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Tanuj Khurana resolved PHOENIX-6752. ------------------------------------ Fix Version/s: 5.1.3 Resolution: Resolved > Duplicate expression nodes in extract nodes during WHERE compilation phase > leads to poor performance. > ----------------------------------------------------------------------------------------------------- > > Key: PHOENIX-6752 > URL: https://issues.apache.org/jira/browse/PHOENIX-6752 > Project: Phoenix > Issue Type: Bug > Affects Versions: 4.15.0, 5.1.0, 4.16.1, 5.2.0 > Reporter: Jacob Isaac > Assignee: Jacob Isaac > Priority: Critical > Fix For: 5.2.0, 5.1.3 > > Attachments: test-case.txt > > > SQL queries using the OR operator were taking a long time during the WHERE > clause compilation phase when a large number of OR clauses (~50k) are used. > The key observation was that during the AND/OR processing, when there are a > large number of OR expression nodes the same set of extracted nodes was > getting added. > Thus bloating the set size and slowing down the processing. > [code|https://github.com/apache/phoenix/blob/0c2008ddf32566c525df26cb94d60be32acc10da/phoenix-core/src/main/java/org/apache/phoenix/compile/WhereOptimizer.java#L930] -- This message was sent by Atlassian Jira (v8.20.10#820010)