array_union.sql

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-- Config: spark.comet.expression.ArrayUnion.allowIncompatible=true

statement
CREATE TABLE test_array_union(a array<int>, b array<int>) USING parquet

statement
INSERT INTO test_array_union VALUES (array(1, 2, 3), array(3, 4, 5)), (array(1, 2), array()), (array(), array(1)), (NULL, array(1)), (array(1, NULL), array(NULL, 2))

query ignore(https://github.com/apache/datafusion-comet/issues/3644)
SELECT array_union(a, b) FROM test_array_union

-- column + literal
query ignore(https://github.com/apache/datafusion-comet/issues/3644)
SELECT array_union(a, array(3, 4, 5)) FROM test_array_union

-- literal + column
query
SELECT array_union(array(1, 2, 3), b) FROM test_array_union

-- literal + literal
query
SELECT array_union(array(1, 2, 3), array(3, 4, 5)), array_union(array(1, 2), array()), array_union(array(), array(1)), array_union(cast(NULL as array<int>), array(1))