[GitHub] [incubator-pinot] npawar commented on pull request #5378: The last of the getTimeFieldSpec calls

[GitBox <gi...@apache.org>]

npawar commented on pull request #5378:
URL: https://github.com/apache/incubator-pinot/pull/5378#issuecomment-629497281


   > Not related to this PR, but inside the Schema can we do the TimeFieldSpec to DateTimeFieldSpec conversion on the setter side instead of the getter side?
   > The problem of conversion on the getter side is that the schema still stores the deprecated TimeFieldSpec, and `getFieldSpecMap()` and `getFieldSpecFor()` will still return the TimeFieldSpec instead of DateTimeFieldSpec. This can easily cause bugs inside the code.
   
   That was exactly the initial plan - to modify the setter to save it as a DateTimeFieldspec. But now we changed the plan. We are not going to do any changes to ser/deser. Reason mainly being external integrations (presto, superset etc) which still need TimeFieldSpec, and also upgrades. I've updated the design doc: https://docs.google.com/document/d/1SU1jCjfsIDSA960fD5YWQbD72p8UdGF0c7CroFNt9Ho/edit#heading=h.6gaudq1t6ys8 (Step C and also put the previous approach in Discarded section)
   
   New plan is to make sure Pinot can treat TIME or DATE_TIME either of them as the primary time column.
   


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