database/postgres
1
0
Fork 0
mirror of https://github.com/postgres/postgres.git synced 2025-07-31 22:04:40 +03:00
Code Activity

Use memcmp() rather than strncmp() when shorter string length is known.

Browse Source 
It appears that this will be faster for all but the shortest strings;
at least one some platforms, memcmp() can use word-at-a-time comparisons.

Noah Misch, somewhat pared down.
This commit is contained in:
Robert Haas
2010-12-21 22:11:40 -05:00
parent c5160b7eec
commit 32ba2b5160
7 changed files with 33 additions and 33 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
contrib/ltree/ltree_gist.c
View File

@ -546,7 +546,7 @@ gist_tqcmp(ltree *t, lquery *q)
while (an > 0 && bn > 0)
{
bl = LQL_FIRST(ql);
if ((res = strncmp(al->name, bl->name, Min(al->len, bl->len))) == 0)
if ((res = memcmp(al->name, bl->name, Min(al->len, bl->len))) == 0)
{
if (al->len != bl->len)
return al->len - bl->len;