Fix bug in ALTER TABLE on a TEMPORARY InnoDB table.

Docs/manual.texi:
  Changelog
mysql-test/mysql-test-run.sh:
  Change shutdown to 20 seconds for slow systems
mysql-test/r/innodb.result:
  Testcase for found bug
mysql-test/t/innodb.test:
  Testcase for found bug

Docs/manual.texi

@@ -46852,6 +46852,8 @@ Fixed bug with BDB tables and keys on @code{BLOB}'s.
 Fixed bug in @code{MERGE} tables on OS with 32 bit file pointers.
 @item
 Fixed bug in @code{TIME_TO_SEC()} when using negative values.
+@item
+Fixed core dump bug in @code{ALTER TABLE} on a @code{TEMPORARY} InnoDB table.
 @end itemize
 
 @node News-3.23.44, News-3.23.43, News-3.23.45, News-3.23.x

mysql-test/mysql-test-run.sh

@@ -622,7 +622,7 @@ stop_slave ()
 {
   if [ x$SLAVE_RUNNING = x1 ]
   then
-    $MYSQLADMIN --no-defaults --socket=$SLAVE_MYSOCK -u root -O shutdown_timeout=10 shutdown
+    $MYSQLADMIN --no-defaults --socket=$SLAVE_MYSOCK -u root -O shutdown_timeout=20 shutdown
     if [ $? != 0 ] && [ -f $SLAVE_MYPID ]
     then # try harder!
      $ECHO "slave not cooperating with mysqladmin, will try manual kill"
@@ -644,7 +644,7 @@ stop_master ()
 {
   if [ x$MASTER_RUNNING = x1 ]
   then
-    $MYSQLADMIN --no-defaults --socket=$MASTER_MYSOCK -u root -O shutdown_timeout=10 shutdown
+    $MYSQLADMIN --no-defaults --socket=$MASTER_MYSOCK -u root -O shutdown_timeout=20 shutdown
     if [ $? != 0 ] && [ -f $MASTER_MYPID ]
     then # try harder!
      $ECHO "master not cooperating with mysqladmin, will try manual kill"

mysql-test/r/innodb.result

@@ -475,6 +475,10 @@ a
 1
 2
 4
+a	b
+1	NULL
+2	NULL
+4	NULL
 id	name	value	uid
 1	one	one value	101
 3	three	three value	103

mysql-test/t/innodb.test

@@ -489,6 +489,8 @@ insert into t1 values (NULL),(NULL),(NULL);
 delete from t1 where a=3;
 insert into t1 values (NULL);
 select * from t1;
+alter table t1 add b int;
+select * from t1;
 drop table t1;
 
 #Slashdot bug
@@ -511,4 +513,3 @@ set insert_id=6;
 replace into t1 (value,name,uid) values ('other value','two',102);
 select * from t1;
 drop table t1;
-

sql/sql_table.cc

@@ -1509,6 +1509,12 @@ int mysql_alter_table(THD *thd,char *new_db, char *new_name,
       my_free((gptr) new_table,MYF(0));
       goto err;
     }
+    /* Close lock if this is a transactional table */
+    if (thd->lock)
+    {
+      mysql_unlock_tables(thd, thd->lock);
+      thd->lock=0;
+    }
     /* Remove link to old table and rename the new one */
     close_temporary_table(thd,table->table_cache_key,table_name);
     if (rename_temporary_table(thd, new_table, new_db, new_name))