structs_to_json.sql

-- Licensed to the Apache Software Foundation (ASF) under one
-- or more contributor license agreements.  See the NOTICE file
-- distributed with this work for additional information
-- regarding copyright ownership.  The ASF licenses this file
-- to you under the Apache License, Version 2.0 (the
-- "License"); you may not use this file except in compliance
-- with the License.  You may obtain a copy of the License at
--
--   http://www.apache.org/licenses/LICENSE-2.0
--
-- Unless required by applicable law or agreed to in writing,
-- software distributed under the License is distributed on an
-- "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
-- KIND, either express or implied.  See the License for the
-- specific language governing permissions and limitations
-- under the License.

statement
CREATE TABLE test_to_json(a int, b string, f float, d double) USING parquet

statement
INSERT INTO test_to_json VALUES (1, 'hello', cast('NaN' as float), cast('Infinity' as double)), (NULL, NULL, NULL, NULL), (0, '', 0.0, 0.0)

query spark_answer_only
SELECT to_json(named_struct('a', a, 'b', b, 'f', f, 'd', d)) FROM test_to_json

-- literal arguments
query spark_answer_only
SELECT to_json(named_struct('a', 1, 'b', 'hello'))

-- query expect_fallback(StructsToJson with options is not supported)
query ignore("Need support Spark 4.0.0")
SELECT to_json(named_struct('a', a, 'b', b), map('timestampFormat', 'dd/MM/yyyy'))

-- query expect_fallback(Struct type: StructType(StructField(a,ArrayType(IntegerType,false),false)) contains unsupported types)
query ignore("Need support Spark 4.0.0")
SELECT to_json(named_struct(a, array(b)))