[GitHub] [spark] MaxGekk commented on issue #27836: [SPARK-31009][SQL] Support json_object_keys function

[GitBox <gi...@apache.org>]

MaxGekk commented on issue #27836: [SPARK-31009][SQL] Support json_object_keys function
URL: https://github.com/apache/spark/pull/27836#issuecomment-595860127
 
 
   We can get the same result using existing functions:
   ```scala
   scala> val df = Seq("""{"a":1, "b":2}""").toDF("json")
   df: org.apache.spark.sql.DataFrame = [json: string]
   
   scala> df.select(map_keys(from_json($"json", MapType(StringType, StringType)))).show
   +-----------------+
   |map_keys(entries)|
   +-----------------+
   |           [a, b]|
   +-----------------+
   ```
   What's the benefit of having the function in public API?

----------------------------------------------------------------
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
 
For queries about this service, please contact Infrastructure at:
users@infra.apache.org


With regards,
Apache Git Services

---------------------------------------------------------------------
To unsubscribe, e-mail: reviews-unsubscribe@spark.apache.org
For additional commands, e-mail: reviews-help@spark.apache.org