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70 lines
2.0 KiB
70 lines
2.0 KiB
3 months ago
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--source include/have_debug.inc
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#
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# Bug #37627: Killing query with sum(exists()) or avg(exists()) reproducibly
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# crashes server
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#
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CREATE TABLE t1(id INT);
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INSERT INTO t1 VALUES (1),(2),(3),(4);
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INSERT INTO t1 SELECT a.id FROM t1 a,t1 b,t1 c,t1 d;
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# Setup the mysqld to crash at certain point
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SET @orig_debug = @@debug;
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SET SESSION debug="d,subselect_exec_fail";
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SELECT SUM(EXISTS(SELECT RAND() FROM t1)) FROM t1;
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SELECT REVERSE(EXISTS(SELECT RAND() FROM t1));
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SET SESSION debug=@orig_debug;
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DROP TABLE t1;
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--echo #
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--echo # Bug#21383882 ASSERTION FAILED: 0 IN SELECT_LEX::PRINT()
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--echo #
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CREATE TABLE t1(a INT);
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INSERT INTO t1 VALUES(1),(1);
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--error ER_SUBQUERY_NO_1_ROW
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SELECT ((SELECT 1 FROM t1) IN (SELECT 1 FROM t1)) - (11111111111111111111);
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DROP TABLE t1;
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--echo #
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--echo # Bug#26679495: SIG 11 IN SUBSELECT_HASH_SJ_ENGINE::CLEANUP
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--echo #
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CREATE TABLE t (x INT);
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INSERT INTO t VALUES (1), (2), (3);
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ANALYZE TABLE t;
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--let $query= SELECT * FROM t WHERE x IN (SELECT COUNT(*) FROM t GROUP BY x)
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--echo # The subquery should be materialized so that we
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--echo # use subselect_hash_sj_engine.
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--eval EXPLAIN $query
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--eval $query
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--echo # Execute the query with a simulated error in
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--echo # subselect_hash_sj_engine::setup().
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SET DEBUG='+d,hash_semijoin_fail_in_setup';
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--error ER_UNKNOWN_ERROR
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--eval $query
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SET DEBUG='-d,hash_semijoin_fail_in_setup';
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DROP TABLE t;
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--echo #
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--echo # Bug#26679983: SIG 11 IN MAKE_JOIN_READINFO|SQL/SQL_SELECT.CC
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--echo #
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CREATE TABLE t (x INT);
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INSERT INTO t VALUES (1), (2), (3);
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ANALYZE TABLE t;
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--let $query= SELECT * FROM t WHERE x IN (SELECT x FROM t)
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--echo # We want nested loop with duplicate weedout to reproduce the bug.
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SET optimizer_switch = 'firstmatch=off,materialization=off';
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--eval EXPLAIN $query
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--sorted_result
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--eval $query
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--echo # Execute the query with a simulated error in
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--echo # create_duplicate_weedout_tmp_table().
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SET DEBUG='+d,create_duplicate_weedout_tmp_table_error';
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--error ER_UNKNOWN_ERROR
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--eval $query
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SET DEBUG='-d,create_duplicate_weedout_tmp_table_error';
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DROP TABLE t;
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SET optimizer_switch = DEFAULT;
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