Spark 3.3: Remove unnecessary metadata columns reading when merge using Iceberg table#7985
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ConeyLiu wants to merge 1 commit into
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Spark 3.3: Remove unnecessary metadata columns reading when merge using Iceberg table#7985ConeyLiu wants to merge 1 commit into
ConeyLiu wants to merge 1 commit into
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Contributor
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Hi @rdblue @szehon-ho @aokolnychyi @RussellSpitzer @Fokko, could you please help to review this when you are free? Thanks a lot. |
Member
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@huaxingao I believe you did the Spark fix for this? |
Contributor
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I think the problem has already been fixed in Spark 3.3 by this PR |
Contributor
Author
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Thanks @RussellSpitzer @huaxingao, I see, that's because the Spark 3.3.3 is not released. |
Contributor
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Close this since Spark 3.3 has been fixed. |
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There are many unnecessary metadata columns reading when merging using the Iceberg table. The problem should be caused by Spark 3.3 AddMetadataColumns rule which has been fixed in Spark 3.4.
In this PR, we add a rule to remove the unnecessary metadata column reading to fix the problem in Spark 3.3.
Before this PR:
After this PR:
