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Backport #71388 to 24.8: Fix error Invalid number of rows in Chunk with Variant column

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robot-clickhouse 2024-11-07 18:08:25 +00:00
parent 97f87d758a
commit 7981bfa9fa
3 changed files with 7 additions and 1 deletions
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2
src/Columns/ColumnVariant.cpp
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@ -919,7 +919,7 @@ ColumnPtr ColumnVariant::permute(const Permutation & perm, size_t limit) const
if (hasOnlyNulls())
{
if (limit)
return cloneResized(limit);
return cloneResized(limit ? std::min(size(), limit) : size());
/// If no limit, we can just return current immutable column.
return this->getPtr();

0
tests/queries/0_stateless/03261_variant_permutation_bug.reference Normal file
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6
tests/queries/0_stateless/03261_variant_permutation_bug.sql Normal file
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@ -0,0 +1,6 @@
set allow_experimental_variant_type=1;
create table test (x UInt64, d Variant(UInt64)) engine=Memory;
insert into test select number, null from numbers(200000);
select d from test order by d::String limit 32213 format Null;
drop table test;