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b4b7d941fe
If the optimizer switch 'semijoin_with_cache' is set to 'off' then join cache cannot be used to join inner tables of a semijoin. Also fixed a bug in the function check_join_cache_usage() that led to wrong output of the EXPLAIN commands for some test cases.
9 lines
306 B
Plaintext
9 lines
306 B
Plaintext
set @subselect_extra_no_sj_tmp=@@optimizer_switch;
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set @optimizer_switch_for_subselect_extra_test='semijoin=off,firstmatch=off,loosescan=off,semijoin_with_cache=off';
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--source t/subselect_extra.test
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set optimizer_switch= @subselect_extra_no_sj_tmp;
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set @optimizer_switch_for_subselect_extra_test=null; |