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Fix cast lowcard of nullable in JoinSwitcher

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vdimir 2022-05-23 13:05:59 +00:00
parent 7d88b81622
commit dabb150a95
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3 changed files with 8 additions and 1 deletions
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2
src/Interpreters/JoinSwitcher.cpp
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@ -66,7 +66,7 @@ void JoinSwitcher::switchJoin()
for (const auto & sample_column : right_sample_block)
{
positions.emplace_back(tmp_block.getPositionByName(sample_column.name));
is_nullable.emplace_back(sample_column.type->isNullable());
is_nullable.emplace_back(JoinCommon::isNullable(sample_column.type));
}
}

1
tests/queries/0_stateless/02302_join_auto_lc_nullable_bug.reference Normal file
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@ -0,0 +1 @@
1

6
tests/queries/0_stateless/02302_join_auto_lc_nullable_bug.sql Normal file
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@ -0,0 +1,6 @@
SET max_bytes_in_join = '100', join_algorithm = 'auto';
SELECT 3 == count() FROM (SELECT toLowCardinality(toNullable(number)) AS l FROM system.numbers LIMIT 3) AS s1
ANY LEFT JOIN (SELECT toLowCardinality(toNullable(number)) AS r FROM system.numbers LIMIT 4) AS s2 ON l = r
;