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101 lines
2.4 KiB
101 lines
2.4 KiB
5 months ago
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# The include statement below is a temp one for tests that are yet to
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#be ported to run with InnoDB,
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#but needs to be kept for tests that would need MyISAM in future.
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--source include/force_myisam_default.inc
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--source include/have_myisam.inc
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--source include/big_test.inc
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# As per discussion with Olav, skipping this test from valgrind runs
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--source include/not_valgrind.inc
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# Times out with ubsan
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--source include/not_ubsan.inc
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--echo #
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--echo # Bug 12365385 STRAIGHT_JOIN QUERY QUICKLY EXHAUSTS SYSTEM+VIRT.
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--echo # MEMORY LEADING TO SYSTEM CRASH
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--echo #
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# This test will cause the server to allocate many GBs of memory and most
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# likely run out of memory if this bug gets re-introduced.
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# A reduced version of this test is include in include/mrr_tests.inc
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CREATE TABLE ten (a INTEGER);
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INSERT INTO ten VALUES (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
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CREATE TABLE hundred (a INTEGER);
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INSERT INTO hundred
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SELECT a1.a + 10 * a2.a FROM ten a1, ten a2;
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CREATE TABLE thousand (a INTEGER);
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INSERT INTO thousand
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SELECT a1.a + 10 * a2.a + 100 * a3.a FROM ten a1, ten a2, ten a3;
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CREATE TABLE t1 (
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pk INTEGER NOT NULL,
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i1 INTEGER NOT NULL,
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c1 VARCHAR(10) NOT NULL,
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PRIMARY KEY (pk)
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) charset latin1;
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INSERT INTO t1
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SELECT a, 1, 'MySQL' FROM thousand;
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CREATE TABLE t2 (
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pk INTEGER NOT NULL,
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c1 VARCHAR(10) NOT NULL,
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c2 varchar(10) NOT NULL,
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PRIMARY KEY (pk)
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) charset latin1;
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INSERT INTO t2
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SELECT a, 'MySQL', 'MySQL' FROM ten;
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CREATE TABLE t3 (
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pk INTEGER NOT NULL,
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c1 VARCHAR(10) NOT NULL,
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PRIMARY KEY (pk)
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) charset latin1;
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INSERT INTO t3
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SELECT a, 'MySQL' FROM hundred;
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CREATE TABLE t4 (
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pk int(11) NOT NULL,
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c1_key varchar(10) CHARACTER SET utf8 NOT NULL,
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c2 varchar(10) NOT NULL,
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c3 varchar(10) NOT NULL,
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PRIMARY KEY (pk),
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KEY k1 (c1_key)
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) charset latin1;
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# t4 is empty
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CREATE TABLE t5 (
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pk INTEGER NOT NULL,
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c1 VARCHAR(10) NOT NULL,
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PRIMARY KEY (pk)
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) charset latin1;
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INSERT INTO t5
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SELECT a, 'MySQL' FROM ten;
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set optimizer_switch=`mrr=on,mrr_cost_based=off`;
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#set optimizer_switch='mrr=off';
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let query=
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SELECT STRAIGHT_JOIN *
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FROM
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(t1 LEFT JOIN
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(t2 LEFT JOIN
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(t3 LEFT OUTER JOIN t4 ON t3.c1 <= t4.c1_key)
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ON t2.c1 = t4.c3)
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ON t1.c1 = t4.c2)
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RIGHT OUTER JOIN t5 ON t2.c2 <= t5.c1
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WHERE t1.i1 = 1;
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eval EXPLAIN $query;
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eval $query;
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DROP TABLE ten, hundred, thousand;
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DROP TABLE t1, t2, t3, t4, t5;
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