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Subject [GitHub] [drill] dvjyothsna commented on issue #1666: DRILL-7058: Refresh command to support subset of columns
Date Thu, 07 Mar 2019 19:16:59 GMT
dvjyothsna commented on issue #1666: DRILL-7058: Refresh command to support subset of columns
URL: https://github.com/apache/drill/pull/1666#issuecomment-470657399
 
 
   @amansinha100 I agree with you. In case if we are to change the structure of the metadata
cache file or even change the format in the next version of Drill, the tests need to be rewritten.
Yes, metrics of that sort can be added. The proposal is to store a flag allColumnMetadata(to
represent column metadata is stored for all the columns) and the subset of columns in the
summary file and use it during auto-refresh to store metadata for only the subset of columns.
This flag and list can be used to verify the refresh with a subset of columns functionality.
But again this will be done in a different Jira in the future. 

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