Uros Stankovic created SPARK-59710:
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Summary: Join pushdown of JDBC data source does not handle
partitioning well
Key: SPARK-59710
URL: https://issues.apache.org/jira/browse/SPARK-59710
Project: Spark
Issue Type: Bug
Components: SQL
Affects Versions: 4.1.3
Reporter: Uros Stankovic
Fix For: 4.4.0
When we use JDBC DSv2 join pushdown, I noticed two bugs:
- When I specify partitioning options, query fails with error "Options query
and partition_coumn can not be specified together". It is expected that query
runs successfully even join and partitioning can't be supported that easily.
- Partial aggregate pushdown optimizer rule can pushdown AVG to SUM/COUNT with
multiple partitions, in that case, incorrect result is returned in some cases.
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