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Added test.

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Nikolai Kochetov 2020-07-03 11:22:21 +03:00
parent 5e8d5bc8c0
commit 8cfe5f137a
2 changed files with 9 additions and 0 deletions
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tests/queries/0_stateless/01358_union_threads_bug.reference Normal file
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tests/queries/0_stateless/01358_union_threads_bug.sql Normal file
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set log_queries = 1;
set max_threads = 16;
SELECT count() FROM (SELECT number FROM numbers_mt(1000000) ORDER BY number DESC LIMIT 100 UNION ALL SELECT number FROM numbers_mt(1000000) ORDER BY number DESC LIMIT 100 UNION ALL SELECT number FROM numbers_mt(1000000) ORDER BY number DESC LIMIT 100);
system flush logs;
select length(thread_ids) >= 16 from system.query_log where event_date >= today() - 1 and query like '%SELECT count() FROM (SELECT number FROM numbers_mt(1000000) ORDER BY number DESC LIMIT 100 UNION ALL SELECT number FROM numbers_mt(1000000) ORDER BY number DESC LIMIT 100 UNION ALL SELECT number FROM numbers_mt(1000000) ORDER BY number DESC LIMIT 100)%' and type = 'QueryFinish' order by query_start_time desc limit 1;