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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