snuyanzin commented on code in PR #28688:
URL: https://github.com/apache/flink/pull/28688#discussion_r3605965769
##########
docs/data/sql_functions_zh.yml:
##########
@@ -1777,8 +1772,60 @@ bitmapagg:
`bitmap BITMAP`
返回一个 `BIGINT`。
+ - sql: JSON_LENGTH(json_doc[, path])
+ table: jsonLength(jsonObject[, path])
+ description: |
+ Returns the number of elements in a JSON document, or the length of the
value at the specified path if one is provided.
+ Returns NULL if the argument is NULL, the json is invalid, or the path
does not locate a value.
+ eg.
+ -- 2
+ JSON_LENGTH('{1: "hello", 2: "bye bye"}')
Review Comment:
invalid json
##########
docs/data/sql_functions_zh.yml:
##########
@@ -1777,8 +1772,60 @@ bitmapagg:
`bitmap BITMAP`
返回一个 `BIGINT`。
+ - sql: JSON_LENGTH(json_doc[, path])
+ table: jsonLength(jsonObject[, path])
+ description: |
+ Returns the number of elements in a JSON document, or the length of the
value at the specified path if one is provided.
+ Returns NULL if the argument is NULL, the json is invalid, or the path
does not locate a value.
+ eg.
+ -- 2
+ JSON_LENGTH('{1: "hello", 2: "bye bye"}')
+
+ -- 5
+ JSON_LENGTH('[1,2,3,4,5]')
+
+ -- 1
+ JSON_LENGTH('hello')
+
+ -- 1
+ JSON_LENGTH('{1: "hello", 2: "bye bye"}', '$.2')
Review Comment:
invalid json
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