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[fix](function) support return JsonType for If function (#35199)

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add a FunctionSignature for If to support return Type is JsonType.
This commit is contained in:
Xujian Duan
2024-05-23 14:07:50 +08:00
committed by yiguolei
parent 9427942245
commit dd567fa774
3 changed files with 107 additions and 1 deletions
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5
fe/fe-core/src/main/java/org/apache/doris/nereids/trees/expressions/functions/scalar/If.java
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@ -36,6 +36,7 @@ import org.apache.doris.nereids.types.DoubleType;
import org.apache.doris.nereids.types.FloatType;
import org.apache.doris.nereids.types.HllType;
import org.apache.doris.nereids.types.IntegerType;
import org.apache.doris.nereids.types.JsonType;
import org.apache.doris.nereids.types.LargeIntType;
import org.apache.doris.nereids.types.MapType;
import org.apache.doris.nereids.types.NullType;
@ -101,7 +102,9 @@ public class If extends ScalarFunction
FunctionSignature.ret(VarcharType.SYSTEM_DEFAULT)
.args(BooleanType.INSTANCE, VarcharType.SYSTEM_DEFAULT, VarcharType.SYSTEM_DEFAULT),
FunctionSignature.ret(StringType.INSTANCE)
.args(BooleanType.INSTANCE, StringType.INSTANCE, StringType.INSTANCE)
.args(BooleanType.INSTANCE, StringType.INSTANCE, StringType.INSTANCE),
FunctionSignature.ret(JsonType.INSTANCE)
.args(BooleanType.INSTANCE, JsonType.INSTANCE, JsonType.INSTANCE)
);
/**

29
regression-test/data/query_p0/sql_functions/conditional_functions/test_if_json.out Normal file
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@ -0,0 +1,29 @@
-- This file is automatically generated. You should know what you did if you want to edit this
-- !if_json_parse --
1 {"k":"k1","v":"v1"} {"k":"k1","v":"v1"}
2 {"k":"k2","v":"v3"} {"k":"k2","v":"v3"}
3 \N \N
4 {"k":"k4","v":"v4"} {"k":"k4","v":"v4"}
5 \N {"k":"k5","v":"v5"}
-- !case_json_parse --
1 {"k":"k1","v":"v1"} {"k":"k1","v":"v1"}
2 {"k":"k2","v":"v3"} {"k":"k2","v":"v3"}
3 \N \N
4 {"k":"k4","v":"v4"} {"k":"k4","v":"v4"}
5 \N {"k":"k5","v":"v5"}
-- !case_json_parse_error_to_null --
1 {"k":"k1","v":"v1"} {"k":"k1","v":"v1"}
2 {"k":"k2","v":"v3"} {"k":"k2","v":"v3"}
3 \N \N
4 {"k":"k4","v":"v4"} {"k":"k4","v":"v4"}
5 \N {"k":"k5","v":"v5"}
-- !case_json_parse_error_to_value --
1 {"k":"k1","v":"v1"} {"k":"k1","v":"v1"}
2 {"k":"k2","v":"v3"} {"k":"k2","v":"v3"}
3 \N \N
4 {"k":"k4","v":"v4"} {"k":"k4","v":"v4"}
5 \N {"k":"k5","v":"v5"}

74
regression-test/suites/query_p0/sql_functions/conditional_functions/test_if_json.groovy Normal file
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@ -0,0 +1,74 @@
// 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.
suite("test_if_json") {
def tblName = "test_if_json"
sql """DROP TABLE IF EXISTS ${tblName};"""
sql """
CREATE TABLE ${tblName} (
`id` INT NULL,
`v_key` CHAR NULL,
`v_json` JSON NULL
) ENGINE=OLAP
DUPLICATE KEY(`id`, `v_key`)
COMMENT 'OLAP'
DISTRIBUTED BY HASH(`id`) BUCKETS 10
PROPERTIES (
"replication_num" = "1"
)
"""
sql """ insert into ${tblName} values (1, 'a', '{"k":"k1","v":"v1"}')"""
sql """ insert into ${tblName} values (2, 'a', '{"k":"k2","v":"v3"}')"""
sql """ insert into ${tblName} values (3, 'b', '{"k":"k3","v":"v3"}')"""
sql """ insert into ${tblName} values (4, 'a', '{"k":"k4","v":"v4"}')"""
sql """ insert into ${tblName} values (5, 'c', '{"k":"k5","v":"v5"}')"""
qt_if_json_parse """
SELECT id,
if(v_key = 'a', JSON_PARSE(v_json), NULL) AS a,
if(v_key = 'b', NULL, JSON_PARSE(v_json)) AS b
FROM ${tblName}
ORDER BY id
"""
qt_case_json_parse """
SELECT id,
CASE v_key WHEN 'a' THEN JSON_PARSE(v_json) ELSE NULL END AS a,
CASE v_key WHEN 'b' THEN NULL ELSE JSON_PARSE(v_json) END AS b
FROM ${tblName}
ORDER BY id
"""
qt_case_json_parse_error_to_null """
SELECT id,
CASE v_key WHEN 'a' THEN json_parse_error_to_null(v_json) ELSE NULL END AS a,
CASE v_key WHEN 'b' THEN NULL ELSE json_parse_error_to_null(v_json) END AS b
FROM ${tblName}
ORDER BY id
"""
qt_case_json_parse_error_to_value """
SELECT id,
CASE v_key WHEN 'a' THEN json_parse_error_to_value(v_json,json_object()) ELSE NULL END AS a,
CASE v_key WHEN 'b' THEN NULL ELSE json_parse_error_to_value(v_json,json_object()) END AS b
FROM ${tblName}
ORDER BY id
"""
sql """DROP TABLE IF EXISTS ${tblName};"""
}