Code Review Bench PR #20106 - fix: resolve race condition in compound trigger evaluation#20
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Fixes two race conditions in compound trigger evaluation: 1. **Never-firing race** (transactional): When two child triggers fire concurrently in separate transactions, each only sees its own uncommitted insert due to READ COMMITTED isolation. Neither sees enough firings to trigger the parent. Fix: Use PostgreSQL advisory locks to serialize concurrent evaluations for the same compound trigger. 2. **Double-firing race** (autocommit): When both transactions see all firings, both delete and both fire the parent. Fix: Use DELETE ... RETURNING to make clearing a claim operation. Only the worker that successfully deletes the expected firings proceeds; others bail out. Based on the fix in PrefectHQ/nebula#10716. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
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Benchmark PR for Gitar evaluation
Original PR: agentic-review-benchmarks#7
fix: resolve race condition in compound trigger evaluation