Re: [DISCUSSION]Improve Simple updates and delete performance in carbondata

Posted by David CaiQiang on Dec 09, 2020; 7:44am
URL: http://apache-carbondata-dev-mailing-list-archive.168.s1.nabble.com/DISCUSSION-Improve-Simple-updates-and-delete-performance-in-carbondata-tp103294p104577.html

Hi akash,

  for simple updates and delete scenario,  you can try to do it.

  During update/delete,
  1) for updated/deleted segment, no need to update segmentMetadataInfo.
  2) for new inserted segment, you can summary blocklet level index to
segment level index, reading carbonindex/carbonindexmerge file and calculate
it.



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Best Regards
David Cai
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