I first run the following statements to create tables.
create table t1 (`c1` bigint, key (`c1`));
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insert into t1 values (-2);
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create table t2 ( `c2` double unsigned );
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insert into t2 values (12.991);
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After creating tables, I repeat executing the following statement through the MariaDB CLI.
SELECT f6 FROM (SELECT DISTINCT `c1` AS `f6` FROM `t1`) AS `t1`
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JOIN (SELECT CHARSET(`c2`) AS `f5` FROM `t2`) AS `t3`
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ON (EXISTS (SELECT `c2` FROM `t2`)) AND
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(NOT ((CHARSET(`f5`)) NOT BETWEEN `f6` AND `f6`));
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After repeating several times (maybe 20 times), I lost the connection to the server.
Or try to run the following EXPLAIN query twice, I can get the same error.
EXPLAIN SELECT f6 FROM (SELECT DISTINCT `c1` AS `f6` FROM `t1`) AS `t1`
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JOIN (SELECT CHARSET(`c2`) AS `f5` FROM `t2`) AS `t3`
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ON (EXISTS (SELECT `c2` FROM `t2`)) AND
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(NOT ((CHARSET(`f5`)) NOT BETWEEN `f6` AND `f6`));
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The following trace is gotten from the log.
stack_bottom = 0x7f4c90082c38 thread_stack 0x49000
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Printing to addr2line failed
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mariadbd(my_print_stacktrace+0x32)[0x563dd110a7c2]
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mariadbd(handle_fatal_signal+0x488)[0x563dd0be3cf8]
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/lib/x86_64-linux-gnu/libc.so.6(+0x42520)[0x7f4ca74bd520]
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mariadbd(_Z15optimize_keyuseP4JOINP16st_dynamic_array+0x148)[0x563dd09b5088]
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mariadbd(+0x8ad551)[0x563dd09eb551]
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mariadbd(_ZN4JOIN14optimize_innerEv+0x1322)[0x563dd09f07e2]
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mariadbd(_ZN4JOIN8optimizeEv+0xda)[0x563dd09f0e2a]
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mariadbd(+0x7ec60c)[0x563dd092a60c]
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mariadbd(_Z27mysql_handle_single_derivedP3LEXP10TABLE_LISTj+0x95)[0x563dd0929e35]
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mariadbd(_ZN4JOIN14optimize_innerEv+0xb27)[0x563dd09effe7]
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mariadbd(_ZN4JOIN8optimizeEv+0xda)[0x563dd09f0e2a]
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mariadbd(_Z12mysql_selectP3THDP10TABLE_LISTR4ListI4ItemEPS4_jP8st_orderS9_S7_S9_yP13select_resultP18st_select_lex_unitP13st_select_lex+0xd1)[0x563dd09f0f21]
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mariadbd(_Z13handle_selectP3THDP3LEXP13select_resulty+0x154)[0x563dd09f1774]
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mariadbd(+0x826f55)[0x563dd0964f55]
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mariadbd(_Z21mysql_execute_commandP3THDb+0x419e)[0x563dd0973f0e]
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mariadbd(_Z11mysql_parseP3THDPcjP12Parser_state+0x1e7)[0x563dd0975237]
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mariadbd(_Z16dispatch_command19enum_server_commandP3THDPcjb+0x14bd)[0x563dd0977a1d]
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mariadbd(_Z10do_commandP3THDb+0x138)[0x563dd0979818]
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mariadbd(_Z24do_handle_one_connectionP7CONNECTb+0x3bf)[0x563dd0aa13af]
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mariadbd(handle_one_connection+0x5d)[0x563dd0aa16fd]
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mariadbd(+0xcd1906)[0x563dd0e0f906]
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/lib/x86_64-linux-gnu/libc.so.6(+0x94ac3)[0x7f4ca750fac3]
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/lib/x86_64-linux-gnu/libc.so.6(+0x126a40)[0x7f4ca75a1a40]
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Trying to get some variables.
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Some pointers may be invalid and cause the dump to abort.
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Bug
Critical
