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Merge pull request #25390 from ClickHouse/add-test-23163

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Add a test for #23163
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alexey-milovidov 2021-06-17 20:08:35 +03:00 committed by GitHub
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tests/queries/0_stateless/01915_merge_prewhere_virtual_column_rand_chao_wang.reference Normal file
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tests/queries/0_stateless/01915_merge_prewhere_virtual_column_rand_chao_wang.sql Normal file
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DROP TABLE IF EXISTS abc;
CREATE TABLE abc
(
`f1` String,
`f2` String
)
ENGINE = MergeTree()
ORDER BY f1;
-- In version 20.12 this query sometimes produces an exception "Cannot find column"
SELECT f2 FROM merge(currentDatabase(), '^abc$') PREWHERE _table = 'abc' AND f1 = 'a' AND rand() % 100 < 20;
SELECT f2 FROM merge(currentDatabase(), '^abc$') PREWHERE _table = 'abc' AND f1 = 'a';
DROP TABLE abc;