[GitHub] [hudi] 7c00 commented on pull request #4563: [HUDI-3211][RFC-44] Add RFC for Hudi Connector for Presto

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7c00 commented on pull request #4563:
URL: https://github.com/apache/hudi/pull/4563#issuecomment-1014264458


   @agrawaldevesh 
   
   For the first question, users will need to change their queries to use the hudi connector at first. For example, change `select * from hive.schema.hudi_table` to `select * from hudi.shema.hudi_table`. While, we also [proposed](https://github.com/prestodb/presto/issues/17006) the catalog remapping service, which would automatically change the catalog name without user effort. This might work as a new plugin in Presto. 
   
   The features like predicate pushdown are going to be also supported in hudi connector. Presto codebase makes a good abstraction on manipulation to parquet (, orc and other formats). We will reuse the good parts of existing code.
   
   The performance of the hudi connector will be on par with hudi connector. In the early versions, hudi connector will have almost the same read path as hive connector. But we are going to add some specified optimization to get better performance for hudi queries.
   
   Exactly, the new connector opens up the possibility to write into Hudi tables via Presto.  Further designs will be added in future.
   
   


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