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opt: use paired joins for left semi inverted joins #55986

Merged
merged 1 commit into from
Oct 27, 2020
Merged

opt: use paired joins for left semi inverted joins #55986

merged 1 commit into from
Oct 27, 2020

Commits on Oct 27, 2020

  1. opt: use paired joins for left semi inverted joins 

    Semi joins using the inverted index used to be converted
to an inner inverted join followed by an inner lookup join
and a distinct for de-duplication. They are now converted
to paired-joins consisting of an inner inverted join
followed by a left semi lookup join, which is more
efficient.

Release note: None
    @sumeerbhola
    sumeerbhola committed Oct 27, 2020
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