Airblader commented on a change in pull request #16691:
URL: https://github.com/apache/flink/pull/16691#discussion_r686719757
##########
File path: docs/data/sql_functions.yml
##########
@@ -571,6 +571,22 @@ collection:
table: MAP.at(ANY)
description: Returns the value specified by key value in map.
+json:
+ - sql: JSON_EXISTS(jsonValue, path [ { TRUE | FALSE | UNKNOWN | ERROR } ON
ERROR ])
+ table: STRING.jsonExists(STRING path [, JsonExistsOnError onError])
+ description: |
+ Determines whether a JSON string satisfies a given path search criterion.
+
+ This follows the ISO/IEC TR 19075-6 specification for JSON support in
SQL.
+
+ ```
+ SELECT JSON_EXISTS(
Review comment:
I've added more examples which hopefully are more clear.
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