--- indices.sgml 2008-10-13 14:40:06.000000000 -0500 +++ indices.sgml.NEW 2008-11-04 12:42:35.000000000 -0600 @@ -190,13 +190,11 @@ - Testing has shown PostgreSQL's hash - indexes to perform no better than B-tree indexes, and the - index size and build time for hash indexes is much worse. - Furthermore, hash index operations are not presently WAL-logged, + PostgreSQL's hash indexes provide + the fast O(1) lookups, even for very large objects. + Hash index operations are not presently WAL-logged, so hash indexes might need to be rebuilt with REINDEX - after a database crash. - For these reasons, hash index use is presently discouraged. + after a database crash.