Mihir Kandoi a899183087 fix(postgres): keep row locks via lock-then-read (address review) ...

Acquire the same row locks on postgres that MariaDB takes, via a separate plain
SELECT <pk> ... FOR UPDATE before each grouped/aggregate read (FOR UPDATE is
invalid with GROUP BY on postgres). Applied to all 6 aggregate lock sites.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

2026-06-17 08:50:33 +05:30

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