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，这一点在PDF资料中也有详细论述
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We've been running this write-and-swap approach for a few months now, consistently offloading hundreds of millions of payloads each day while keeping database CPU usage and S3 costs down, and without falling behind! The key insight here is that a single write per payload into the partition copy is significantly more performant than the UPDATE / DELETE overhead from our WAL approach, since we can do the writes significantly faster than UPDATES into the original table, while causing less lock contention and less autovacuum pressure.
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