Details
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Bug
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Status: Closed (View Workflow)
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Major
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Resolution: Fixed
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10.4(EOL)
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None
Description
SET optimizer_switch='condition_pushdown_from_having=on'; |
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CREATE TABLE t1 (a INT); |
INSERT INTO t1 VALUES (1),(2); |
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CREATE TABLE t2 (b INT); |
INSERT INTO t2 VALUES (2),(3); |
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SELECT a FROM t1 GROUP BY a HAVING a = 8 OR a = ( SELECT MIN(b) FROM t2 ); |
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# Cleanup
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DROP TABLE t1, t2; |
10.4 a3b63b8d |
mysqld: /data/src/10.4/sql/item_func.cc:328: virtual bool Item_func::fix_fields(THD*, Item**): Assertion `used_tables_cache == 0' failed.
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191201 0:29:59 [ERROR] mysqld got signal 6 ;
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#7 0x00007ff69f024f12 in __GI___assert_fail (assertion=0x5624c9042ff8 "used_tables_cache == 0", file=0x5624c9042fd8 "/data/src/10.4/sql/item_func.cc", line=328, function=0x5624c9043f60 <Item_func::fix_fields(THD*, Item**)::__PRETTY_FUNCTION__> "virtual bool Item_func::fix_fields(THD*, Item**)") at assert.c:101
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#8 0x00005624c8592648 in Item_func::fix_fields (this=0x7ff650073530, thd=0x7ff650000af0, ref=0x7ff6500754b8) at /data/src/10.4/sql/item_func.cc:328
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#9 0x00005624c80963eb in Item::fix_fields_if_needed (this=0x7ff650073530, thd=0x7ff650000af0, ref=0x7ff6500754b8) at /data/src/10.4/sql/item.h:956
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#10 0x00005624c8096419 in Item::fix_fields_if_needed_for_scalar (this=0x7ff650073530, thd=0x7ff650000af0, ref=0x7ff6500754b8) at /data/src/10.4/sql/item.h:960
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#11 0x00005624c811aa67 in Item::fix_fields_if_needed_for_bool (this=0x7ff650073530, thd=0x7ff650000af0, ref=0x7ff6500754b8) at /data/src/10.4/sql/item.h:964
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#12 0x00005624c85609c4 in Item_cond::fix_fields (this=0x7ff6500753c0, thd=0x7ff650000af0, ref=0x0) at /data/src/10.4/sql/item_cmpfunc.cc:4845
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#13 0x00005624c823123e in make_cond_for_table_from_pred (thd=0x7ff650000af0, root_cond=0x7ff650015f18, cond=0x7ff650015f18, tables=4611686018427387905, used_table=0, join_tab_idx_arg=0, exclude_expensive_cond=false, retain_ref_cond=false, is_top_and_level=true) at /data/src/10.4/sql/sql_select.cc:22180
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#14 0x00005624c8230d65 in make_cond_for_table (thd=0x7ff650000af0, cond=0x7ff650015f18, tables=4611686018427387905, used_table=0, join_tab_idx_arg=0, exclude_expensive_cond=false, retain_ref_cond=false) at /data/src/10.4/sql/sql_select.cc:22075
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#15 0x00005624c81fab63 in JOIN::add_having_as_table_cond (this=0x7ff650016928, tab=0x7ff6500747c0) at /data/src/10.4/sql/sql_select.cc:3035
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#16 0x00005624c81fd094 in JOIN::make_aggr_tables_info (this=0x7ff650016928) at /data/src/10.4/sql/sql_select.cc:3582
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#17 0x00005624c81fa79f in JOIN::optimize_stage2 (this=0x7ff650016928) at /data/src/10.4/sql/sql_select.cc:2958
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#18 0x00005624c81f7fee in JOIN::optimize_inner (this=0x7ff650016928) at /data/src/10.4/sql/sql_select.cc:2256
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#19 0x00005624c81f595c in JOIN::optimize (this=0x7ff650016928) at /data/src/10.4/sql/sql_select.cc:1593
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#20 0x00005624c8200c60 in mysql_select (thd=0x7ff650000af0, tables=0x7ff6500137f8, wild_num=0, fields=..., conds=0x0, og_num=1, order=0x0, group=0x7ff650013fd8, having=0x7ff650015f18, proc_param=0x0, select_options=2147748608, result=0x7ff650016900, unit=0x7ff650004a20, select_lex=0x7ff650013230) at /data/src/10.4/sql/sql_select.cc:4628
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#21 0x00005624c81f0958 in handle_select (thd=0x7ff650000af0, lex=0x7ff650004958, result=0x7ff650016900, setup_tables_done_option=0) at /data/src/10.4/sql/sql_select.cc:420
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#22 0x00005624c81b70d1 in execute_sqlcom_select (thd=0x7ff650000af0, all_tables=0x7ff6500137f8) at /data/src/10.4/sql/sql_parse.cc:6360
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#23 0x00005624c81ac77f in mysql_execute_command (thd=0x7ff650000af0) at /data/src/10.4/sql/sql_parse.cc:3899
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#24 0x00005624c81bb1dd in mysql_parse (thd=0x7ff650000af0, rawbuf=0x7ff650013138 "SELECT a FROM t1 GROUP BY a HAVING a = 8 OR a = ( SELECT MIN(b) FROM t2 )", length=73, parser_state=0x7ff6983f5170, is_com_multi=false, is_next_command=false) at /data/src/10.4/sql/sql_parse.cc:7901
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#25 0x00005624c81a6382 in dispatch_command (command=COM_QUERY, thd=0x7ff650000af0, packet=0x7ff65019e7c1 "SELECT a FROM t1 GROUP BY a HAVING a = 8 OR a = ( SELECT MIN(b) FROM t2 )", packet_length=73, is_com_multi=false, is_next_command=false) at /data/src/10.4/sql/sql_parse.cc:1842
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#26 0x00005624c81a4a0f in do_command (thd=0x7ff650000af0) at /data/src/10.4/sql/sql_parse.cc:1360
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#27 0x00005624c832d3cd in do_handle_one_connection (connect=0x5624cc555500) at /data/src/10.4/sql/sql_connect.cc:1412
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#28 0x00005624c832d11c in handle_one_connection (arg=0x5624cc555500) at /data/src/10.4/sql/sql_connect.cc:1316
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#29 0x00005624c8d2f2ff in pfs_spawn_thread (arg=0x5624cc4d3440) at /data/src/10.4/storage/perfschema/pfs.cc:1862
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#30 0x00007ff6a0b9a4a4 in start_thread (arg=0x7ff6983f6700) at pthread_create.c:456
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#31 0x00007ff69f0e1d0f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97
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Reproducible with at least MyISAM, InnoDB, Aria.
Reproducible on 10.4-10.5 debug builds.
EXPLAIN on a debug build also crashes.
Not reproducible with condition_pushdown_from_having=off.
No obvious problem on a non-debug build.
EXPLAIN on a non-debug build returns
id select_type table type possible_keys key key_len ref rows filtered Extra
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1 PRIMARY t1 ALL NULL NULL NULL NULL 2 100.00 Using temporary; Using filesort
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2 SUBQUERY t2 ALL NULL NULL NULL NULL 2 100.00
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Warnings:
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Note 1003 /* select#1 */ select `test`.`t1`.`a` AS `a` from `test`.`t1` group by `test`.`t1`.`a` having 1
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Attachments
Issue Links
- causes
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MDEV-29363 Constant subquery causing a crash in pushdown optimization
- Closed
- relates to
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MDEV-25650 Assertion `used_tables_cache == 0' failed in Item_func::fix_fields
- Open