Kenneth Marshall wrote:
I had submitted the documentation change as part of my
hash function patch but it was removed as not relevant.
(It wasn't really.) I would basically remove the first
sentence:
Note: Hash index operations are not presently WAL-logged,
so hash indexes might
Hi,
indices.sgml contains this paragraph about hash indexes:
Note: 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, so
I had submitted the documentation change as part of my
hash function patch but it was removed as not relevant.
(It wasn't really.) I would basically remove the first
sentence:
Note: Hash index operations are not presently WAL-logged,
so hash indexes might need to be rebuilt with REINDEX
The main speed improvement is for varchar datatype. I think It should be
mention here as well. IIRC, times are similar with B-Tree for integer
datatype.
Zdenek
Kenneth Marshall píše v st 04. 02. 2009 v 13:57 -0600:
I had submitted the documentation change as part of my
hash function
On Wed, Feb 04, 2009 at 11:22:44PM +0100, Zdenek Kotala wrote:
The main speed improvement is for varchar datatype. I think It should be
mention here as well. IIRC, times are similar with B-Tree for integer
datatype.
Zdenek
Kenneth Marshall pe v st 04. 02. 2009 v 13:57 -0600:
I
