store/tikv: ignore all locks except the first met lock in autocommit get #24084
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What is changed and how it works?
This PR reverts #22789. In addition, this PR makes point select with max ts ignore all locks except the first one.
The solution is to minimize changes done to the release-5.0 branch.
For the master branch, I think we can use a new protocol that brings the first lock's
start_ts
to reduce invalid retries.Check List
Tests
Benchmark result:
Release note
Fix performance regression of point select.