apache / doris-spark-connector

Spark Connector for Apache Doris
https://doris.apache.org/
Apache License 2.0
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[Bug] Fix data duplication caused by repartition #191

Closed JNSimba closed 8 months ago

JNSimba commented 8 months ago

Proposed changes

Issue Number: close #xxx

Problem Summary:

When we use reparation, since the rdd is transferred after rdd.queryExcetion, its physical plan may still be persisted, so after rdd repartition, the data may not meet expectations.

Checklist(Required)

  1. Does it affect the original behavior: (Yes/No/I Don't know)
  2. Has unit tests been added: (Yes/No/No Need)
  3. Has document been added or modified: (Yes/No/No Need)
  4. Does it need to update dependencies: (Yes/No)
  5. Are there any changes that cannot be rolled back: (Yes/No)

Further comments

If this is a relatively large or complex change, kick off the discussion at dev@doris.apache.org by explaining why you chose the solution you did and what alternatives you considered, etc...