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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10.2(EOL)
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None
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10.2.10, 10.2.12
Description
CREATE TABLE t1 (i INT); |
INSERT INTO t1 VALUES (1),(2); |
SELECT DISTINCT ROW_NUMBER() OVER(), i FROM t1 WHERE 0; |
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10.2 bc75c57cfc18be64f167d91c431076f581b0382b |
#3 <signal handler called>
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#4 0x00007fe7a608f32e in st_join_table::remove_duplicates (this=0x7fe78c0136e0) at /data/src/10.2/sql/sql_select.cc:21785
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#5 0x00007fe7a608965d in join_init_read_record (tab=0x7fe78c0136e0) at /data/src/10.2/sql/sql_select.cc:19449
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#6 0x00007fe7a609bf7e in AGGR_OP::end_send (this=0x7fe78c013c20) at /data/src/10.2/sql/sql_select.cc:26432
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#7 0x00007fe7a6087192 in sub_select_postjoin_aggr (join=0x7fe78c013020, join_tab=0x7fe78c0136e0, end_of_records=true) at /data/src/10.2/sql/sql_select.cc:18263
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#8 0x00007fe7a6086cce in do_select (join=0x7fe78c013020, procedure=0x0) at /data/src/10.2/sql/sql_select.cc:18094
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#9 0x00007fe7a6061527 in JOIN::exec_inner (this=0x7fe78c013020) at /data/src/10.2/sql/sql_select.cc:3477
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#10 0x00007fe7a60609f6 in JOIN::exec (this=0x7fe78c013020) at /data/src/10.2/sql/sql_select.cc:3278
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#11 0x00007fe7a6061b9f in mysql_select (thd=0x7fe78c000b00, tables=0x7fe78c012878, wild_num=0, fields=..., conds=0x7fe78c012ea8, og_num=0, order=0x0, group=0x0, having=0x0, proc_param=0x0, select_options=2147748609, result=0x7fe78c013000, unit=0x7fe78c0045e8, select_lex=0x7fe78c004d20) at /data/src/10.2/sql/sql_select.cc:3672
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#12 0x00007fe7a60564ea in handle_select (thd=0x7fe78c000b00, lex=0x7fe78c004520, result=0x7fe78c013000, setup_tables_done_option=0) at /data/src/10.2/sql/sql_select.cc:373
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#13 0x00007fe7a60223c8 in execute_sqlcom_select (thd=0x7fe78c000b00, all_tables=0x7fe78c012878) at /data/src/10.2/sql/sql_parse.cc:6443
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#14 0x00007fe7a6018407 in mysql_execute_command (thd=0x7fe78c000b00) at /data/src/10.2/sql/sql_parse.cc:3458
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#15 0x00007fe7a6025d88 in mysql_parse (thd=0x7fe78c000b00, rawbuf=0x7fe78c012378 "SELECT DISTINCT ROW_NUMBER() OVER(), i FROM t1 WHERE 0", length=54, parser_state=0x7fe79dc0f200, is_com_multi=false, is_next_command=false) at /data/src/10.2/sql/sql_parse.cc:7879
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#16 0x00007fe7a6013e34 in dispatch_command (command=COM_QUERY, thd=0x7fe78c000b00, packet=0x7fe78c168011 "", packet_length=54, is_com_multi=false, is_next_command=false) at /data/src/10.2/sql/sql_parse.cc:1817
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#17 0x00007fe7a6012775 in do_command (thd=0x7fe78c000b00) at /data/src/10.2/sql/sql_parse.cc:1362
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#18 0x00007fe7a615e4e7 in do_handle_one_connection (connect=0x7fe7a9a8b760) at /data/src/10.2/sql/sql_connect.cc:1354
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#19 0x00007fe7a615e274 in handle_one_connection (arg=0x7fe7a9a8b760) at /data/src/10.2/sql/sql_connect.cc:1260
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#20 0x00007fe7a64a5922 in pfs_spawn_thread (arg=0x7fe7a9b2df40) at /data/src/10.2/storage/perfschema/pfs.cc:1862
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#21 0x00007fe7a5635064 in start_thread (arg=0x7fe79dc10700) at pthread_create.c:309
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#22 0x00007fe7a381a62d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111
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Attachments
Issue Links
- relates to
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- Closed
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- Closed
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Example #3:
select max(b), row_number() over (order by a ) from t1 where 1 = 2 ;join_tab[0]// join->first_select = sub_select_postjoin_aggrtable= <temp. table>window_funcs_step = <pointer>The join_tab does not have a sub_select call. Execution starts directly with sub_select_postjoin_aggr call. Inside that call, a record is written into the temp. table. Then, window function computation step is performed.
select distinct max(b), row_number() over (order by a ) from t1 where 1 = 2 ;has the same data structure as above but also join_tab[0].distinct=true.