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  1. IMPALA
  2. IMPALA-10153 Support time travel for Iceberg tables
  3. IMPALA-10893

Use old schema during time travel

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    • Sub-task
    • Status: Resolved
    • Major
    • Resolution: Fixed
    • None
    • Impala 4.3.0
    • None
    • ghx-label-3

    Description

      With Iceberg V1 we cannot retrieve the old schema of a snapshot. But V2 will have this functionality:

      https://github.com/apache/iceberg/issues/1029

      So it would make sense to use the old snapshot's table schema during a time travel query.

      Interestingly MS SQL SERVER also queries temporal tables with current table schema.

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            asherman Andrew Sherman
            boroknagyz Zoltán Borók-Nagy
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