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When using tables with compressed data types and partitions, server crashes on select/update/delete statements, if where clause contains "=", with partitions by key and by range, both with InnoDB and MyISAM engines,
CREATE TABLE t1 (a VARCHAR(1000) COMPRESSED)
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PARTITION BY RANGE COLUMNS (a) (
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PARTITION p0 VALUES LESS THAN (MAXVALUE));
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INSERT INTO t1 VALUES (REPEAT('a', 100)), (REPEAT('v', 200)), (REPEAT('z', 300)), (REPEAT('k', 500));
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SELECT * FROM t1 where a="a";
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stack trace with 10.3.1-MariaDB-debug, commit 9c85ad8d105e74baae0b6aba0db01b4d6aac7ba6
Thread 1 (Thread 0x7f6b2627a700 (LWP 31720)):
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#0 __pthread_kill (threadid=<optimized out>, signo=6) at ../sysdeps/unix/sysv/linux/pthread_kill.c:62
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#1 0x000055f8cb348ea6 in my_write_core (sig=6) at /home/alice/git/10.3.sv/mysys/stacktrace.c:477
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#2 0x000055f8cabd3ca5 in handle_fatal_signal (sig=6) at /home/alice/git/10.3.sv/sql/signal_handler.cc:299
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#3 <signal handler called>
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#4 0x00007f6b2bfbf428 in __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:54
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#5 0x00007f6b2bfc102a in __GI_abort () at abort.c:89
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#6 0x00007f6b2bfb7bd7 in __assert_fail_base (fmt=<optimized out>, assertion=assertion@entry=0x55f8cb505028 "0", file=file@entry=0x55f8cb504fe0 "/home/alice/git/10.3.sv/sql/field.h", line=line@entry=3213, function=function@entry=0x55f8cb50a840 <Field_varstring_compressed::get_key_image(unsigned char*, unsigned int, Field::imagetype)::__PRETTY_FUNCTION__> "virtual uint Field_varstring_compressed::get_key_image(uchar*, uint, Field::imagetype)") at assert.c:92
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#7 0x00007f6b2bfb7c82 in __GI___assert_fail (assertion=0x55f8cb505028 "0", file=0x55f8cb504fe0 "/home/alice/git/10.3.sv/sql/field.h", line=3213, function=0x55f8cb50a840 <Field_varstring_compressed::get_key_image(unsigned char*, unsigned int, Field::imagetype)::__PRETTY_FUNCTION__> "virtual uint Field_varstring_compressed::get_key_image(uchar*, uint, Field::imagetype)") at assert.c:101
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#8 0x000055f8cabc7aa9 in Field_varstring_compressed::get_key_image (this=0x7f6b1403b398, buff=0x7f6b14044ab1 '\245' <repeats 200 times>..., length=1000, type_arg=Field::itRAW) at /home/alice/git/10.3.sv/sql/field.h:3213
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#9 0x000055f8cad2cdac in Item_bool_func::get_mm_leaf (this=0x7f6b14015c00, param=0x7f6b26277b90, field=0x7f6b1403b398, key_part=0x7f6b14044218, type=Item_func::EQ_FUNC, value=0x7f6b140151f0) at /home/alice/git/10.3.sv/sql/opt_range.cc:8123
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#10 0x000055f8cad2bdfc in Item_bool_func::get_mm_parts (this=0x7f6b14015c00, param=0x7f6b26277b90, field=0x7f6b1403b398, type=Item_func::EQ_FUNC, value=0x7f6b140151f0) at /home/alice/git/10.3.sv/sql/opt_range.cc:7841
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#11 0x000055f8cad2bb4d in Item_equal::get_mm_tree (this=0x7f6b14015c00, param=0x7f6b26277b90, cond_ptr=0x7f6b26277ae8) at /home/alice/git/10.3.sv/sql/opt_range.cc:7796
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#12 0x000055f8cad212be in prune_partitions (thd=0x7f6b14000b00, table=0x7f6b1403c310, pprune_cond=0x7f6b14015c00) at /home/alice/git/10.3.sv/sql/opt_range.cc:3483
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#13 0x000055f8ca96fe0a in JOIN::optimize_inner (this=0x7f6b140154d0) at /home/alice/git/10.3.sv/sql/sql_select.cc:1403
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#14 0x000055f8ca96eb5e in JOIN::optimize (this=0x7f6b140154d0) at /home/alice/git/10.3.sv/sql/sql_select.cc:1084
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#15 0x000055f8ca9778c8 in mysql_select (thd=0x7f6b14000b00, tables=0x7f6b14014ac8, wild_num=1, fields=..., conds=0x7f6b14015280, og_num=0, order=0x0, group=0x0, having=0x0, proc_param=0x0, select_options=2147748608, result=0x7f6b140154b0, unit=0x7f6b140046b8, select_lex=0x7f6b14004df0) at /home/alice/git/10.3.sv/sql/sql_select.cc:3651
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#16 0x000055f8ca96c483 in handle_select (thd=0x7f6b14000b00, lex=0x7f6b140045f0, result=0x7f6b140154b0, setup_tables_done_option=0) at /home/alice/git/10.3.sv/sql/sql_select.cc:373
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#17 0x000055f8ca9388e8 in execute_sqlcom_select (thd=0x7f6b14000b00, all_tables=0x7f6b14014ac8) at /home/alice/git/10.3.sv/sql/sql_parse.cc:6450
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#18 0x000055f8ca92e9bc in mysql_execute_command (thd=0x7f6b14000b00) at /home/alice/git/10.3.sv/sql/sql_parse.cc:3574
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#19 0x000055f8ca93c290 in mysql_parse (thd=0x7f6b14000b00, rawbuf=0x7f6b140148d8 "SELECT * FROM t1 where a=\"a\"", length=28, parser_state=0x7f6b26279210, is_com_multi=false, is_next_command=false) at /home/alice/git/10.3.sv/sql/sql_parse.cc:7897
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#20 0x000055f8ca929d41 in dispatch_command (command=COM_QUERY, thd=0x7f6b14000b00, packet=0x7f6b14165d01 "SELECT * FROM t1 where a=\"a\"", packet_length=28, is_com_multi=false, is_next_command=false) at /home/alice/git/10.3.sv/sql/sql_parse.cc:1814
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#21 0x000055f8ca9286de in do_command (thd=0x7f6b14000b00) at /home/alice/git/10.3.sv/sql/sql_parse.cc:1377
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#22 0x000055f8caa740e2 in do_handle_one_connection (connect=0x55f8ce0828a0) at /home/alice/git/10.3.sv/sql/sql_connect.cc:1354
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#23 0x000055f8caa73e62 in handle_one_connection (arg=0x55f8ce0828a0) at /home/alice/git/10.3.sv/sql/sql_connect.cc:1260
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#24 0x000055f8cae0ba52 in pfs_spawn_thread (arg=0x55f8ce08ac70) at /home/alice/git/10.3.sv/storage/perfschema/pfs.cc:1862
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#25 0x00007f6b2cbfc6ba in start_thread (arg=0x7f6b2627a700) at pthread_create.c:333
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#26 0x00007f6b2c0913dd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109
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Bug is created to track whether it will be fixed or disabled. If fixed, then test case will be added in MTR later.
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