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Skip locking fresh dimension rows; halve the Query Store liveness-touch rate (#4249, #4250) - #4288

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erikdarlingdata merged 3 commits into

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fix/4249-dimension-write-volume

Sep 25, 2026

Merged

Skip locking fresh dimension rows; halve the Query Store liveness-touch rate (#4249, #4250)#4288
erikdarlingdata merged 3 commits into
devfrom
fix/4249-dimension-write-volume

Commits on Sep 25, 2026
- #4249: skip fresh dim rows with an MVCC pre-filter; #4250: halve the touch-guard divisor
  
  erikdarlingdata
  and
  claude
  committed
  5b5cdb2
- #4249: live pin for the WHERE NOT EXISTS pre-filter's no-lock claim
  
  erikdarlingdata
  and
  claude
  committed
  cf090ab
- #4250: live pin for the touch guard's restart-safety claim
  
  erikdarlingdata
  and
  claude
  committed
  53405f7