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eb8866a106
Fix memory hogging in MVCC scan cursor #1104 The current scan cursor loads all rowids at once, which blows up memory on big tables. Added BucketScanCursor that loads rowids in configurable batches - better memory usage while keeping decent performance. It's a drop-in replacement with the same interface. Also included LazyScanCursor as an alternative that fetches one rowid at a time, though it's less efficient due to log(n) skipmap lookups for each row. BucketScanCursor is the recommended approach for most use cases. WDYT? Closes #1178