Merge mockturtle.local:/home/dlenev/src/mysql-5.0-rt-merge

into  mockturtle.local:/home/dlenev/src/mysql-5.1-rt-merge

mysql-test/r/sp.result

@@ -5359,6 +5359,21 @@ a
 2
 DROP TABLE t11, t12|
 DROP FUNCTION bug19862|
+drop table if exists t3|
+drop database if exists mysqltest1|
+create table t3 (a int)|
+insert into t3 (a) values (1), (2)|
+create database mysqltest1|
+use mysqltest1|
+drop database mysqltest1|
+select database()|
+database()
+NULL
+select * from (select 1 as a) as t1 natural join (select * from test.t3) as t2|
+a
+1
+use test|
+drop table t3|
 DROP PROCEDURE IF EXISTS bug16899_p1|
 DROP FUNCTION IF EXISTS bug16899_f1|
 CREATE DEFINER=1234567890abcdefGHIKL@localhost PROCEDURE bug16899_p1()
@@ -5387,6 +5402,13 @@ ERROR HY000: Can't execute the query because you have a conflicting read lock
 UNLOCK TABLES|
 The following should succeed.
 DROP PROCEDURE bug21414|
+set names utf8|
+drop database if exists това_е_дълго_име_за_база_данни_нали|
+create database това_е_дълго_име_за_база_данни_нали|
+INSERT INTO mysql.proc VALUES ('това_е_дълго_име_за_база_данни_нали','това_е_процедура_с_доста_дълго_име_нали_и_още_по_дълго','PROCEDURE','това_е_процедура_с_доста_дълго_име_нали_и_още_по_дълго','SQL','CONTAINS_SQL','NO','DEFINER','','','bad_body','root@localhost',now(), now(),'','')|
+call това_е_дълго_име_за_база_данни_нали.това_е_процедура_с_доста_дълго_име_нали_и_още_по_дълго()|
+ERROR HY000: Failed to load routine това_е_дълго_име_за_база_данни_нали.това_е_процедура_с_доста_дълго_име_нали_и_още_по_дълго. The table mysql.proc is missing, corrupt, or contains bad data (internal code -6)
+drop database това_е_дълго_име_за_база_данни_нали|
 CREATE TABLE t3 (
 Member_ID varchar(15) NOT NULL,
 PRIMARY KEY (Member_ID)
@@ -5423,8 +5445,6 @@ INSERT INTO t4(Member_ID, Action, Action_Date, Track) VALUES
 ('666666', 'Enrolled', '2006-05-12', 'CHF' ),
 ('666666', 'Disenrolled', '2006-06-01', 'CAD' )|
 DROP FUNCTION IF EXISTS bug21493|
-Warnings:
-Note	1305	FUNCTION bug21493 does not exist
 CREATE FUNCTION bug21493(paramMember VARCHAR(15)) RETURNS varchar(45)
 BEGIN
 DECLARE tracks VARCHAR(45);
@@ -5451,11 +5471,4 @@ CHF
 DROP FUNCTION bug21493|
 DROP TABLE t3,t4|
 End of 5.0 tests
-set names utf8|
-drop database if exists това_е_дълго_име_за_база_данни_нали|
-create database това_е_дълго_име_за_база_данни_нали|
-INSERT INTO mysql.proc VALUES ('това_е_дълго_име_за_база_данни_нали','това_е_процедура_с_доста_дълго_име_нали_и_още_по_дълго','PROCEDURE','това_е_процедура_с_доста_дълго_име_нали_и_още_по_дълго','SQL','CONTAINS_SQL','NO','DEFINER','','','bad_body','root@localhost',now(), now(),'','')|
-call това_е_дълго_име_за_база_данни_нали.това_е_процедура_с_доста_дълго_име_нали_и_още_по_дълго()|
-ERROR HY000: Failed to load routine това_е_дълго_име_за_база_данни_нали.. The table mysql.proc is missing, corrupt, or contains bad data (internal code -6)
-drop database това_е_дълго_име_за_база_данни_нали|
 drop table t1,t2;

mysql-test/r/temp_table.result

@@ -135,6 +135,23 @@ d	c
 bar	2
 foo	1
 drop table t1, t2;
+DROP TABLE IF EXISTS t1;
+CREATE TABLE t1 (i INT);
+LOCK TABLE t1 WRITE;
+CREATE TEMPORARY TABLE t1 (i INT);
+The following command should not block
+DROP TEMPORARY TABLE t1;
+DROP TABLE t1;
+CREATE TABLE t1 (i INT);
+CREATE TEMPORARY TABLE t2 (i INT);
+DROP TEMPORARY TABLE t2, t1;
+ERROR 42S02: Unknown table 't1'
+SELECT * FROM t2;
+ERROR 42S02: Table 'test.t2' doesn't exist
+SELECT * FROM t1;
+i
+DROP TABLE t1;
+End of 4.1 tests.
 create temporary table t1 (a int);
 insert into t1 values (4711);
 select * from t1;

mysql-test/t/sp.test

@@ -6291,6 +6291,41 @@ create procedure bug21416() show create procedure bug21416|
 call bug21416()|
 drop procedure bug21416|
 
+
+#
+# BUG#21414: SP: Procedure undroppable, to some extent
+#
+--disable_warnings
+DROP PROCEDURE IF EXISTS bug21414|
+--enable_warnings
+
+CREATE PROCEDURE bug21414() SELECT 1|
+
+FLUSH TABLES WITH READ LOCK|
+
+--error ER_CANT_UPDATE_WITH_READLOCK
+DROP PROCEDURE bug21414|
+
+UNLOCK TABLES|
+
+--echo The following should succeed.
+DROP PROCEDURE bug21414|
+
+
+#
+# BUG#21311: Possible stack overrun if SP has non-latin1 name
+#
+set names utf8|
+--disable_warnings
+drop database if exists това_е_дълго_име_за_база_данни_нали|
+--enable_warnings
+create database това_е_дълго_име_за_база_данни_нали|
+INSERT INTO mysql.proc VALUES ('това_е_дълго_име_за_база_данни_нали','това_е_процедура_с_доста_дълго_име_нали_и_още_по_дълго','PROCEDURE','това_е_процедура_с_доста_дълго_име_нали_и_още_по_дълго','SQL','CONTAINS_SQL','NO','DEFINER','','','bad_body','root@localhost',now(), now(),'','')|
+--error ER_SP_PROC_TABLE_CORRUPT
+call това_е_дълго_име_за_база_данни_нали.това_е_процедура_с_доста_дълго_име_нали_и_още_по_дълго()|
+drop database това_е_дълго_име_за_база_данни_нали|
+
+
 #
 # BUG#21414: SP: Procedure undroppable, to some extent
 #
@@ -6355,9 +6390,9 @@ INSERT INTO t4(Member_ID, Action, Action_Date, Track) VALUES
   ('666666', 'Enrolled', '2006-05-12', 'CHF' ),
   ('666666', 'Disenrolled', '2006-06-01', 'CAD' )|
 
-#--disable_warnings
+--disable_warnings
 DROP FUNCTION IF EXISTS bug21493|
-#--enable_warnings
+--enable_warnings
 
 CREATE FUNCTION bug21493(paramMember VARCHAR(15)) RETURNS varchar(45)
 BEGIN
@@ -6380,19 +6415,6 @@ DROP TABLE t3,t4|
 --echo End of 5.0 tests
 
 
-#
-# BUG#21311: Possible stack overrun if SP has non-latin1 name
-#
-set names utf8|
---disable_warnings
-drop database if exists това_е_дълго_име_за_база_данни_нали|
---enable_warnings
-create database това_е_дълго_име_за_база_данни_нали|
-INSERT INTO mysql.proc VALUES ('това_е_дълго_име_за_база_данни_нали','това_е_процедура_с_доста_дълго_име_нали_и_още_по_дълго','PROCEDURE','това_е_процедура_с_доста_дълго_име_нали_и_още_по_дълго','SQL','CONTAINS_SQL','NO','DEFINER','','','bad_body','root@localhost',now(), now(),'','')|
---error ER_SP_PROC_TABLE_CORRUPT
-call това_е_дълго_име_за_база_данни_нали.това_е_процедура_с_доста_дълго_име_нали_и_още_по_дълго()|
-drop database това_е_дълго_име_за_база_данни_нали|
-
 #
 # BUG#NNNN: New bug synopsis
 #

mysql-test/t/temp_table.test

@@ -116,7 +116,54 @@ insert into t2 values (NULL, 'foo'), (NULL, 'bar');
 select d, c from t1 left join t2 on b = c where a = 3 order by d;
 drop table t1, t2;
 
-# End of 4.1 tests
+
+#
+# BUG#21096: locking issue ; temporary table conflicts.
+#
+# The problem was that on DROP TEMPORARY table name lock was acquired,
+# which should not be done.
+#
+--disable_warnings
+DROP TABLE IF EXISTS t1;
+--enable_warnings
+
+CREATE TABLE t1 (i INT);
+
+LOCK TABLE t1 WRITE;
+
+connect (conn1, localhost, root,,);
+
+CREATE TEMPORARY TABLE t1 (i INT);
+
+--echo The following command should not block
+DROP TEMPORARY TABLE t1;
+
+disconnect conn1;
+connection default;
+
+DROP TABLE t1;
+
+#
+# Check that it's not possible to drop a base table with
+# DROP TEMPORARY statement.
+#
+CREATE TABLE t1 (i INT);
+CREATE TEMPORARY TABLE t2 (i INT);
+
+--error 1051
+DROP TEMPORARY TABLE t2, t1;
+
+# Table t2 should have been dropped.
+--error 1146
+SELECT * FROM t2;
+# But table t1 should still be there.
+SELECT * FROM t1;
+
+DROP TABLE t1;
+
+
+--echo End of 4.1 tests.
+
 
 #
 # Test truncate with temporary tables

sql/sql_select.cc

@@ -1137,17 +1137,28 @@ JOIN::optimize()
 
     tmp_table_param.hidden_field_count= (all_fields.elements -
 					 fields_list.elements);
+    ORDER *tmp_group= ((!simple_group && !procedure &&
+                        !(test_flags & TEST_NO_KEY_GROUP)) ? group_list :
+                                                             (ORDER*) 0);
+    /*
+      Pushing LIMIT to the temporary table creation is not applicable
+      when there is ORDER BY or GROUP BY or there is no GROUP BY, but
+      there are aggregate functions, because in all these cases we need
+      all result rows.
+    */
+    ha_rows tmp_rows_limit= ((order == 0 || skip_sort_order ||
+                              test(select_options & OPTION_BUFFER_RESULT)) &&
+                             !tmp_group &&
+                             !thd->lex->current_select->with_sum_func) ?
+                            select_limit : HA_POS_ERROR;
+
     if (!(exec_tmp_table1=
 	  create_tmp_table(thd, &tmp_table_param, all_fields,
-			   ((!simple_group && !procedure &&
-			     !(test_flags & TEST_NO_KEY_GROUP)) ?
-			    group_list : (ORDER*) 0),
+                           tmp_group,
 			   group_list ? 0 : select_distinct,
 			   group_list && simple_group,
 			   select_options,
-			   (order == 0 || skip_sort_order || 
-                            test(select_options & OPTION_BUFFER_RESULT)) ? 
-                             select_limit : HA_POS_ERROR,
+                           tmp_rows_limit,
 			   (char *) "")))
       DBUG_RETURN(1);
 
@@ -9197,6 +9208,13 @@ create_tmp_table(THD *thd,TMP_TABLE_PARAM *param,List<Item> &fields,
                               thd->variables.max_heap_table_size) :
                           thd->variables.tmp_table_size)/ share->reclength);
   set_if_bigger(share->max_rows,1);		// For dummy start options
+  /*
+    Push the LIMIT clause to the temporary table creation, so that we
+    materialize only up to 'rows_limit' records instead of all result records.
+  */
+  set_if_smaller(share->max_rows, rows_limit);
+  param->end_write_records= rows_limit;
+
   keyinfo= param->keyinfo;
 
   if (group)
@@ -9329,19 +9347,6 @@ create_tmp_table(THD *thd,TMP_TABLE_PARAM *param,List<Item> &fields,
     }
   }
 
-  /*
-    Push the LIMIT clause to the temporary table creation, so that we
-    materialize only up to 'rows_limit' records instead of all result records.
-    This optimization is not applicable when there is GROUP BY or there is
-    no GROUP BY, but there are aggregate functions, because both must be
-    computed for all result rows.
-  */
-  if (!group && !thd->lex->current_select->with_sum_func)
-  {
-    set_if_smaller(table->s->max_rows, rows_limit);
-    param->end_write_records= rows_limit;
-  }
-
   if (thd->is_fatal_error)				// If end of memory
     goto err;					 /* purecov: inspected */
   share->db_record_offset= 1;

sql/sql_table.cc

@@ -1633,7 +1633,7 @@ int mysql_rm_table_part2(THD *thd, TABLE_LIST *tables, bool if_exists,
     }
   }
 
-  if (lock_table_names(thd, tables))
+  if (!drop_temporary && lock_table_names(thd, tables))
     DBUG_RETURN(1);
 
   /* Don't give warnings for not found errors, as we already generate notes */
@@ -1818,6 +1818,7 @@ int mysql_rm_table_part2(THD *thd, TABLE_LIST *tables, bool if_exists,
     }
   }
 
+  if (!drop_temporary)
     unlock_table_names(thd, tables, (TABLE_LIST*) 0);
   thd->no_warnings_for_error= 0;
   DBUG_RETURN(error);