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by franckpachot
1108 days ago
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Bitmap Scan relies on shared buffers. Distributed SQL cannot share the buffers between nodes. BitmapAnd is nice but expensive.
I prefer a compound index on foo(bar, baz) but PostgreSQL needs an additional index if there are query with condition on baz only. YugabyteDB, thanks to hybrid scan, can use this single index also for SELECT * FROM foo WHERE baz = 4; |
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