Airblader commented on a change in pull request #17275:
URL: https://github.com/apache/flink/pull/17275#discussion_r710782916
##########
File path: docs/data/sql_functions.yml
##########
@@ -652,19 +652,23 @@ json:
behavior for `ON EMPTY`, and raises an error for `ON ERROR`.
```
- // STRING: "true"
+ -- "true"
JSON_VALUE('{"a": true}', '$.a')
- // BOOLEAN: true
+ -- TRUE
JSON_VALUE('{"a": true}', '$.a' RETURNING BOOLEAN)
- // STRING: "false"
+ -- "false"
JSON_VALUE('{"a": true}', 'lax $.b'
DEFAULT FALSE ON EMPTY)
- // STRING: "false"
+ -- "false"
JSON_VALUE('{"a": true}', 'strict $.b'
DEFAULT FALSE ON ERROR)
+
+ -- 0.998D
+ JSON_VALUE('{"a.b": [0.998,0.996]}','$.[''a.b''][0]'
Review comment:
I was actually just thinking: doesn't using double quotes work, too, and
would be easier than having to escape the single quotes?
```
JSON_VALUE('{"a.b": [0.998,0.996]}','$.["a.b"][0]'
```
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