beliefer opened a new pull request #35494:
URL: https://github.com/apache/spark/pull/35494


   ### What changes were proposed in this pull request?
   https://github.com/apache/spark/pull/35248 provides a new framework to 
represent catalyst expressions in DS V2 APIs.
   Because the framework translate all catalyst expressions to a unified SQL 
string and cannot keep compatibility between different JDBC database, the 
framework works not good.
   
   This PR reactor the framework so as JDBC dialect could compile expression by 
self way.
   First, The framework translate catalyst expressions to DS V2 expression.
   Second, The JDBC dialect could compile DS V2 expression to different SQL 
syntax.
   
   
   ### Why are the changes needed?
   Make  the framework be more common use.
   
   
   ### Does this PR introduce _any_ user-facing change?
   'No'.
   The feature is not released.
   
   
   ### How was this patch tested?
   Exists tests.
   


-- 
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: reviews-unsubscr...@spark.apache.org

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



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

Reply via email to