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I've attached a simple patch which should improve the performance of

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hashname() and reduce the penalty incured when NAMEDATALEN is increased.
I posted this to -hackers a couple days ago, and there haven't been any
major complaints. It passes the regression tests. See -hackers for more
discussion, as well as the suggestion from Tom Lane on which this patch
is based.

Unless anyone sees any problems, please apply for 7.3.

Cheers,

Neil Conway
This commit is contained in:
Bruce Momjian
2002-02-25 04:06:52 +00:00
parent 7464e7f25a
commit f5dff44736
3 changed files with 8 additions and 26 deletions
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4
src/include/access/hash.h
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@@ -7,7 +7,7 @@
* Portions Copyright (c) 1996-2001, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $Id: hash.h,v 1.42 2001/11/05 17:46:31 momjian Exp $
* $Id: hash.h,v 1.43 2002/02/25 04:06:52 momjian Exp $
*
* NOTES
* modeled after Margo Seltzer's hash implementation for unix.
@@ -265,7 +265,7 @@ extern Datum hashoidvector(PG_FUNCTION_ARGS);
extern Datum hashint2vector(PG_FUNCTION_ARGS);
extern Datum hashname(PG_FUNCTION_ARGS);
extern Datum hashvarlena(PG_FUNCTION_ARGS);
extern Datum hash_any(char *keydata, int keylen);
extern Datum hash_any(const char *keydata, int keylen);
/* private routines */