Opened 7 years ago

Last modified 5 years ago

#3836 assigned enhancement

Parallel support for ST_CountAgg, ST_SummaryStatsAgg — at Initial Version

Reported by: pramsey Owned by: pramsey
Priority: medium Milestone: PostGIS Fund Me
Component: postgis Version: master
Keywords: Cc:

Description

Continuing from #3751.

  • ST_CountAgg
  • ST_SummaryStatsAgg

These two aggregates are candidates for parallel aggregation. They are already marked parallel safe in their current incarnation.

They require a combinefunc, and serialize/deserialize functions. Unfortunately each has several different SQL function parameterizations, so it'll be a little complex to carry out.

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