> * Consider using hash buckets to do DISTINCT, rather than sorting
>
> This would be beneficial when there are few distinct values.
Bracketed items "[]" have more detail.
Current maintainer: Bruce Momjian (pgman@candle.pha.pa.us)
-Last updated: Mon Aug 30 12:08:12 EDT 2004
+Last updated: Wed Sep 1 21:18:44 EDT 2004
The most recent version of this document can be viewed at the PostgreSQL web site, http://www.PostgreSQL.org.
CHECK constraints contain information about the distribution of values
within the table. This is also useful for implementing subtables where
a tables content is distributed across several subtables.
+* Consider using hash buckets to do DISTINCT, rather than sorting
+
+ This would be beneficial when there are few distinct values.
Miscellaneous