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Added a test for what was always working

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Alexey Milovidov 2020-11-25 00:00:55 +03:00
parent 828d27d801
commit 99073c26ee
2 changed files with 5 additions and 0 deletions
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tests/queries/0_stateless/01586_columns_pruning.reference Normal file
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tests/queries/0_stateless/01586_columns_pruning.sql Normal file
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-- Unneeded column is removed from subquery.
SELECT count() FROM (SELECT number, groupArray(repeat(toString(number), 1000000)) FROM numbers(1000000) GROUP BY number);
-- Unneeded column cannot be removed from subquery and the query is out of memory
SELECT count() FROM (SELECT number, groupArray(repeat(toString(number), 1000000)) AS agg FROM numbers(1000000) GROUP BY number HAVING notEmpty(agg)); -- { serverError 241 }