Details
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Bug
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Status: Closed (View Workflow)
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Critical
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Resolution: Fixed
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N/A
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None
Description
Extra locks required upon INSERT into table with auto-partitioning; Assertion `thd->transaction.stmt.is_empty() || thd->in_sub_stmt' failed
In the test case below INSERT works immediately, but if the AUTO clause is added to partitioning, INSERT waits for lock_wait_timeout seconds. Apparently, INSERT wants an extra lock for auto-partitioned tables. I'm not sure it was intended.
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Test case without auto-partitioning |
--source include/have_partition.inc
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--source include/have_innodb.inc
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CREATE TABLE t1 (a INT) ENGINE=InnoDB WITH SYSTEM VERSIONING PARTITION BY system_time INTERVAL 4 DAY; |
START TRANSACTION; |
SELECT * FROM t1; |
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--connect (con1,localhost,root,,test)
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INSERT INTO t1 VALUES (1); |
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# Cleanup
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--disconnect con1
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--connection default
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DROP TABLE t1; |
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Test case with auto-partitioning |
--source include/have_partition.inc
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--source include/have_innodb.inc
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CREATE TABLE t1 (a INT) ENGINE=InnoDB WITH SYSTEM VERSIONING PARTITION BY system_time INTERVAL 4 DAY AUTO; |
START TRANSACTION; |
SELECT * FROM t1; |
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--connect (con1,localhost,root,,test)
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INSERT INTO t1 VALUES (1); |
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# Cleanup
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--disconnect con1
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--connection default
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DROP TABLE t1; |
If we extend the test case a little, it causes an assertion failure. It doesn't happen without auto-partitioning.
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Test case for assertion failure |
--source include/have_partition.inc
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--source include/have_innodb.inc
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CREATE TABLE t1 (a INT) ENGINE=InnoDB WITH SYSTEM VERSIONING PARTITION BY system_time INTERVAL 4 DAY AUTO; |
START TRANSACTION; |
SELECT * FROM t1; |
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--connect (con1,localhost,root,,test)
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SET lock_wait_timeout= 1; |
--error ER_LOCK_WAIT_TIMEOUT
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INSERT INTO t1 VALUES (1); |
SELECT * FROM t1; |
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# Cleanup
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--disconnect con1
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--connection default
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DROP TABLE t1; |
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bb-10.5-midenok-MENT-654 7db57b2 |
mysqld: /data/src/bb-10.5-midenok-MENT-654/sql/sql_parse.cc:3328: int mysql_execute_command(THD*): Assertion `thd->transaction.stmt.is_empty() || thd->in_sub_stmt' failed.
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200330 1:21:14 [ERROR] mysqld got signal 6 ;
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#7 0x00007fa122ab6102 in __GI___assert_fail (assertion=0x55b1d57c8cc0 "thd->transaction.stmt.is_empty() || thd->in_sub_stmt", file=0x55b1d57c6ee0 "/data/src/bb-10.5-midenok-MENT-654/sql/sql_parse.cc", line=3328, function=0x55b1d57ccf60 <mysql_execute_command(THD*)::__PRETTY_FUNCTION__> "int mysql_execute_command(THD*)") at assert.c:101
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#8 0x000055b1d38b77ed in mysql_execute_command (thd=0x62b0000d9270) at /data/src/bb-10.5-midenok-MENT-654/sql/sql_parse.cc:3328
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#9 0x000055b1d38d94f7 in mysql_parse (thd=0x62b0000d9270, rawbuf=0x62b0000a8290 "SELECT * FROM t1", length=16, parser_state=0x7fa114c13a60, is_com_multi=false, is_next_command=false) at /data/src/bb-10.5-midenok-MENT-654/sql/sql_parse.cc:7999
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#10 0x000055b1d38ae414 in dispatch_command (command=COM_QUERY, thd=0x62b0000d9270, packet=0x6290002d0271 "SELECT * FROM t1", packet_length=16, is_com_multi=false, is_next_command=false) at /data/src/bb-10.5-midenok-MENT-654/sql/sql_parse.cc:1846
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#11 0x000055b1d38aade7 in do_command (thd=0x62b0000d9270) at /data/src/bb-10.5-midenok-MENT-654/sql/sql_parse.cc:1364
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#12 0x000055b1d3ccb034 in do_handle_one_connection (connect=0x6100000044b0, put_in_cache=true) at /data/src/bb-10.5-midenok-MENT-654/sql/sql_connect.cc:1422
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#13 0x000055b1d3cca8ca in handle_one_connection (arg=0x6100000044b0) at /data/src/bb-10.5-midenok-MENT-654/sql/sql_connect.cc:1319
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#14 0x000055b1d49b8de3 in pfs_spawn_thread (arg=0x6160000327f0) at /data/src/bb-10.5-midenok-MENT-654/storage/perfschema/pfs.cc:1862
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#15 0x00007fa12333afa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
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#16 0x00007fa122b7f4cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
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