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* Update the testcase for MDEV-10330Sergei Petrunia2016-11-211-1/+4
| | | | | Instead of restart_mysqld.inc, truncate the P_S tables that are used by the test. We don't want to query some irrelevant data.
* MDEV-10330: main.show_explain_ps fails sporadically in buildbotSergei Petrunia2016-11-181-3/+9
| | | | | | | | | | | The reason is that selecting from events_waits_history_long creates a race condition: it can happen that SHOW EXPLAIN thread was kicked off CPU exactly after posting a SHOW EXPLAIN request and then it wont need to wait. It doesn't seem to make sense to add more waits to stabilize the testcase. Let's instead make a check that SHOW EXPLAIN statement has a "stage/sql/show explain" stage.
* Fix the tests: show_explain_ps cannot work on embedded server.Sergey Petrunya2012-07-181-0/+2
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* t/show_explain_ps.test needs debug system to work.Sergey Petrunya2012-07-111-0/+1
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* Enable PERFORMANCE_SCHEMA tracking for SHOW EXPLAIN's conditions.Sergey Petrunya2012-07-071-0/+48