Attach fixes sim#5509

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glommer wants to merge 17 commits intotursodatabase:mainfrom

glommer:attach-fixes-sim

Commits on Feb 21, 2026

feat: add ATTACH database infrastructure to deterministic simulator

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fix: ATTACH database write commit, schema visibility, and read locking

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fix: ALTER TABLE on attached databases

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fix: clean up attached pager state on reprepare

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fix: preserve database prefix in shadow ALTER TABLE RENAME

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fix: ON CONFLICT schema resolution for attached databases

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fix: reprepare cleanup for attached DB read transactions

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fix: statement savepoints and commit error propagation for attached DBs

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fix: handle CommittingAttached state on re-entry in op_auto_commit

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fix: clear attached DB schema cache on rollback

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fix: IntegrityCk instruction uses wrong pager for attached databases

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fix: UPDATE with PK change on attached DB uses wrong database_id for OpenWrite

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fix: check DATABASE_MANAGER registry before file lock in open_file_with_flags

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fix: release attached pager read locks after main DB write commit

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refactor: replace database_id magic numbers with named constants

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fix: invalidate rusqlite schema cache for attached databases in simulator

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Commits on Feb 22, 2026

Merge branch 'main' into attach-fixes-sim
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