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Posted to commits@pinot.apache.org by GitBox <gi...@apache.org> on 2021/12/03 16:38:43 UTC

[GitHub] [pinot] mapshen commented on issue #7849: Inconsistent Row Counts from Upsert Tables

mapshen commented on issue #7849:
URL: https://github.com/apache/pinot/issues/7849#issuecomment-985663760


   @yupeng9 As discussed in Slack, after patching #7844 and #7860,  the off-by-one rate has dropped from 50% to 2% during a test with 3000 repeated queries of `select count(1) from <table>` before and after. However, the bad news is that it’s not down to zero yet. Any idea on what else we should look at?
   
   Regarding case 3, Trino perhaps needs to perform deduplication when querying multiple `validDocsIndex`.


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