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Compare 'char' and 'text' lexicographically.

This commit is contained in:
Vadim B. Mikheev 1997-06-11 05:20:05 +00:00
parent 0346ab7175
commit 1561684a2d
1 changed files with 5 additions and 6 deletions
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11
src/backend/access/nbtree/nbtcompare.c
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@ -7,7 +7,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/access/nbtree/nbtcompare.c,v 1.9 1997/05/22 00:07:15 scrappy Exp $
* $Header: /cvsroot/pgsql/src/backend/access/nbtree/nbtcompare.c,v 1.10 1997/06/11 05:20:05 vadim Exp $
*
* NOTES
* These functions are stored in pg_amproc. For each operator class
@ -98,7 +98,7 @@ btabstimecmp(AbsoluteTime a, AbsoluteTime b)
int32
btcharcmp(char a, char b)
{
return ((int32) (a - b));
return ((int32) ((uint8)a - (uint8)b));
}
int32
@ -135,9 +135,9 @@ int32
bttextcmp(struct varlena *a, struct varlena *b)
{
int res;
unsigned char *ap, *bp;
#ifdef USE_LOCALE
unsigned char *ap, *bp;
int la = VARSIZE(a) - VARHDRSZ;
int lb = VARSIZE(b) - VARHDRSZ;
@ -155,7 +155,6 @@ bttextcmp(struct varlena *a, struct varlena *b)
pfree (bp);
#else
char *ap, *bp;
int len = VARSIZE(a);
/* len is the length of the shorter of the two strings */
@ -164,8 +163,8 @@ bttextcmp(struct varlena *a, struct varlena *b)
len -= VARHDRSZ;
ap = VARDATA(a);
bp = VARDATA(b);
ap = (unsigned char *) VARDATA(a);
bp = (unsigned char *) VARDATA(b);
/*
* If the two strings differ in the first len bytes, or if they're