Bug #32247 Test reports wrong value of "AUTO_INCREMENT" (on a partitioned InnoDB table).

ha_partition::update_create_info() just calls update_create_info
of a first partition, so only get the autoincrement maximum
of the first partition, so SHOW CREATE TABLE can show
small AUTO_INCREMENT parameters.
Fixed by implementing ha_partition::update_create_info() in a way
other handlers work.
HA_ARCHIVE:stats.auto_increment handling made consistent with other engines

mysql-test/r/archive.result

@@ -12665,7 +12665,7 @@ t6	CREATE TABLE `t6` (
   `b` tinyblob,
   `c` int(11) DEFAULT NULL,
   KEY `a` (`a`)
-) ENGINE=ARCHIVE DEFAULT CHARSET=latin1
+) ENGINE=ARCHIVE AUTO_INCREMENT=36 DEFAULT CHARSET=latin1
 DROP TABLE t1, t2, t4, t5, t6;
 create table t1 (i int) engine=archive;
 insert into t1 values (1);

mysql-test/r/partition.result

@@ -1291,4 +1291,19 @@ t1	CREATE TABLE `t1` (
   `b` int(11) DEFAULT NULL
 ) ENGINE=MyISAM DEFAULT CHARSET=latin1 /*!50100 PARTITION BY RANGE (b) (PARTITION p1 VALUES LESS THAN (10) ENGINE = MyISAM, PARTITION p2 VALUES LESS THAN (20) ENGINE = MyISAM) */
 drop table t1, t2;
+CREATE TABLE t1(id MEDIUMINT NOT NULL AUTO_INCREMENT,
+user CHAR(25), PRIMARY KEY(id))
+PARTITION BY RANGE(id)
+SUBPARTITION BY hash(id) subpartitions 2
+(PARTITION pa1 values less than (10),
+PARTITION pa2 values less than (20),
+PARTITION pa11 values less than MAXVALUE);
+show create table t1;
+Table	Create Table
+t1	CREATE TABLE `t1` (
+  `id` mediumint(9) NOT NULL AUTO_INCREMENT,
+  `user` char(25) DEFAULT NULL,
+  PRIMARY KEY (`id`)
+) ENGINE=MyISAM AUTO_INCREMENT=16 DEFAULT CHARSET=latin1 /*!50100 PARTITION BY RANGE (id) SUBPARTITION BY HASH (id) SUBPARTITIONS 2 (PARTITION pa1 VALUES LESS THAN (10) ENGINE = MyISAM, PARTITION pa2 VALUES LESS THAN (20) ENGINE = MyISAM, PARTITION pa11 VALUES LESS THAN MAXVALUE ENGINE = MyISAM) */
+drop table t1;
 End of 5.1 tests

mysql-test/suite/rpl/r/rpl_innodb_bug28430.result

@@ -113,7 +113,7 @@ Create Table	CREATE TABLE `byrange_tbl` (
   `fkid` mediumint(9) DEFAULT NULL,
   `filler` varchar(255) DEFAULT NULL,
   PRIMARY KEY (`id`)
-) ENGINE=InnoDB AUTO_INCREMENT=9 DEFAULT CHARSET=latin1 /*!50100 PARTITION BY RANGE (id) SUBPARTITION BY HASH (id) SUBPARTITIONS 2 (PARTITION pa1 VALUES LESS THAN (10) ENGINE = InnoDB, PARTITION pa2 VALUES LESS THAN (20) ENGINE = InnoDB, PARTITION pa3 VALUES LESS THAN (30) ENGINE = InnoDB, PARTITION pa4 VALUES LESS THAN (40) ENGINE = InnoDB, PARTITION pa5 VALUES LESS THAN (50) ENGINE = InnoDB, PARTITION pa6 VALUES LESS THAN (60) ENGINE = InnoDB, PARTITION pa7 VALUES LESS THAN (70) ENGINE = InnoDB, PARTITION pa8 VALUES LESS THAN (80) ENGINE = InnoDB, PARTITION pa9 VALUES LESS THAN (90) ENGINE = InnoDB, PARTITION pa10 VALUES LESS THAN (100) ENGINE = InnoDB, PARTITION pa11 VALUES LESS THAN MAXVALUE ENGINE = InnoDB) */
+) ENGINE=InnoDB AUTO_INCREMENT=1001 DEFAULT CHARSET=latin1 /*!50100 PARTITION BY RANGE (id) SUBPARTITION BY HASH (id) SUBPARTITIONS 2 (PARTITION pa1 VALUES LESS THAN (10) ENGINE = InnoDB, PARTITION pa2 VALUES LESS THAN (20) ENGINE = InnoDB, PARTITION pa3 VALUES LESS THAN (30) ENGINE = InnoDB, PARTITION pa4 VALUES LESS THAN (40) ENGINE = InnoDB, PARTITION pa5 VALUES LESS THAN (50) ENGINE = InnoDB, PARTITION pa6 VALUES LESS THAN (60) ENGINE = InnoDB, PARTITION pa7 VALUES LESS THAN (70) ENGINE = InnoDB, PARTITION pa8 VALUES LESS THAN (80) ENGINE = InnoDB, PARTITION pa9 VALUES LESS THAN (90) ENGINE = InnoDB, PARTITION pa10 VALUES LESS THAN (100) ENGINE = InnoDB, PARTITION pa11 VALUES LESS THAN MAXVALUE ENGINE = InnoDB) */
 show slave status;
 Slave_IO_State	Waiting for master to send event
 Master_Host	127.0.0.1

mysql-test/t/partition.test

@@ -1528,4 +1528,25 @@ PARTITION BY RANGE (b) (
 show create table t1;
 drop table t1, t2;
 
+#
+# Bug #32247 Test reports wrong value of "AUTO_INCREMENT" (on a partitioned InnoDB table)
+#
+
+CREATE TABLE t1(id MEDIUMINT NOT NULL AUTO_INCREMENT,
+                user CHAR(25), PRIMARY KEY(id))
+                   PARTITION BY RANGE(id)
+                   SUBPARTITION BY hash(id) subpartitions 2
+                   (PARTITION pa1 values less than (10),
+                    PARTITION pa2 values less than (20),
+                    PARTITION pa11 values less than MAXVALUE);
+--disable_query_log
+let $n= 15;
+while ($n)
+{
+  insert into t1 (user) values ('mysql');
+  dec $n;
+}
+--enable_query_log
+show create table t1;
+drop table t1;
 --echo End of 5.1 tests

sql/ha_partition.cc

@@ -1598,7 +1598,11 @@ int ha_partition::copy_partitions(ulonglong *copied, ulonglong *deleted)
 
 void ha_partition::update_create_info(HA_CREATE_INFO *create_info)
 {
-  m_file[0]->update_create_info(create_info);
+  info(HA_STATUS_AUTO);
+
+  if (!(create_info->used_fields & HA_CREATE_USED_AUTO))
+    create_info->auto_increment_value= stats.auto_increment_value;
+
   return;
 }
 

storage/archive/ha_archive.cc

@@ -357,7 +357,7 @@ ARCHIVE_SHARE *ha_archive::get_share(const char *table_name, int *rc)
     {
       DBUG_RETURN(NULL);
     }
-    stats.auto_increment_value= archive_tmp.auto_increment;
+    stats.auto_increment_value= archive_tmp.auto_increment + 1;
     share->rows_recorded= (ha_rows)archive_tmp.rows;
     share->crashed= archive_tmp.dirty;
     azclose(&archive_tmp);
@@ -586,9 +586,7 @@ int ha_archive::create(const char *name, TABLE *table_arg,
 
   DBUG_ENTER("ha_archive::create");
 
-  stats.auto_increment_value= (create_info->auto_increment_value ?
-                               create_info->auto_increment_value -1 :
-                               (ulonglong) 0);
+  stats.auto_increment_value= create_info->auto_increment_value;
 
   for (uint key= 0; key < table_arg->s->keys; key++)
   {
@@ -673,7 +671,8 @@ int ha_archive::create(const char *name, TABLE *table_arg,
       Yes you need to do this, because the starting value 
       for the autoincrement may not be zero.
     */
-    create_stream.auto_increment= stats.auto_increment_value;
+    create_stream.auto_increment= stats.auto_increment_value ?
+                                    stats.auto_increment_value - 1 : 0;
     if (azclose(&create_stream))
     {
       error= errno;
@@ -871,8 +870,8 @@ int ha_archive::write_row(uchar *buf)
     else
     {
       if (temp_auto > share->archive_write.auto_increment)
-        stats.auto_increment_value= share->archive_write.auto_increment= 
-          temp_auto;
+        stats.auto_increment_value=
+          (share->archive_write.auto_increment= temp_auto) + 1;
     }
   }
 
@@ -896,7 +895,7 @@ void ha_archive::get_auto_increment(ulonglong offset, ulonglong increment,
                                     ulonglong *first_value,
                                     ulonglong *nb_reserved_values)
 {
-  *nb_reserved_values= 1;
+  *nb_reserved_values= ULONGLONG_MAX;
   *first_value= share->archive_write.auto_increment + 1;
 }
 
@@ -1315,7 +1314,8 @@ int ha_archive::optimize(THD* thd, HA_CHECK_OPT* check_opt)
     if (!rc)
     {
       share->rows_recorded= 0;
-      stats.auto_increment_value= share->archive_write.auto_increment= 0;
+      stats.auto_increment_value= 1;
+      share->archive_write.auto_increment= 0;
       my_bitmap_map *org_bitmap= dbug_tmp_use_all_columns(table, table->read_set);
 
       while (!(rc= get_row(&archive, table->record[0])))
@@ -1332,8 +1332,8 @@ int ha_archive::optimize(THD* thd, HA_CHECK_OPT* check_opt)
             (ulonglong) field->val_int(table->record[0] +
                                        field->offset(table->record[0]));
           if (share->archive_write.auto_increment < auto_value)
-            stats.auto_increment_value= share->archive_write.auto_increment=
-              auto_value;
+            stats.auto_increment_value=
+              (share->archive_write.auto_increment= auto_value) + 1;
         }
       }
 
@@ -1418,18 +1418,9 @@ 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.
-      To make the output look like MyISAM we add 1 here.
-
-      This is not completely compatible with MYISAM though, since
-      MyISAM will record on "SHOW CREATE TABLE" the last position,
-      where we will report the original position the table was
-      created with.
-    */
-    create_info->auto_increment_value= stats.auto_increment_value + 1;
+    create_info->auto_increment_value= stats.auto_increment_value;
   }
 
   if (!(my_readlink(share->real_path, share->data_file_name, MYF(0))))
@@ -1494,7 +1485,7 @@ int ha_archive::info(uint flag)
     pthread_mutex_lock(&share->mutex);
     azflush(&archive, Z_SYNC_FLUSH);
     pthread_mutex_unlock(&share->mutex);
-    stats.auto_increment_value= archive.auto_increment;
+    stats.auto_increment_value= archive.auto_increment + 1;
   }
 
   DBUG_RETURN(0);