[regressiontest]add json function test case (#9917)

regression-test/data/query/sql_functions/json_functions/test_json_function.out

@@ -0,0 +1,64 @@
+-- This file is automatically generated. You should know what you did if you want to edit this
+-- !sql --
+1.3
+
+-- !sql --
+2.2
+
+-- !sql --
+1.1
+
+-- !sql --
+1
+
+-- !sql --
+2
+
+-- !sql --
+1
+
+-- !sql --
+v1
+
+-- !sql --
+e2
+
+-- !sql --
+v1
+
+-- !sql --
+[]
+
+-- !sql --
+[null]
+
+-- !sql --
+[1,"abc",null,true,"10:00:00"]
+
+-- !sql --
+["a",null,"c"]
+
+-- !sql --
+{}
+
+-- !sql --
+{"time":"10:00:00"}
+
+-- !sql --
+{"id":87,"name":"carrot"}
+
+-- !sql --
+["a",null,"c"]
+
+-- !sql --
+"null"	"\\"null\\""
+
+-- !sql --
+"[1, 2, 3]"
+
+-- !sql --
+\N
+
+-- !sql --
+"\\n\\b\\r\\t"
+

regression-test/suites/query/sql_functions/json_functions/test_json_function.groovy

@@ -0,0 +1,48 @@
+// 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_json_function", "query") {
+    sql "set enable_vectorized_engine = true;"
+    sql "set batch_size = 4096;"
+
+    qt_sql "SELECT get_json_double('{\"k1\":1.3, \"k2\":\"2\"}', \"\$.k1\");"
+    qt_sql "SELECT get_json_double('{\"k1\":\"v1\", \"my.key\":[1.1, 2.2, 3.3]}', '\$.\"my.key\"[1]');"
+    qt_sql "SELECT get_json_double('{\"k1.key\":{\"k2\":[1.1, 2.2]}}', '\$.\"k1.key\".k2[0]');"
+
+    qt_sql "SELECT get_json_int('{\"k1\":1, \"k2\":\"2\"}', \"\$.k1\");"
+    qt_sql "SELECT get_json_int('{\"k1\":\"v1\", \"my.key\":[1, 2, 3]}', '\$.\"my.key\"[1]');"
+    qt_sql "SELECT get_json_int('{\"k1.key\":{\"k2\":[1, 2]}}', '\$.\"k1.key\".k2[0]');"
+
+    qt_sql "SELECT get_json_string('{\"k1\":\"v1\", \"k2\":\"v2\"}', \"\$.k1\");"
+    qt_sql "SELECT get_json_string('{\"k1\":\"v1\", \"my.key\":[\"e1\", \"e2\", \"e3\"]}', '\$.\"my.key\"[1]');"
+    qt_sql "SELECT get_json_string('{\"k1.key\":{\"k2\":[\"v1\", \"v2\"]}}', '\$.\"k1.key\".k2[0]');"
+
+    qt_sql "SELECT json_array();"
+    qt_sql "SELECT json_array(null);"
+    qt_sql "SELECT json_array(1, \"abc\", NULL, TRUE, '10:00:00');"
+    qt_sql "SELECT json_array(\"a\", null, \"c\");"
+
+    qt_sql "SELECT json_object();"
+    qt_sql "SELECT json_object('time','10:00:00');"
+    qt_sql "SELECT json_object('id', 87, 'name', 'carrot');"
+    qt_sql "SELECT json_array(\"a\", null, \"c\");"
+
+    qt_sql "SELECT json_quote('null'), json_quote('\"null\"');"
+    qt_sql "SELECT json_quote('[1, 2, 3]');"
+    qt_sql "SELECT json_quote(null);"
+    qt_sql "SELECT json_quote(\"\\n\\b\\r\\t\");"
+
+}