by a limit 1) order by t1.b;
ERROR 42000: Table 't1' from one of the SELECTs cannot be used in global ORDER clause
explain extended (select a,b from t1 limit 2) union all (select a,b from t2 order by a limit 1) order by b desc;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 4
2 UNION t2 ALL NULL NULL NULL NULL 4 Using filesort
NULL UNION RESULT <union1,2> ALL NULL NULL NULL NULL NULL Using filesort
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 4 100.00
2 UNION t2 ALL NULL NULL NULL NULL 4 100.00 Using filesort
NULL UNION RESULT <union1,2> ALL NULL NULL NULL NULL NULL NULL Using filesort
Warnings:
Note 1003 (select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from `test`.`t1` limit 2) union all (select `test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b` from `test`.`t2` order by `test`.`t2`.`a` limit 1) order by `b` desc
(select sql_calc_found_rows a,b from t1 limit 2) union all (select a,b from t2 order by a) limit 2;
......@@ -475,10 +475,10 @@ create table t2 (a int not null primary key auto_increment, b int);
insert into t1 (b) values (1),(2),(2),(3);
insert into t2 (b) values (10),(11),(12),(13);
explain extended (select * from t1 where a=1) union (select * from t2 where a=1);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 const PRIMARY PRIMARY 4 const 1
2 UNION t2 const PRIMARY PRIMARY 4 const 1
NULL UNION RESULT <union1,2> ALL NULL NULL NULL NULL NULL
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 const PRIMARY PRIMARY 4 const 1 100.00
2 UNION t2 const PRIMARY PRIMARY 4 const 1 100.00
NULL UNION RESULT <union1,2> ALL NULL NULL NULL NULL NULL NULL
Warnings:
Note 1003 (select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from `test`.`t1` where (`test`.`t1`.`a` = 1)) union (select `test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b` from `test`.`t2` where (`test`.`t2`.`a` = 1))
(select * from t1 where a=5) union (select * from t2 where a=1);
......@@ -500,7 +500,7 @@ explain (select * from t1 where a=1 and b=10) union (select straight_join t1.a,t
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
2 UNION t1 index PRIMARY PRIMARY 4 NULL 4 Using index
2 UNION t2 index PRIMARY PRIMARY 4 NULL 3 Using where; Using index
2 UNION t2 index PRIMARY PRIMARY 4 NULL 4 Using where; Using index
NULL UNION RESULT <union1,2> ALL NULL NULL NULL NULL NULL
explain (select * from t1 where a=1) union (select * from t1 where b=1);
id select_type table type possible_keys key key_len ref rows Extra
......
......@@ -12,8 +12,8 @@ create table t1 (ID int(8) unsigned zerofill not null auto_increment,UNIQ bigint
insert into t1 set UNIQ=0x38afba1d73e6a18a;
insert into t1 set UNIQ=123;
explain extended select * from t1 where UNIQ=0x38afba1d73e6a18a;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 const UNIQ UNIQ 8 const 1
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t1 const UNIQ UNIQ 8 const 1 100.00
Warnings:
Note 1003 select `test`.`t1`.`ID` AS `ID`,`test`.`t1`.`UNIQ` AS `UNIQ` from `test`.`t1` where 1
drop table t1;
......
......@@ -72,8 +72,8 @@ select @t1:=(@t2:=1)+@t3:=4,@t1,@t2,@t3;
@t1:=(@t2:=1)+@t3:=4 @t1 @t2 @t3
5 5 1 4
explain extended select @t1:=(@t2:=1)+@t3:=4,@t1,@t2,@t3;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL No tables used
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
Warnings:
Note 1003 select sql_no_cache (@t1:=((@t2:=1) + (@t3:=4))) AS `@t1:=(@t2:=1)+@t3:=4`,(@t1) AS `@t1`,(@t2) AS `@t2`,(@t3) AS `@t3`
select @t5;
......@@ -132,16 +132,16 @@ select last_insert_id(345);
last_insert_id(345)
345
explain extended select last_insert_id(345);
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL No tables used
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
Warnings:
Note 1003 select sql_no_cache last_insert_id(345) AS `last_insert_id(345)`
select @@IDENTITY,last_insert_id(), @@identity;
@@IDENTITY last_insert_id() @@identity
345 345 345
explain extended select @@IDENTITY,last_insert_id(), @@identity;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL No tables used
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
Warnings:
Note 1003 select sql_no_cache 345 AS `@@IDENTITY`,last_insert_id() AS `last_insert_id()`,345 AS `@@identity`
set big_tables=OFF, big_tables=ON, big_tables=0, big_tables=1, big_tables="OFF", big_tables="ON";
......
......@@ -48,8 +48,8 @@ ERROR 42S22: Unknown column 'b' in 'field list'
select v1.b from v1;
ERROR 42S22: Unknown column 'v1.b' in 'field list'
explain extended select c from v1;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 5
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 5 100.00
Warnings:
Note 1003 select (`test`.`t1`.`b` + 1) AS `c` from `test`.`t1`
create algorithm=temptable view v2 (c) as select b+1 from t1;
......@@ -64,9 +64,9 @@ c
6
11
explain extended select c from v2;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY <derived2> ALL NULL NULL NULL NULL 5
2 DERIVED t1 ALL NULL NULL NULL NULL 5
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY <derived2> ALL NULL NULL NULL NULL 5 100.00
2 DERIVED t1 ALL NULL NULL NULL NULL 5 100.00
Warnings:
Note 1003 select `v2`.`c` AS `c` from `test`.`v2`
create view v3 (c) as select a+1 from v1;
......@@ -82,8 +82,8 @@ c
7
12
explain extended select c from v3;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 5
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 5 100.00
Warnings:
Note 1003 select ((`test`.`t1`.`b` + 1) + 1) AS `c` from `test`.`t1`
create algorithm=temptable view v4 (c) as select c+1 from v2;
......@@ -95,10 +95,10 @@ c
7
12
explain extended select c from v4;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY <derived2> ALL NULL NULL NULL NULL 5
2 DERIVED <derived3> ALL NULL NULL NULL NULL 5
3 DERIVED t1 ALL NULL NULL NULL NULL 5
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY <derived2> ALL NULL NULL NULL NULL 5 100.00
2 DERIVED <derived3> ALL NULL NULL NULL NULL 5 100.00
3 DERIVED t1 ALL NULL NULL NULL NULL 5 100.00
Warnings:
Note 1003 select `v4`.`c` AS `c` from `test`.`v4`
create view v5 (c) as select c+1 from v2;
......@@ -110,9 +110,9 @@ c
7
12
explain extended select c from v5;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY <derived3> ALL NULL NULL NULL NULL 5
3 DERIVED t1 ALL NULL NULL NULL NULL 5
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY <derived3> ALL NULL NULL NULL NULL 5 100.00
3 DERIVED t1 ALL NULL NULL NULL NULL 5 100.00
Warnings:
Note 1003 select (`v2`.`c` + 1) AS `c` from `test`.`v2`
create algorithm=temptable view v6 (c) as select c+1 from v1;
......@@ -124,9 +124,9 @@ c
7
12
explain extended select c from v6;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY <derived2> ALL NULL NULL NULL NULL 5
2 DERIVED t1 ALL NULL NULL NULL NULL 5
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY <derived2> ALL NULL NULL NULL NULL 5 100.00
2 DERIVED t1 ALL NULL NULL NULL NULL 5 100.00
Warnings:
Note 1003 select `v6`.`c` AS `c` from `test`.`v6`
show tables;
......@@ -375,8 +375,8 @@ c
20
30
explain extended select * from v1;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 5 Using where
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 5 100.00 Using where
Warnings:
Note 1003 select `test`.`t1`.`b` AS `c` from `test`.`t1` where (`test`.`t1`.`a` < 3)
update v1 set c=c+1;
......@@ -1390,10 +1390,10 @@ a a b
2 2 NULL
4 NULL NULL
explain extended select * from t3 left join v3 on (t3.a = v3.a);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t3 ALL NULL NULL NULL NULL 3
1 PRIMARY t1 ALL NULL NULL NULL NULL 3
1 PRIMARY t2 ALL NULL NULL NULL NULL 2
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t3 ALL NULL NULL NULL NULL 3 100.00
1 PRIMARY t1 ALL NULL NULL NULL NULL 3 100.00
1 PRIMARY t2 ALL NULL NULL NULL NULL 2 100.00
Warnings:
Note 1003 select `test`.`t3`.`a` AS `a`,`test`.`t1`.`a` AS `a`,`test`.`t2`.`a` AS `b` from `test`.`t3` left join (`test`.`t1` left join `test`.`t2` on((`test`.`t1`.`a` = `test`.`t2`.`a`))) on((`test`.`t3`.`a` = `test`.`t1`.`a`)) where 1
create view v1 (a) as select a from t1;
......@@ -1405,10 +1405,10 @@ a a b
2 2 NULL
4 NULL NULL
explain extended select * from t3 left join v4 on (t3.a = v4.a);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t3 ALL NULL NULL NULL NULL 3
1 PRIMARY t1 ALL NULL NULL NULL NULL 3
1 PRIMARY t2 ALL NULL NULL NULL NULL 2
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t3 ALL NULL NULL NULL NULL 3 100.00
1 PRIMARY t1 ALL NULL NULL NULL NULL 3 100.00
1 PRIMARY t2 ALL NULL NULL NULL NULL 2 100.00
Warnings:
Note 1003 select `test`.`t3`.`a` AS `a`,`test`.`t1`.`a` AS `a`,`test`.`t2`.`a` AS `b` from `test`.`t3` left join (`test`.`t1` left join (`test`.`t2`) on((`test`.`t1`.`a` = `test`.`t2`.`a`))) on((`test`.`t3`.`a` = `test`.`t1`.`a`)) where 1
prepare stmt1 from "select * from t3 left join v4 on (t3.a = v4.a);";
......
-- source include/have_cp1250_ch.inc
--disable_warnings
drop table if exists t1;
--enable_warnings
SHOW COLLATION LIKE 'cp1250_czech_cs';
......
......@@ -8,8 +8,8 @@ drop table if exists t1;
create table t1 (a varchar(10), key(a));
insert into t1 values ("a"),("abc"),("abcd"),("hello"),("test");
explain select * from t1 where a like 'abc%';
explain select * from t1 where a like concat('abc','%');
explain extended select * from t1 where a like 'abc%';
explain extended select * from t1 where a like concat('abc','%');
select * from t1 where a like "abc%";
select * from t1 where a like concat("abc","%");
select * from t1 where a like "ABC%";
......
......@@ -489,7 +489,7 @@ select a1,a2,b from t2 where (a1 > 'a') and (a2 > 'a') and (b = 'c') group by a1
-- plans
explain select distinct a1,a2,b from t1;
explain select distinct a1,a2,b from t1 where (a2 >= 'b') and (b = 'a');
explain select distinct a1,a2,b,c from t1 where (a2 >= 'b') and (b = 'a') and (c = 'i121');
explain extended select distinct a1,a2,b,c from t1 where (a2 >= 'b') and (b = 'a') and (c = 'i121');
explain select distinct a1,a2,b from t1 where (a1 > 'a') and (a2 > 'a') and (b = 'c');
explain select distinct b from t1 where (a2 >= 'b') and (b = 'a');
......@@ -497,7 +497,7 @@ explain select distinct b from t1 where (a2 >= 'b') and (b = 'a');
explain select distinct a1,a2,b from t2;
--replace_column 9 #
explain select distinct a1,a2,b from t2 where (a2 >= 'b') and (b = 'a');
explain select distinct a1,a2,b,c from t2 where (a2 >= 'b') and (b = 'a') and (c = 'i121');
explain extended select distinct a1,a2,b,c from t2 where (a2 >= 'b') and (b = 'a') and (c = 'i121');
--replace_column 9 #
explain select distinct a1,a2,b from t2 where (a1 > 'a') and (a2 > 'a') and (b = 'c');
explain select distinct b from t2 where (a2 >= 'b') and (b = 'a');
......@@ -568,9 +568,9 @@ select distinct b from t2 where (a2 >= 'b') and (b = 'a') group by a1,a2,b;
explain select count(distinct a1,a2,b) from t1 where (a2 >= 'b') and (b = 'a');
explain select count(distinct a1,a2,b,c) from t1 where (a2 >= 'b') and (b = 'a') and (c = 'i121');
explain select count(distinct a1,a2,b) from t1 where (a1 > 'a') and (a2 > 'a') and (b = 'c');
explain extended select count(distinct a1,a2,b) from t1 where (a1 > 'a') and (a2 > 'a') and (b = 'c');
explain select count(distinct b) from t1 where (a2 >= 'b') and (b = 'a');
explain select ord(a1) + count(distinct a1,a2,b) from t1 where (a1 > 'a') and (a2 > 'a');
explain extended select ord(a1) + count(distinct a1,a2,b) from t1 where (a1 > 'a') and (a2 > 'a');
select count(distinct a1,a2,b) from t1 where (a2 >= 'b') and (b = 'a');
select count(distinct a1,a2,b,c) from t1 where (a2 >= 'b') and (b = 'a') and (c = 'i121');
......@@ -607,19 +607,19 @@ explain select a1,a2,b,d from t1 group by a1,a2,b;
-- predicate that references an attribute that is after the MIN/MAX argument
-- in the index
explain select a1,a2,min(b),max(b) from t1
explain extended select a1,a2,min(b),max(b) from t1
where (a1 = 'b' or a1 = 'd' or a1 = 'a' or a1 = 'c') and (a2 > 'a') and (c > 'a111') group by a1,a2;
-- predicate that references a non-indexed attribute
explain select a1,a2,b,min(c),max(c) from t1
explain extended select a1,a2,b,min(c),max(c) from t1
where (a1 = 'b' or a1 = 'd' or a1 = 'a' or a1 = 'c') and (a2 > 'a') and (d > 'xy2') group by a1,a2,b;
explain select a1,a2,b,c from t1
explain extended select a1,a2,b,c from t1
where (a1 = 'b' or a1 = 'd' or a1 = 'a' or a1 = 'c') and (a2 > 'a') and (d > 'xy2') group by a1,a2,b,c;
-- non-equality predicate for a non-group select attribute
explain select a1,a2,b,max(c),min(c) from t2 where (a2 = 'a') and (b = 'b') or (b < 'b') group by a1;
explain select a1,a2,b from t1 where (a1 = 'b' or a1 = 'd' or a1 = 'a' or a1 = 'c') and (a2 > 'a') and (c > 'a111') group by a1,a2,b;
explain extended select a1,a2,b from t1 where (a1 = 'b' or a1 = 'd' or a1 = 'a' or a1 = 'c') and (a2 > 'a') and (c > 'a111') group by a1,a2,b;
-- non-group field with an equality predicate that references a keypart after the
-- MIN/MAX argument
......@@ -638,8 +638,8 @@ explain select a1, a2, b, c, min(d), max(d) from t1 group by a1,a2,b,c;
-- other aggregate functions than MIN/MAX
explain select a1,a2,count(a2) from t1 group by a1,a2,b;
explain select a1,a2,count(a2) from t1 where (a1 > 'a') group by a1,a2,b;
explain select sum(ord(a1)) from t1 where (a1 > 'a') group by a1,a2,b;
explain extended select a1,a2,count(a2) from t1 where (a1 > 'a') group by a1,a2,b;
explain extended select sum(ord(a1)) from t1 where (a1 > 'a') group by a1,a2,b;
#
......
......@@ -97,7 +97,6 @@ select count(*) from t1;
# One row results tests for cases where a single row matches all conditions
explain select key1,key2 from t1 where key1=100 and key2=100;
select key1,key2 from t1 where key1=100 and key2=100;
explain select key1,key2,key3,key4,filler1 from t1 where key1=100 and key2=100 or key3=100 and key4=100;
select key1,key2,key3,key4,filler1 from t1 where key1=100 and key2=100 or key3=100 and key4=100;
......
......@@ -63,7 +63,7 @@ select pk1,pk2 from t1 where key1 = 10 and key2=10 and 2*pk1+1 < 2*96+1;
# Verify that CPK is always used for index intersection scans
# (this is because it is used as a filter, not for retrieval)
explain select * from t1 where badkey=1 and key1=10;
--replace_result 38 ROWS 37 ROWS
--replace_column 9 ROWS
explain select * from t1 where pk1 < 7500 and key1 = 10;
# Verify that keys with 'tails' of PK members are ok.
......
......@@ -590,3 +590,22 @@ select * from ((t3 natural join (t1 natural join t2)) natural join t4)
drop table t1, t2, t3, t4, t5;
# End of tests for WL#2486 - natural/using join
#
# BUG#14940: Make E(#rows) from "range" access be re-used by range optimizer
#
create table t1 (a int);
insert into t1 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
create table t2 (a int, b int, filler char(100), key(a), key(b));
create table t3 (a int, b int, filler char(100), key(a), key(b));
insert into t2
select @a:= A.a + 10*(B.a + 10*C.a), @a, 'filler' from t1 A, t1 B, t1 C;
insert into t3 select * from t2 where a < 800;
# The order of tables must be t2,t3:
explain select * from t2,t3 where t2.a < 200 and t2.b=t3.b;
drop table t1, t2, t3;
......@@ -407,13 +407,29 @@ explain partitions select * from t2 where a = 833;
explain partitions select * from t2 where (a = 100 OR a = 900);
explain partitions select * from t2 where (a > 100 AND a < 600);
explain partitions select * from t2 where b = 4;
explain extended select * from t2 where b = 6;
explain partitions select * from t2 where b = 6;
explain extended select * from t2 where b in (1,3,5);
explain partitions select * from t2 where b in (1,3,5);
explain extended select * from t2 where b in (2,4,6);
explain partitions select * from t2 where b in (2,4,6);
explain extended select * from t2 where b in (7,8,9);
explain partitions select * from t2 where b in (7,8,9);
explain extended select * from t2 where b > 5;
explain partitions select * from t2 where b > 5;
explain extended select * from t2 where b > 5 and b < 8;
explain partitions select * from t2 where b > 5 and b < 8;
explain extended select * from t2 where b > 5 and b < 7;
explain partitions select * from t2 where b > 5 and b < 7;
explain extended select * from t2 where b > 0 and b < 5;
explain partitions select * from t2 where b > 0 and b < 5;
flush status;
......
This diff is collapsed.
......@@ -852,6 +852,11 @@ int THD::send_explain_fields(select_result *result)
item->maybe_null=1;
field_list.push_back(item= new Item_return_int("rows", 10,
MYSQL_TYPE_LONGLONG));
if (lex->describe & DESCRIBE_EXTENDED)
{
field_list.push_back(item= new Item_float("filtered", 0.1234, 2, 4));
item->maybe_null=1;
}
item->maybe_null= 1;
field_list.push_back(new Item_empty_string("Extra", 255, cs));
return (result->send_fields(field_list,
......
......@@ -2074,6 +2074,7 @@ make_join_statistics(JOIN *join, TABLE_LIST *tables, COND *conds,
s->key_dependent= 0;
if (tables->schema_table)
table->file->stats.records= 2;
table->quick_condition_rows= table->file->records();
s->on_expr_ref= &tables->on_expr;
if (*s->on_expr_ref)
......@@ -3754,14 +3755,24 @@ best_access_path(JOIN *join,
{ // Check full join
ha_rows rnd_records= s->found_records;
/*
If there is a restriction on the table, assume that 25% of the
rows can be skipped on next part.
This is to force tables that this table depends on before this
table
If there is a filtering condition on the table (i.e. ref analyzer found
at least one "table.keyXpartY= exprZ", where exprZ refers only to tables
preceding this table in the join order we're now considering), then
assume that 25% of the rows will be filtered out by this condition.
This heuristic is supposed to force tables used in exprZ to be before
this table in join order.
*/
if (found_constraint)
rnd_records-= rnd_records/4;
/*
If applicable, get a more accurate estimate. Don't use the two
heuristics at once.
*/
if (s->table->quick_condition_rows != s->found_records)
rnd_records= s->table->quick_condition_rows;
/*
Range optimizer never proposes a RANGE if it isn't better
than FULL: so if RANGE is present, it's always preferred to FULL.
......@@ -3773,6 +3784,10 @@ best_access_path(JOIN *join,
For each record we:
- read record range through 'quick'
- skip rows which does not satisfy WHERE constraints
TODO:
We take into account possible use of join cache for ALL/index
access (see first else-branch below), but we don't take it into
account here for range/index_merge access. Find out why this is so.
*/
tmp= record_count *
(s->quick->read_time +
......@@ -4342,6 +4357,8 @@ best_extension_by_limited_search(JOIN *join,
return;
DBUG_ENTER("best_extension_by_limited_search");
DBUG_EXECUTE("opt", print_plan(join, idx, read_time, record_count, idx,
"SOFAR:"););
/*
'join' is a partial plan with lower cost than the best plan so far,
......@@ -14065,6 +14082,8 @@ static void select_describe(JOIN *join, bool need_tmp_table, bool need_order,
item_list.push_back(item_null);
if (join->thd->lex->describe & DESCRIBE_PARTITIONS)
item_list.push_back(item_null);
if (join->thd->lex->describe & DESCRIBE_EXTENDED)
item_list.push_back(item_null);
item_list.push_back(new Item_string(message,strlen(message),cs));
if (result->send_data(item_list))
......@@ -14110,6 +14129,9 @@ static void select_describe(JOIN *join, bool need_tmp_table, bool need_order,
}
item_list.push_back(new Item_string(table_name_buffer, len, cs));
}
/* partitions */
if (join->thd->lex->describe & DESCRIBE_PARTITIONS)
item_list.push_back(item_null);
/* type */
item_list.push_back(new Item_string(join_type_str[JT_ALL],
strlen(join_type_str[JT_ALL]),
......@@ -14122,6 +14144,9 @@ static void select_describe(JOIN *join, bool need_tmp_table, bool need_order,
item_list.push_back(item_null);
/* ref */
item_list.push_back(item_null);
/* in_rows */
if (join->thd->lex->describe & DESCRIBE_EXTENDED)
item_list.push_back(item_null);
/* rows */
item_list.push_back(item_null);
/* extra */
......@@ -14277,10 +14302,33 @@ static void select_describe(JOIN *join, bool need_tmp_table, bool need_order,
item_list.push_back(item_null);
item_list.push_back(item_null);
}
/* Add "rows" field to item_list. */
item_list.push_back(new Item_int((longlong) (ulonglong)
join->best_positions[i]. records_read,
21));
ha_rows examined_rows;
if (tab->select && tab->select->quick)
examined_rows= tab->select->quick->records;
else if (tab->type == JT_NEXT || tab->type == JT_ALL)
examined_rows= tab->table->file->records();
else
examined_rows=(ha_rows)join->best_positions[i].records_read;
item_list.push_back(new Item_int((longlong) (ulonglong) examined_rows,
21));
/* Add "filtered" field to item_list. */
if (join->thd->lex->describe & DESCRIBE_EXTENDED)
{
Item_float *filtered;
float f;
if (examined_rows)
f= 100.0 * join->best_positions[i].records_read / examined_rows;
else
f= 0.0;
item_list.push_back((filtered= new Item_float(f)));
filtered->decimals= 2;
}
/* Build "Extra" field and add it to item_list. */
my_bool key_read=table->key_read;
if ((tab->type == JT_NEXT || tab->type == JT_CONST) &&
......
......@@ -128,7 +128,21 @@ typedef struct st_join_table {
key_map checked_keys; /* Keys checked in find_best */
key_map needed_reg;
key_map keys; /* all keys with can be used */
ha_rows records,found_records,read_time;
/* Either #rows in the table or 1 for const table. */
ha_rows records;
/*
Number of records that will be scanned (yes scanned, not returned) by the
best 'independent' access method, i.e. table scan or QUICK_*_SELECT)
*/
ha_rows found_records;
/*
Cost of accessing the table using "ALL" or range/index_merge access
method (but not 'index' for some reason), i.e. this matches method which
E(#records) is in found_records.
*/
ha_rows read_time;
table_map dependent,key_dependent;
uint use_quick,index;
uint status; // Save status for cache
......@@ -156,15 +170,24 @@ enum_nested_loop_state sub_select_cache(JOIN *join, JOIN_TAB *join_tab, bool
enum_nested_loop_state sub_select(JOIN *join,JOIN_TAB *join_tab, bool
end_of_records);
typedef struct st_position /* Used in find_best */
/*
Information about a position of table within a join order. Used in join
optimization.
*/
typedef struct st_position
{
double records_read;
/*
Cost accessing the table in course of the entire complete join execution,
i.e. cost of one access method use (e.g. 'range' or 'ref' scan ) times
number the access method will be invoked.
*/
double read_time;
JOIN_TAB *table;
KEYUSE *key;
} POSITION;
typedef struct st_rollup
{
enum State { STATE_NONE, STATE_INITED, STATE_READY };
......
......@@ -264,11 +264,28 @@ struct st_table {
MY_BITMAP *read_set, *write_set; /* Active column sets */
query_id_t query_id;
/*
For each key that has quick_keys.is_set(key) == TRUE: estimate of #records
and max #key parts that range access would use.
*/
ha_rows quick_rows[MAX_KEY];
/* Bitmaps of key parts that =const for the entire join. */
key_part_map const_key_parts[MAX_KEY];
uint quick_key_parts[MAX_KEY];
uint quick_n_ranges[MAX_KEY];
/*
Estimate of number of records that satisfy SARGable part of the table
condition, or table->file->records if no SARGable condition could be
constructed.
This value is used by join optimizer as an estimate of number of records
that will pass the table condition (condition that depends on fields of
this table and constants)
*/
ha_rows quick_condition_rows;
/*
If this table has TIMESTAMP field with auto-set property (pointed by
timestamp_field member) then this variable indicates during which
......
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