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Merge pull request #70735 from ClickHouse/backport/24.8/68848

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Backport #68848 to 24.8: Fix empty tuple in array
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robot-ch-test-poll4 2024-10-16 15:15:21 +02:00 committed by GitHub
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3
src/Functions/array/arrayElement.cpp
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@ -1598,6 +1598,9 @@ ColumnPtr FunctionArrayElement::executeTuple(const ColumnsWithTypeAndName & argu
const auto & tuple_columns = col_nested->getColumns();
size_t tuple_size = tuple_columns.size();
if (tuple_size == 0)
return ColumnTuple::create(input_rows_count);
const DataTypes & tuple_types = typeid_cast<const DataTypeTuple &>(
*typeid_cast<const DataTypeArray &>(*arguments[0].type).getNestedType()).getElements();

1
tests/queries/0_stateless/03229_empty_tuple_in_array.reference Normal file
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@ -0,0 +1 @@
()

1
tests/queries/0_stateless/03229_empty_tuple_in_array.sql Normal file
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@ -0,0 +1 @@
select [()][0];