zclllyybb commented on code in PR #780:
URL: https://github.com/apache/doris-website/pull/780#discussion_r1651002697
##########
docs/sql-manual/sql-functions/json-functions/json-keys.md:
##########
@@ -0,0 +1,84 @@
+---
+{
+ "title": "JSON_KEYS",
+ "language": "en"
+}
+---
+
+<!--
+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.
+-->
+
+## Json_keys
+### Description
+#### Syntax
+
+`ARRAY<STRING> json_keys(JSON, [VARCHAR path])`
+
+
+Returns the keys from the top-level value of a JSON object as a JSON array,
or, if a path argument is given, the top-level keys from the selected path.
Returns NULL if any argument is NULL, the json_doc argument is not an object,
or path, if given, does not locate an object. An error occurs if the json_doc
argument is not a valid JSON document or the path argument is not a valid path
expression
+
+> Note:
+>
+> The result array is empty if the selected object is empty. If the top-level
value has nested subobjects, the return value does not include keys from those
subobjects.
+### Example
+
+```
Review Comment:
```suggestion
```sql
```
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