From: Date: October 12 2007 12:28pm Subject: bk commit into 5.1 tree (istruewing:1.2571) BUG#31210 List-Archive: http://lists.mysql.com/commits/35461 X-Bug: 31210 Message-Id: Below is the list of changes that have just been committed into a local 5.1 repository of istruewing. When istruewing does a push these changes will be propagated to the main repository and, within 24 hours after the push, to the public repository. For information on how to access the public repository see http://dev.mysql.com/doc/mysql/en/installing-source-tree.html ChangeSet@stripped, 2007-10-12 12:28:09+02:00, istruewing@stripped +3 -0 Bug#31210 - INSERT DELAYED crashes server when used on partitioned table Not to be pushed. Internal commit. It does just hide the problem. Trying INSERT DELAYED on a partitioned table, that has not been used right before, crashes the server. When a table is used for select or update, it is kept open for some time. This period I mean with "right before". Information about partitioning of a table is stored in form of a string in the .frm file. Parsing of this string requires a correctly set up lexical analyzer (lex). The partitioning code uses a new temporary instance of a lex. But it does still refer to the previously active lex. The delayd insert thread does not initialize its lex though... Added initialization for thd->lex before open table in the delayed thread. This hides the crash. But lex handling of the partition code may still need a fix. mysql-test/r/partition_hash.result@stripped, 2007-10-12 12:28:07+02:00, istruewing@stripped +4 -0 Bug#31210 - INSERT DELAYED crashes server when used on partitioned table Added test result mysql-test/t/partition_hash.test@stripped, 2007-10-12 12:28:07+02:00, istruewing@stripped +8 -0 Bug#31210 - INSERT DELAYED crashes server when used on partitioned table Added test sql/sql_insert.cc@stripped, 2007-10-12 12:28:07+02:00, istruewing@stripped +6 -1 Bug#31210 - INSERT DELAYED crashes server when used on partitioned table Added initialization for thd->lex before open table. diff -Nrup a/mysql-test/r/partition_hash.result b/mysql-test/r/partition_hash.result --- a/mysql-test/r/partition_hash.result 2007-04-04 16:26:24 +02:00 +++ b/mysql-test/r/partition_hash.result 2007-10-12 12:28:07 +02:00 @@ -183,3 +183,7 @@ c1 c2 c3 182 abc 2002-11-09 184 abc 2002-11-22 drop table t1; +CREATE TABLE t1 (c1 INT) ENGINE=MyISAM PARTITION BY HASH(c1) PARTITIONS 1; +INSERT DELAYED INTO t1 VALUES (1); +ERROR HY000: Table storage engine for 't1' doesn't have this option +DROP TABLE t1; diff -Nrup a/mysql-test/t/partition_hash.test b/mysql-test/t/partition_hash.test --- a/mysql-test/t/partition_hash.test 2007-07-02 18:08:23 +02:00 +++ b/mysql-test/t/partition_hash.test 2007-10-12 12:28:07 +02:00 @@ -144,3 +144,11 @@ select * from t1 where c3 between '2002- drop table t1; +# +# Bug#31210 - INSERT DELAYED crashes server when used on partitioned table +# +CREATE TABLE t1 (c1 INT) ENGINE=MyISAM PARTITION BY HASH(c1) PARTITIONS 1; +--error ER_ILLEGAL_HA +INSERT DELAYED INTO t1 VALUES (1); +DROP TABLE t1; + diff -Nrup a/sql/sql_insert.cc b/sql/sql_insert.cc --- a/sql/sql_insert.cc 2007-08-31 01:05:45 +02:00 +++ b/sql/sql_insert.cc 2007-10-12 12:28:07 +02:00 @@ -2264,7 +2264,12 @@ pthread_handler_t handle_delayed_insert( goto err; } - /* open table */ + /* + Open table requires an initialized lex in case the table is + partitioned. The .frm file contains a partial SQL string which is + parsed using a lex, that depends on initialized thd->lex. + */ + lex_start(thd); if (!(di->table=open_ltable(thd, &di->table_list, TL_WRITE_DELAYED, 0))) { thd->fatal_error(); // Abort waiting inserts