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MDEV-9487: Server crashes in Time_and_counter_tracker::incr_loops with UNION in ALL subquery
Do not mark subquery as inexpensive when it is not optimized.
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@ -7147,6 +7147,18 @@ sq
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NULL
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drop view v2;
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drop table t1,t2;
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#
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# MDEV-9487: Server crashes in Time_and_counter_tracker::incr_loops
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# with UNION in ALL subquery
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#
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SET NAMES utf8;
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CREATE TABLE t1 (f VARCHAR(8)) ENGINE=MyISAM;
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INSERT INTO t1 VALUES ('foo');
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SELECT f FROM t1 WHERE f > ALL ( SELECT 'bar' UNION SELECT 'baz' );
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f
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foo
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drop table t1;
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SET NAMES default;
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set optimizer_switch=default;
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select @@optimizer_switch like '%exists_to_in=off%';
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@@optimizer_switch like '%exists_to_in=off%'
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