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30 lines
802 B
SQL
30 lines
802 B
SQL
-- Tags: no-fasttest, no-parallel, long
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-- Tag no-fasttest: Test runtime is > 6 sec
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-- Tag long: Test runtime is > 6 sec
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-- Tag no-parallel: Messes with internal cache
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SYSTEM DROP QUERY CACHE;
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-- Cache query result into query cache with a TTL of 3 sec
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SELECT 1 SETTINGS use_query_cache = true, query_cache_ttl = 3;
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-- Expect one non-stale cache entry
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SELECT COUNT(*) FROM system.query_cache;
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SELECT stale FROM system.query_cache;
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-- Wait until entry is expired
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SELECT sleep(3);
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SELECT sleep(3);
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SELECT stale FROM system.query_cache;
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SELECT '---';
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-- Run same query as before
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SELECT 1 SETTINGS use_query_cache = true, query_cache_ttl = 3;
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-- The entry should have been refreshed (non-stale)
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SELECT COUNT(*) FROM system.query_cache;
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SELECT stale FROM system.query_cache;
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SYSTEM DROP QUERY CACHE;
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