Commits on Feb 5, 2024

1. spanconfig: correctly order updates when applying in the KVSubscriber …

   Previously, there was no ordering guarantee between KVSubscriber
   events at the same timestamp. As a result, if a batch of events
   included updates to overlapping spans at the same timestamp, we could
   apply additions before deletions -- this would cause the additions to
   get clobbered, which was not the intention. This could lead to missing
   span configurations, resulting in bugs such as the linked issue.
   
   This patch fixes the issue by sorting deletions before additions if
   two span configuration events have the same timestamp.
   
   Closes cockroachdb#110908
   
   Release note (bug fix): Previously, altering from a Regional By Row
   table to a Regional By Table table could cause leaseholders to never
   move to the databse's primary region. This is now fixed.

   

   arulajmani committed Feb 5, 2024
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