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49 lines
3.8 KiB
SQL
49 lines
3.8 KiB
SQL
-- If the untuple() function has an alias, and if the tuple element has an explicit name, we want to use it to
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-- generate the resulting column name.
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-- Check all combinations of tuple element alias and untuple() alias. Also to avoid that we generate the same
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-- result column names and confuse query analysis (see #26179), test also two untuple() calls in one SElECT
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-- with the same types and aliases.
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SELECT '-- tuple element alias';
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SELECT untuple(tuple(1)::Tuple(a Int)), untuple(tuple('s')::Tuple(a String)) FORMAT Vertical SETTINGS allow_experimental_analyzer = 0;
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SELECT untuple(tuple(1)::Tuple(a Int)), untuple(tuple('s')::Tuple(a String)) FORMAT Vertical SETTINGS allow_experimental_analyzer = 1;
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SELECT untuple(tuple(1)::Tuple(a Int)), untuple(tuple(1)::Tuple(a Int)) FORMAT Vertical SETTINGS allow_experimental_analyzer = 0; -- { serverError DUPLICATE_COLUMN }
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SELECT untuple(tuple(1)::Tuple(a Int)), untuple(tuple(1)::Tuple(a Int)) FORMAT Vertical SETTINGS allow_experimental_analyzer = 1; -- Bug: doesn't throw an exception
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SELECT '-- tuple element alias + untuple() alias';
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SELECT untuple(tuple(1)::Tuple(a Int)) x, untuple(tuple('s')::Tuple(a String)) y FORMAT Vertical SETTINGS allow_experimental_analyzer = 0;
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SELECT untuple(tuple(1)::Tuple(a Int)) x, untuple(tuple('s')::Tuple(a String)) y FORMAT Vertical SETTINGS allow_experimental_analyzer = 1;
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SELECT untuple(tuple(1)::Tuple(a Int)) x, untuple(tuple(1)::Tuple(a Int)) x FORMAT Vertical SETTINGS allow_experimental_analyzer = 0; -- { serverError DUPLICATE_COLUMN }
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SELECT untuple(tuple(1)::Tuple(a Int)) x, untuple(tuple(1)::Tuple(a Int)) x FORMAT Vertical SETTINGS allow_experimental_analyzer = 1; -- Bug: doesn't throw an exception
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SELECT '-- untuple() alias';
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SELECT untuple(tuple(1)::Tuple(Int)) x, untuple(tuple('s')::Tuple(String)) y FORMAT Vertical SETTINGS allow_experimental_analyzer = 0;
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SELECT untuple(tuple(1)::Tuple(Int)) x, untuple(tuple('s')::Tuple(String)) y FORMAT Vertical SETTINGS allow_experimental_analyzer = 1;
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SELECT untuple(tuple(1)::Tuple(Int)) x, untuple(tuple(1)::Tuple(Int)) x FORMAT Vertical SETTINGS allow_experimental_analyzer = 0; -- { serverError DUPLICATE_COLUMN }
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SELECT untuple(tuple(1)::Tuple(Int)) x, untuple(tuple(1)::Tuple(Int)) x FORMAT Vertical SETTINGS allow_experimental_analyzer = 1; -- Bug: doesn't throw an exception
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SELECT '-- no aliases';
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SELECT untuple(tuple(1)::Tuple(Int)), untuple(tuple('s')::Tuple(String)) FORMAT Vertical SETTINGS allow_experimental_analyzer = 0;
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SELECT untuple(tuple(1)::Tuple(Int)), untuple(tuple('s')::Tuple(String)) FORMAT Vertical SETTINGS allow_experimental_analyzer = 1;
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SELECT untuple(tuple(1)::Tuple(Int)), untuple(tuple(1)::Tuple(Int)) FORMAT Vertical SETTINGS allow_experimental_analyzer = 0; -- { serverError DUPLICATE_COLUMN }
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SELECT untuple(tuple(1)::Tuple(Int)), untuple(tuple(1)::Tuple(Int)) FORMAT Vertical SETTINGS allow_experimental_analyzer = 1; -- Bug: doesn't throw an exception
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SELECT '-- tuple() loses the column names (would be good to fix, see #36773)';
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SELECT untuple(tuple(1 as a)) as t FORMAT Vertical SETTINGS allow_experimental_analyzer = 0, enable_named_columns_in_function_tuple = 0;
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SELECT untuple(tuple(1 as a)) as t FORMAT Vertical SETTINGS allow_experimental_analyzer = 1, enable_named_columns_in_function_tuple = 0;
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SELECT '-- tuple() with enable_named_columns_in_function_tuple = 1 and allow_experimental_analyzer = 1 keeps the column names';
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SELECT untuple(tuple(1 as a)) as t FORMAT Vertical SETTINGS allow_experimental_analyzer = 1, enable_named_columns_in_function_tuple = 1;
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SELECT '-- thankfully JSONExtract() keeps them';
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SELECT untuple(JSONExtract('{"key": "value"}', 'Tuple(key String)')) x FORMAT Vertical SETTINGS allow_experimental_analyzer = 0;
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SELECT untuple(JSONExtract('{"key": "value"}', 'Tuple(key String)')) x FORMAT Vertical SETTINGS allow_experimental_analyzer = 1;
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