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  1. Ignite
  2. IGNITE-8207

SQL TX: Cleanup own previous changes on update

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    • Task
    • Status: Resolved
    • Major
    • Resolution: Won't Fix
    • None
    • 2.7
    • mvcc
    • None

    Description

      During update process we're cleaning up rows, which became invisible for all readers.

      Updating a row more than once we are free to cleanup previous own changes except last one. This means we shouldn't leave more than two rows per key with version equal to current tx for updates and one for delete operations.

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              rkondakov Roman Kondakov
              gvvinblade Igor Seliverstov
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