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release-23.1: ttljob: add hint to use PK in delete/select query #118336

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merged 1 commit into from
Jan 29, 2024

Commits on Jan 29, 2024

  1. ttljob: add hint to use PK in delete/select query

    This will help avoid choosing a plan that scans a secondary index, which
    can lead to many KV rows being scanned and also lead to contention.
    
    This updates the query used for both SELECTs and DELETEs so that they
    use the primary index.
    
    Release note (bug fix): Fixed a bug that could cause DELETE queries sent
    by the row-level TTL job to use a secondary index rather than the
    primary index to find the rows to delete. This could lead to some DELETE
    operations taking a much longer time than they should. This bug was
    present since v22.2.0.
    rafiss committed Jan 29, 2024
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