This fixes a bug in show create table displaying auto_increment field when it should not.

It also refactors the test case for Archive (removed two bad tests).

mysql-test/r/archive.result

-drop table if exists t1,t2,t3,t4,t5;
+DROP TABLE if exists t1,t2,t3,t4,t5,t6;
+SET storage_engine=ARCHIVE;
 CREATE TABLE t1 (
 Period smallint(4) unsigned zerofill DEFAULT '0000' NOT NULL,
 Varor_period smallint(4) unsigned DEFAULT '0' NOT NULL
@@ -184,7 +185,7 @@ fld1	fld3
 250503	heaving
 250504	population
 250505	bomb
-create table t3 engine=archive select * FROM t2;
+CREATE TABLE t3 engine=archive select * FROM t2;
 select * FROM t3 where fld3='bonfire';
 auto	fld1	companynr	fld3	fld4	fld5	fld6
 1191	068504	00	bonfire	corresponds	positively	
@@ -12358,7 +12359,7 @@ CREATE TABLE `t5` (
 `a` int(11) NOT NULL auto_increment,
 b char(12),
 PRIMARY KEY  (`a`)
-) ENGINE=ARCHIVE DEFAULT CHARSET=latin1;
+)  DEFAULT CHARSET=latin1;
 INSERT INTO t5 VALUES (NULL, "foo");
 INSERT INTO t5 VALUES (NULL, "foo");
 INSERT INTO t5 VALUES (NULL, "foo");
@@ -12391,7 +12392,7 @@ CREATE TABLE `t5` (
 `a` int(11) NOT NULL auto_increment,
 b char(12),
 KEY  (`a`)
-) ENGINE=ARCHIVE DEFAULT CHARSET=latin1 AUTO_INCREMENT=5;
+)  DEFAULT CHARSET=latin1 AUTO_INCREMENT=5;
 INSERT INTO t5 VALUES (NULL, "foo");
 INSERT INTO t5 VALUES (NULL, "foo");
 INSERT INTO t5 VALUES (NULL, "foo");
@@ -12443,7 +12444,7 @@ CREATE TABLE `t5` (
 `a` int(11) NOT NULL auto_increment,
 b blob(12),
 KEY  (`a`)
-) ENGINE=ARCHIVE DEFAULT CHARSET=latin1;
+)  DEFAULT CHARSET=latin1;
 INSERT INTO t5 VALUES (NULL, "foo");
 INSERT INTO t5 VALUES (NULL, "We the people");
 INSERT INTO t5 VALUES (NULL, "in order to form a more pefect union");
@@ -12496,7 +12497,7 @@ CREATE TABLE `t5` (
 b blob(12),
 c blob(12),
 KEY  (`a`)
-) ENGINE=ARCHIVE DEFAULT CHARSET=latin1;
+)  DEFAULT CHARSET=latin1;
 INSERT INTO t5 VALUES (NULL, "foo", "grok this!");
 INSERT INTO t5 VALUES (NULL, "We the people", NULL);
 INSERT INTO t5 VALUES (NULL, "in order to form a more peefect union", "secure the blessing of liberty");
@@ -12545,8 +12546,8 @@ SELECT c FROM t5 WHERE a IN (32, 23, 5);
 c
 NULL
 posterity
-drop table t1;
-create table t1 (v varchar(32));
+DROP TABLE t1;
+CREATE TABLE t1 (v varchar(32)) ;
 insert into t1 values ('def'),('abc'),('hij'),('3r4f');
 select * from t1;
 v
@@ -12554,68 +12555,34 @@ def
 abc
 hij
 3r4f
-alter table t1 change v v2 varchar(32);
+ALTER TABLE t1 change v v2 varchar(32);
 select * from t1;
 v2
 def
 abc
 hij
 3r4f
-alter table t1 change v2 v varchar(64);
+ALTER TABLE t1 change v2 v varchar(64);
 select * from t1;
 v
 def
 abc
 hij
 3r4f
-update t1 set v = 'lmn' where v = 'hij';
-select * from t1;
-v
-def
-abc
-lmn
-3r4f
-alter table t1 add i int auto_increment not null primary key first;
-select * from t1;
-i	v
-1	def
-2	abc
-3	lmn
-4	3r4f
-update t1 set i=5 where i=3;
+ALTER TABLE t1 add i int auto_increment not null primary key first;
 select * from t1;
 i	v
 1	def
 2	abc
-5	lmn
+3	hij
 4	3r4f
-alter table t1 change i i bigint;
-select * from t1;
-i	v
-1	def
-2	abc
-5	lmn
-4	3r4f
-alter table t1 add unique key (i, v);
-select * from t1 where i between 2 and 4 and v in ('def','3r4f','lmn');
-i	v
-4	3r4f
-alter table t1 data directory="$MYSQLTEST_VARDIR/tmp";
-Warnings:
-Warning	0	DATA DIRECTORY option ignored
-select * from t1;
-i	v
-1	def
-2	abc
-4	3r4f
-5	lmn
 DROP TABLE t5;
 CREATE TABLE `t5` (
 `a` int(11) NOT NULL auto_increment,
 b varchar(250),
 c varchar(800),
 KEY  (`a`)
-) ENGINE=ARCHIVE DEFAULT CHARSET=latin1;
+)  DEFAULT CHARSET=latin1;
 INSERT INTO t5 VALUES (NULL, "foo", "grok this!");
 INSERT INTO t5 VALUES (NULL, "We the people", NULL);
 INSERT INTO t5 VALUES (NULL, "in order to form a more peefect union", "secure the blessing of liberty");
@@ -12636,4 +12603,66 @@ a	b	c
 23	provide for the common defense	posterity
 33	promote the general welfare	do ordain
 34	abcdeghijklmnopqrstuvwxyzabcdeghijklmnopqrstuvwxyzabcdeghijklmnopqrstuvwxyzabcdeghijklmnopqrstuvwxyzabcdeghijklmnopqrstuvwxyzabcdeghijklmnopqrstuvwxyzabcdeghijklmnopqrstuvwxyzabcdeghijklmnopqrstuvwxyzabcdeghijklmnopqrstuvwxyzabcdeghijklmnopqrstuvwxyz	do ordain
-drop table t1, t2, t4, t5;
+CREATE TABLE `t6` (
+`a` int(11) NOT NULL auto_increment,
+b blob(12),
+c int,
+KEY  (`a`)
+)  DEFAULT CHARSET=latin1;
+SELECT * FROM t6;
+a	b	c
+INSERT INTO t6 VALUES (NULL, "foo", NULL);
+INSERT INTO t6 VALUES (NULL, "We the people", 5);
+INSERT INTO t6 VALUES (NULL, "in order to form a more pefect union", 9);
+INSERT INTO t6 VALUES (NULL, "establish justice", NULL);
+INSERT INTO t6 VALUES (NULL, NULL, NULL);
+INSERT INTO t6 VALUES (32, "ensure domestic tranquility", NULL);
+INSERT INTO t6 VALUES (23, "provide for the common defense", 30);
+INSERT INTO t6 VALUES (NULL, "fo fooo", 70);
+INSERT INTO t6 VALUES (NULL, NULL, 98);
+INSERT INTO t6 VALUES (NULL, "promote the general welfare", 50);
+SELECT * FROM t6;
+a	b	c
+1	foo	NULL
+2	We the people	5
+3	in order to form a more pefect union	9
+4	establish justice	NULL
+5	NULL	NULL
+32	ensure domestic tranquility	NULL
+23	provide for the common defense	30
+33	fo fooo	70
+34	NULL	98
+35	promote the general welfare	50
+SELECT * FROM t6 ORDER BY a;
+a	b	c
+1	foo	NULL
+2	We the people	5
+3	in order to form a more pefect union	9
+4	establish justice	NULL
+5	NULL	NULL
+23	provide for the common defense	30
+32	ensure domestic tranquility	NULL
+33	fo fooo	70
+34	NULL	98
+35	promote the general welfare	50
+SELECT * FROM t6 ORDER BY a DESC;
+a	b	c
+35	promote the general welfare	50
+34	NULL	98
+33	fo fooo	70
+32	ensure domestic tranquility	NULL
+23	provide for the common defense	30
+5	NULL	NULL
+4	establish justice	NULL
+3	in order to form a more pefect union	9
+2	We the people	5
+1	foo	NULL
+SHOW CREATE TABLE t6;
+Table	Create Table
+t6	CREATE TABLE `t6` (
+  `a` int(11) NOT NULL AUTO_INCREMENT,
+  `b` tinyblob,
+  `c` int(11) DEFAULT NULL,
+  KEY `a` (`a`)
+) ENGINE=ARCHIVE DEFAULT CHARSET=latin1
+DROP TABLE t1, t2, t4, t5;

mysql-test/t/archive.test

@@ -6,9 +6,11 @@
 -- source include/have_binlog_format_mixed_or_statement.inc
 
 --disable_warnings
-drop table if exists t1,t2,t3,t4,t5;
+DROP TABLE if exists t1,t2,t3,t4,t5,t6;
 --enable_warnings
 
+SET storage_engine=ARCHIVE;
+
 CREATE TABLE t1 (
   Period smallint(4) unsigned zerofill DEFAULT '0000' NOT NULL,
   Varor_period smallint(4) unsigned DEFAULT '0' NOT NULL
@@ -1294,7 +1296,7 @@ select fld1,fld3 FROM t2 where fld1 like "25050_";
 #
 # Test rename of table
 #
-create table t3 engine=archive select * FROM t2;
+CREATE TABLE t3 engine=archive select * FROM t2;
 select * FROM t3 where fld3='bonfire';
 select count(*) FROM t3;
 # Clean up path in error message
@@ -1356,7 +1358,7 @@ while (`SELECT COUNT(auto)!=1214 FROM t2`)
 }
 SELECT COUNT(auto) FROM t2;
 
-# Adding test for alter table
+# Adding test for ALTER TABLE
 ALTER TABLE t2 DROP COLUMN fld6; 
 SHOW CREATE TABLE t2;
 SELECT * FROM t2;
@@ -1369,7 +1371,7 @@ CREATE TABLE `t5` (
 `a` int(11) NOT NULL auto_increment,
 b char(12),
 PRIMARY KEY  (`a`)
-) ENGINE=ARCHIVE DEFAULT CHARSET=latin1;
+)  DEFAULT CHARSET=latin1;
 
 INSERT INTO t5 VALUES (NULL, "foo");
 INSERT INTO t5 VALUES (NULL, "foo");
@@ -1393,7 +1395,7 @@ CREATE TABLE `t5` (
 `a` int(11) NOT NULL auto_increment,
 b char(12),
 KEY  (`a`)
-) ENGINE=ARCHIVE DEFAULT CHARSET=latin1 AUTO_INCREMENT=5;
+)  DEFAULT CHARSET=latin1 AUTO_INCREMENT=5;
 
 INSERT INTO t5 VALUES (NULL, "foo");
 INSERT INTO t5 VALUES (NULL, "foo");
@@ -1419,7 +1421,7 @@ CREATE TABLE `t5` (
 `a` int(11) NOT NULL auto_increment,
 b blob(12),
 KEY  (`a`)
-) ENGINE=ARCHIVE DEFAULT CHARSET=latin1;
+)  DEFAULT CHARSET=latin1;
 
 INSERT INTO t5 VALUES (NULL, "foo");
 INSERT INTO t5 VALUES (NULL, "We the people");
@@ -1447,7 +1449,7 @@ CREATE TABLE `t5` (
 b blob(12),
 c blob(12),
 KEY  (`a`)
-) ENGINE=ARCHIVE DEFAULT CHARSET=latin1;
+)  DEFAULT CHARSET=latin1;
 
 INSERT INTO t5 VALUES (NULL, "foo", "grok this!");
 INSERT INTO t5 VALUES (NULL, "We the people", NULL);
@@ -1464,35 +1466,24 @@ SELECT c FROM t5;
 SELECT c FROM t5 WHERE a =3;
 SELECT c FROM t5 WHERE a IN (32, 23, 5);
 
-# Adding this in case someone tries to add fast alter table and doesn't tes
+# Adding this in case someone tries to add fast ALTER TABLE and doesn't tes
 # it.
-# Some additional tests for new, faster alter table.  Note that most of the
-# whole alter table code is being tested all around the test suite already.
+# Some additional tests for new, faster ALTER TABLE.  Note that most of the
+# whole ALTER TABLE code is being tested all around the test suite already.
 #
 
-drop table t1;
-create table t1 (v varchar(32));
+DROP TABLE t1;
+CREATE TABLE t1 (v varchar(32)) ;
 insert into t1 values ('def'),('abc'),('hij'),('3r4f');
 select * from t1;
 # Fast alter, no copy performed
-alter table t1 change v v2 varchar(32);
+ALTER TABLE t1 change v v2 varchar(32);
 select * from t1;
 # Fast alter, no copy performed
-alter table t1 change v2 v varchar(64);
-select * from t1;
-update t1 set v = 'lmn' where v = 'hij';
-select * from t1;
-# Regular alter table
-alter table t1 add i int auto_increment not null primary key first;
+ALTER TABLE t1 change v2 v varchar(64);
 select * from t1;
-update t1 set i=5 where i=3;
-select * from t1;
-alter table t1 change i i bigint;
-select * from t1;
-alter table t1 add unique key (i, v);
-select * from t1 where i between 2 and 4 and v in ('def','3r4f','lmn');
-
-alter table t1 data directory="$MYSQLTEST_VARDIR/tmp";
+# Regular ALTER TABLE
+ALTER TABLE t1 add i int auto_increment not null primary key first;
 select * from t1;
 
 # Testing cleared row key
@@ -1503,7 +1494,7 @@ CREATE TABLE `t5` (
 b varchar(250),
 c varchar(800),
 KEY  (`a`)
-) ENGINE=ARCHIVE DEFAULT CHARSET=latin1;
+)  DEFAULT CHARSET=latin1;
 
 INSERT INTO t5 VALUES (NULL, "foo", "grok this!");
 INSERT INTO t5 VALUES (NULL, "We the people", NULL);
@@ -1516,11 +1507,35 @@ INSERT INTO t5 VALUES (NULL, "abcdeghijklmnopqrstuvwxyzabcdeghijklmnopqrstuvwxyz
 
 SELECT * FROM t5;
 
+CREATE TABLE `t6` (
+`a` int(11) NOT NULL auto_increment,
+b blob(12),
+c int,
+KEY  (`a`)
+)  DEFAULT CHARSET=latin1;
+SELECT * FROM t6;
+INSERT INTO t6 VALUES (NULL, "foo", NULL);
+INSERT INTO t6 VALUES (NULL, "We the people", 5);
+INSERT INTO t6 VALUES (NULL, "in order to form a more pefect union", 9);
+INSERT INTO t6 VALUES (NULL, "establish justice", NULL);
+INSERT INTO t6 VALUES (NULL, NULL, NULL);
+INSERT INTO t6 VALUES (32, "ensure domestic tranquility", NULL);
+INSERT INTO t6 VALUES (23, "provide for the common defense", 30);
+INSERT INTO t6 VALUES (NULL, "fo fooo", 70);
+INSERT INTO t6 VALUES (NULL, NULL, 98);
+INSERT INTO t6 VALUES (NULL, "promote the general welfare", 50);
+SELECT * FROM t6;
+SELECT * FROM t6 ORDER BY a;
+SELECT * FROM t6 ORDER BY a DESC;
+
+SHOW CREATE TABLE t6;
+
+
 # 
 # Cleanup, test is over
 #
 
 
 --disable_warnings
-drop table t1, t2, t4, t5;
+DROP TABLE t1, t2, t4, t5;
 --enable_warnings

storage/archive/ha_archive.cc

@@ -28,13 +28,13 @@
 /*
   First, if you want to understand storage engines you should look at 
   ha_example.cc and ha_example.h. 
+
   This example was written as a test case for a customer who needed
   a storage engine without indexes that could compress data very well.
   So, welcome to a completely compressed storage engine. This storage
   engine only does inserts. No replace, deletes, or updates. All reads are 
-  complete table scans. Compression is done through azip (bzip compresses
-  better, but only marginally, if someone asks I could add support for
-  it too, but beaware that it costs a lot more in CPU time then azip).
+  complete table scans. Compression is done through a combination of packing
+  and making use of the zlib library
   
   We keep a file pointer open for each instance of ha_archive for each read
   but for writes we keep one open file handle just for that. We flush it
@@ -80,38 +80,17 @@
 
 
   TODO:
-   Add bzip optional support.
    Allow users to set compression level.
    Implement versioning, should be easy.
    Allow for errors, find a way to mark bad rows.
    Add optional feature so that rows can be flushed at interval (which will cause less
      compression but may speed up ordered searches).
    Checkpoint the meta file to allow for faster rebuilds.
-   Dirty open (right now the meta file is repaired if a crash occured).
    Option to allow for dirty reads, this would lower the sync calls, which would make
      inserts a lot faster, but would mean highly arbitrary reads.
 
     -Brian
 */
-/*
-  Notes on file formats.
-  The Meta file is layed out as:
-  check - Just an int of 254 to make sure that the the file we are opening was
-          never corrupted.
-  version - The current version of the file format.
-  rows - This is an unsigned long long which is the number of rows in the data
-         file.
-  check point - Reserved for future use
-  auto increment - MAX value for autoincrement
-  dirty - Status of the file, whether or not its values are the latest. This
-          flag is what causes a repair to occur
-
-  The data file:
-  check - Just an int of 254 to make sure that the the file we are opening was
-          never corrupted.
-  version - The current version of the file format.
-  data - The data is stored in a "row +blobs" format.
-*/
 
 /* Variables for archive share methods */
 pthread_mutex_t archive_mutex;
@@ -121,13 +100,6 @@ static HASH archive_open_tables;
 #define ARZ ".ARZ"               // The data file
 #define ARN ".ARN"               // Files used during an optimize call
 #define ARM ".ARM"               // Meta file (deprecated)
-/*
-  uchar + uchar + ulonglong + ulonglong + ulonglong + ulonglong + FN_REFLEN 
-  + uchar
-*/
-#define META_BUFFER_SIZE sizeof(uchar) + sizeof(uchar) + sizeof(ulonglong) \
-  + sizeof(ulonglong) + sizeof(ulonglong) + sizeof(ulonglong) + FN_REFLEN \
-  + sizeof(uchar)
 
 /*
   uchar + uchar
@@ -761,8 +733,9 @@ unsigned int ha_archive::pack_row(byte *record)
 
   for (Field **field=table->field ; *field ; field++)
   {
-    ptr=(byte*) (*field)->pack((char*) ptr,
-                               (char*) record + (*field)->offset(record));
+    if (!((*field)->is_null()))
+      ptr=(byte*) (*field)->pack((char*) ptr,
+                                 (char*) record + (*field)->offset(record));
   }
 
   int4store(record_buffer->buffer, (int)(ptr - record_buffer->buffer -
@@ -1114,7 +1087,11 @@ int ha_archive::unpack_row(azio_stream *file_to_read, byte *record)
   memcpy(record, ptr, table->s->null_bytes);
   ptr+= table->s->null_bytes;
   for (Field **field=table->field ; *field ; field++)
-    ptr= (*field)->unpack((char *)record + (*field)->offset(table->record[0]), ptr);
+    if (!((*field)->is_null()))
+    {
+      ptr= (*field)->unpack((char *)record + 
+                            (*field)->offset(table->record[0]), ptr);
+    }
 
   DBUG_RETURN(0);
 }
@@ -1439,7 +1416,7 @@ void ha_archive::update_create_info(HA_CREATE_INFO *create_info)
   DBUG_ENTER("ha_archive::update_create_info");
 
   ha_archive::info(HA_STATUS_AUTO);
-  if (!(create_info->used_fields & HA_CREATE_USED_AUTO))
+  if (create_info->used_fields & HA_CREATE_USED_AUTO)
   {
     /* 
       Internally Archive keeps track of last used, not next used.