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If you are using a recent postgreql release and have just run ANALYZE, the pg_class.reltuples percentage error relative to the true row count will almost always
by davidgould 8y ago
If you are using a recent postgreql release and have just run ANALYZE, the pg_class.reltuples percentage error relative to the true row count will almost always be less than 1.0/DEFAULT_STATISTICS_TARGET, and usually substantially better than that.