[GitHub] [incubator-pinot] fx19880617 edited a comment on issue #6298: Support Describe Pinot table and schema

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fx19880617 edited a comment on issue #6298:
URL: https://github.com/apache/incubator-pinot/issues/6298#issuecomment-751450902


   > @fx19880617 I can give it a try, but since I'm fairly new to pinot, would you be able to point me to the entry point for query processing or any help to get started with this issue would be helpful.
   
   Thanks!
   
   The entrypoint of query processing starts from the parser: https://github.com/apache/incubator-pinot/blob/master/pinot-common/src/main/java/org/apache/pinot/sql/parsers/CalciteSqlParser.java
   
   You can parse the query and set corresponding objects to PinotQuery(https://github.com/apache/incubator-pinot/blob/master/pinot-common/src/main/java/org/apache/pinot/common/request/PinotQuery.java). You may need to add new fields if existing ones are not sufficient.
   
   Then RequestHandler should be able to return the results directly based on the table information.
   
   


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