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fix(db): checkpoint inside a WriteTransaction returns INT-001 instead of deadlocking (#734) — backport - #740
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… of deadlocking (#734) — backport checkpoint locked the write lock its own thread's WriteTransaction held. prepare and PreparedQuery::execute get the same guard for consistency. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_015NBT2Yx9JUQKYvv2CvC9py
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_015NBT2Yx9JUQKYvv2CvC9py
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This was referenced Oct 24, 2026
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Backport of #739 to v2.x.
checkpointon a thread that holds aWriteTransactionlocked the write lock that the transaction already held, and hung. It now returnsINT-001, asexecuteandbegin_writedo.prepareandPreparedQuery::executeget the same check, for consistency.verify,rebuild_indexesandPreparedQuery::querydon't exist on v2.x.Tests:
tests/write_tx_guard_test.rs(4 tests, each under a 30 s timeout). Bench machine: 1,321 passed, 9 ignored. Clippy clean.#734 stays open until the v2.x patch with this fix is published.
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