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Posted to commits@druid.apache.org by GitBox <gi...@apache.org> on 2020/06/30 19:27:31 UTC
[GitHub] [druid] gianm opened a new pull request #10104: Join filter pre-analysis simplifications and sanity checks.
gianm opened a new pull request #10104:
URL: https://github.com/apache/druid/pull/10104
- At pre-analysis time, only compute pre-analysis for the innermost
root query, since this is the one that will run on the join that involves
the base datasource. Previously, pre-analyses were computed for multiple
levels of the query, some of which were unnecessary.
- Remove JoinFilterPreAnalysisGroup and join query level gathering code,
since they existed to support precomputation of multiple pre-analyses.
- Embed JoinFilterPreAnalysisKey into JoinFilterPreAnalysis and use it to
sanity check at processing time that the correct pre-analysis was done.
Tangentially related changes:
- Remove prioritizeAndLaneQuery functionality from LocalQuerySegmentWalker.
The computed priority and lanes were not being used.
- Add "getBaseQuery" method to DataSourceAnalysis to support identification
of the proper subquery for filter pre-analysis.
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[GitHub] [druid] jon-wei merged pull request #10104: Join filter pre-analysis simplifications and sanity checks.
Posted by GitBox <gi...@apache.org>.
jon-wei merged pull request #10104:
URL: https://github.com/apache/druid/pull/10104
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