Re: [I] [Bug] CAST(complex AS STRING) does not honour spark.sql.legacy.castComplexTypesToString.enabled [datafusion-comet]

["comphead (via GitHub)" <gi...@apache.org>]

comphead commented on issue #4492:
URL: https://github.com/apache/datafusion-comet/issues/4492#issuecomment-4675497920

   The flag is internal in Spark 4, so I propose to treat it as false(default)
   
   ```
     val LEGACY_COMPLEX_TYPES_TO_STRING =
       buildConf("spark.sql.legacy.castComplexTypesToString.enabled")
         .internal()
         .doc("When true, maps and structs are wrapped by [] in casting to strings, and " +
           "NULL elements of structs/maps/arrays will be omitted while converting to strings. " +
           "Otherwise, if this is false, which is the default, maps and structs are wrapped by {}, " +
           "and NULL elements will be converted to \"null\".")
         .version("3.1.0")
         .booleanConf
         .createWithDefault(false)
   ```
   
   And fallback to Spark if this flag is true


-- 
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.

To unsubscribe, e-mail: github-unsubscribe@datafusion.apache.org

For queries about this service, please contact Infrastructure at:
users@infra.apache.org


---------------------------------------------------------------------
To unsubscribe, e-mail: github-unsubscribe@datafusion.apache.org
For additional commands, e-mail: github-help@datafusion.apache.org