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Posted to commits@hudi.apache.org by "kazdy (Jira)" <ji...@apache.org> on 2023/02/25 09:46:00 UTC

[jira] [Created] (HUDI-5848) If no precombine field is provided make COMBINE_BEFORE_UPSERT=false automatically

kazdy created HUDI-5848:
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             Summary: If no precombine field is provided make COMBINE_BEFORE_UPSERT=false automatically
                 Key: HUDI-5848
                 URL: https://issues.apache.org/jira/browse/HUDI-5848
             Project: Apache Hudi
          Issue Type: Improvement
          Components: dev-experience
            Reporter: kazdy
            Assignee: kazdy
             Fix For: 0.13.1


Starting from 0.13 precombine field is optional in Spark.
Before this was only available in Flink, but in Flink COMBINE_BEFORE_UPSERT is set to false by default and if no precombine field is provided upserts can be done without any configuration changes.

In Hudi + Spark, on the other hand, users must explicitly set COMBINE_BEFORE_UPSERT option to false first in order to do upserts in absence of precombine field.

As a Hudi user, if no precombine field is provided I would like Hudi to automatically set the appropriate option of COMBINE_BEFORE_UPSERT, to provide a seamless experience.



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