Preclaiming two-phase locking for XQuery update operations#6112

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joewiz wants to merge 19 commits into

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joewiz:feature/preclaiming-locks

Commits on May 9, 2026

[feature] Add expression infrastructure for W3C XQuery Update Facility 3.0

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[feature] Implement W3C XQUF grammar, PUL, expression classes, and in-memory mutations

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[feature] Add compile-time mutual exclusion for legacy and XQUF syntax

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[test] Add XQUF JUnit tests and XQUF bindingConflict tests

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[test] Add XQUF and legacy update performance benchmarks

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[refactor] Fix Codacy FQN warnings in XQueryContext and XQUFBasicTest

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[bugfix] Fix 6 remaining non-schema XQUF XQTS failures

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[feature] Add LockTargetCollector and XQueryContext preclaiming infrastructure

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[feature] Hook preclaiming locks into XQuery.execute()

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[test] Add concurrency benchmark for preclaiming locks

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[bugfix] Fix rename+replace attribute interaction in PUL Phase 3

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[ci] Add forked process timeout to prevent CI hangs

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[ci] Reduce forked process timeout from 600s to 180s

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[ci] Exclude hanging integration tests from failsafe

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[ci] Increase forked process timeout from 180s to 300s

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[ci] Restore forked process timeout to 600s

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Commits on May 10, 2026