bzr push into mysql-5.1-bugteam branch (ingo.struewing:3513 to 3514) Bug#46339

[Ingo Struewing]

 3514 Ingo Struewing	2010-09-21 [merge]
      Bug#46339 - crash on REPAIR TABLE merge table USE_FRM
      Merge from saved bundle.

    modified:
      mysql-test/r/merge.result
      mysql-test/t/merge.test
      sql/sql_table.cc
 3513 Alfranio Correia	2010-09-17 [merge]
      merge mysql-5.1-bugteam (local) --> mysql-5.1-bugteam

    modified:
      mysql-test/suite/binlog/r/binlog_row_mix_innodb_myisam.result
      mysql-test/suite/binlog/r/binlog_stm_mix_innodb_myisam.result
      mysql-test/suite/rpl/r/rpl_begin_commit_rollback.result
      mysql-test/suite/rpl/r/rpl_innodb_mixed_dml.result
      sql/log.cc
=== modified file 'mysql-test/r/merge.result'
--- a/mysql-test/r/merge.result	2010-03-19 06:01:02 +0000
+++ b/mysql-test/r/merge.result	2010-04-26 13:44:10 +0000
@@ -2298,4 +2298,45 @@ t2 WHERE b SOUNDS LIKE e AND d = 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 noticed after reading const tables
 DROP TABLE t2, t1;
+#
+# Bug#46339 - crash on REPAIR TABLE merge table USE_FRM
+#
+DROP TABLE IF EXISTS m1, t1;
+CREATE TABLE t1 (c1 INT) ENGINE=MYISAM;
+CREATE TABLE m1 (c1 INT) ENGINE=MRG_MyISAM UNION=(t1) INSERT_METHOD=LAST;
+LOCK TABLE m1 READ;
+REPAIR TABLE m1 USE_FRM;
+Table	Op	Msg_type	Msg_text
+test.m1	repair	note	The storage engine for the table doesn't support repair
+UNLOCK TABLES;
+REPAIR TABLE m1 USE_FRM;
+Table	Op	Msg_type	Msg_text
+test.m1	repair	note	The storage engine for the table doesn't support repair
+DROP TABLE m1,t1;
+CREATE TABLE m1 (f1 BIGINT) ENGINE=MRG_MyISAM UNION(t1);
+REPAIR TABLE m1 USE_FRM;
+Table	Op	Msg_type	Msg_text
+test.m1	repair	Error	Can't open table
+test.m1	repair	error	Corrupt
+CREATE TABLE t1 (f1 BIGINT) ENGINE = MyISAM;
+REPAIR TABLE m1 USE_FRM;
+Table	Op	Msg_type	Msg_text
+test.m1	repair	note	The storage engine for the table doesn't support repair
+REPAIR TABLE m1;
+Table	Op	Msg_type	Msg_text
+test.m1	repair	note	The storage engine for the table doesn't support repair
+DROP TABLE m1, t1;
+CREATE TEMPORARY TABLE m1 (f1 BIGINT) ENGINE=MRG_MyISAM UNION(t1);
+REPAIR TABLE m1 USE_FRM;
+Table	Op	Msg_type	Msg_text
+test.m1	repair	Error	Table 'test.m1' doesn't exist
+test.m1	repair	error	Corrupt
+CREATE TEMPORARY TABLE t1 (f1 BIGINT) ENGINE=MyISAM;
+REPAIR TABLE m1 USE_FRM;
+Table	Op	Msg_type	Msg_text
+m1	repair	error	Cannot repair temporary table from .frm file
+REPAIR TABLE m1;
+Table	Op	Msg_type	Msg_text
+test.m1	repair	note	The storage engine for the table doesn't support repair
+DROP TABLE m1, t1;
 End of 5.1 tests

=== modified file 'mysql-test/t/merge.test'
--- a/mysql-test/t/merge.test	2010-03-19 06:01:02 +0000
+++ b/mysql-test/t/merge.test	2010-04-26 13:44:10 +0000
@@ -1705,4 +1705,82 @@ t2 WHERE b SOUNDS LIKE e AND d = 1;
 
 DROP TABLE t2, t1;
 
+--echo #
+--echo # Bug#46339 - crash on REPAIR TABLE merge table USE_FRM
+--echo #
+--disable_warnings
+DROP TABLE IF EXISTS m1, t1;
+--enable_warnings
+#
+# Test derived from a proposal of Shane Bester.
+#
+CREATE TABLE t1 (c1 INT) ENGINE=MYISAM;
+CREATE TABLE m1 (c1 INT) ENGINE=MRG_MyISAM UNION=(t1) INSERT_METHOD=LAST;
+#
+# REPAIR ... USE_FRM with LOCK TABLES.
+#
+LOCK TABLE m1 READ;
+REPAIR TABLE m1 USE_FRM;
+UNLOCK TABLES;
+#
+# REPAIR ... USE_FRM without LOCK TABLES.
+#
+# This statement crashed the server (Bug#46339).
+#
+REPAIR TABLE m1 USE_FRM;
+#
+DROP TABLE m1,t1;
+#
+# Test derived from a proposal of Matthias Leich.
+#
+# Base table is missing.
+#
+CREATE TABLE m1 (f1 BIGINT) ENGINE=MRG_MyISAM UNION(t1);
+#
+# This statement crashed the server (Bug#46339).
+#
+REPAIR TABLE m1 USE_FRM;
+#
+# Create base table.
+#
+CREATE TABLE t1 (f1 BIGINT) ENGINE = MyISAM;
+#
+# This statement crashed the server (Bug#46339).
+#
+REPAIR TABLE m1 USE_FRM;
+#
+# Normal repair as reference.
+#
+REPAIR TABLE m1;
+#
+# Cleanup.
+#
+DROP TABLE m1, t1;
+#
+# Same with temporary tables.
+#
+# Base table is missing.
+#
+CREATE TEMPORARY TABLE m1 (f1 BIGINT) ENGINE=MRG_MyISAM UNION(t1);
+#
+# This statement crashed the server (Bug#46339).
+#
+REPAIR TABLE m1 USE_FRM;
+#
+# Create base table.
+#
+CREATE TEMPORARY TABLE t1 (f1 BIGINT) ENGINE=MyISAM;
+#
+# This statement crashed the server (Bug#46339).
+#
+REPAIR TABLE m1 USE_FRM;
+#
+# Normal repair as reference.
+#
+REPAIR TABLE m1;
+#
+# Cleanup.
+#
+DROP TABLE m1, t1;
+
 --echo End of 5.1 tests

=== modified file 'sql/sql_table.cc'
--- a/sql/sql_table.cc	2010-09-16 10:51:08 +0000
+++ b/sql/sql_table.cc	2010-09-21 14:37:18 +0000
@@ -4416,9 +4416,6 @@ static int prepare_for_repair(THD *thd, 
     pthread_mutex_unlock(&LOCK_open);
   }
 
-  /* A MERGE table must not come here. */
-  DBUG_ASSERT(!table->child_l);
-
   /*
     REPAIR TABLE ... USE_FRM for temporary tables makes little sense.
   */


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