Jussi Saurio 3010dc0255 mvcc: add CheckpointStateMachine ...

performs a blocking, truncating checkpoint:

- when started, blocks any other transactions from starting
- writes all row versions to pager that havent already been
  checkpointed
- flushes them to wal
- checkpoints wal to db

in the case of added/deleted rows in table id 1 (sqlite schema),
also creates/destroys btrees accordingly

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..

checkpoint_state_machine.rs

mvcc: add CheckpointStateMachine

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mod.rs

mvcc: add CheckpointStateMachine

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tests.rs

mvcc: remove unused states and fields from CommitStateMachine

2025-09-25 08:12:12 +03:00