Padma Penumarthy created DRILL-6123:
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Summary: Limit batch size for Merge Join based on memory
Key: DRILL-6123
URL: https://issues.apache.org/jira/browse/DRILL-6123
Project: Apache Drill
Issue Type: Improvement
Components: Execution - Flow
Affects Versions: 1.12.0
Reporter: Padma Penumarthy
Assignee: Padma Penumarthy
Fix For: 1.13.0
Merge join limits output batch size to 32K rows irrespective of row size. This
can create very large or very small batches (in terms of memory), depending
upon average row width. Change this to figure out output row count based on
memory specified with the new outputBatchSize option and average row width of
incoming left and right batches. Output row count will be minimum of 1 and max
of 64k.
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