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体验新版 GitCode,发现更多精彩内容 >>
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8f125413
编写于
1月 08, 1998
作者:
B
Bruce Momjian
浏览文件
操作
浏览文件
下载
电子邮件补丁
差异文件
Cleanup of varchar.
上级
84ef6aae
变更
1
隐藏空白更改
内联
并排
Showing
1 changed file
with
18 addition
and
33 deletion
+18
-33
src/backend/utils/adt/varchar.c
src/backend/utils/adt/varchar.c
+18
-33
未找到文件。
src/backend/utils/adt/varchar.c
浏览文件 @
8f125413
...
@@ -7,7 +7,7 @@
...
@@ -7,7 +7,7 @@
*
*
*
*
* IDENTIFICATION
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/utils/adt/varchar.c,v 1.2
2 1998/01/08 04:58:19
momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/utils/adt/varchar.c,v 1.2
3 1998/01/08 06:18:18
momjian Exp $
*
*
*-------------------------------------------------------------------------
*-------------------------------------------------------------------------
*/
*/
...
@@ -327,29 +327,13 @@ bpcharcmp(char *arg1, char *arg2)
...
@@ -327,29 +327,13 @@ bpcharcmp(char *arg1, char *arg2)
* Comparison Functions used for varchar
* Comparison Functions used for varchar
*****************************************************************************/
*****************************************************************************/
static
int
vcTruelen
(
char
*
arg
)
{
char
*
s
=
VARDATA
(
arg
);
int
i
;
int
len
;
len
=
VARSIZE
(
arg
)
-
VARHDRSZ
;
for
(
i
=
0
;
i
<
len
;
i
++
)
{
if
(
*
s
++
==
'\0'
)
break
;
}
return
i
;
}
int32
int32
varcharlen
(
char
*
arg
)
varcharlen
(
char
*
arg
)
{
{
if
(
!
PointerIsValid
(
arg
))
if
(
!
PointerIsValid
(
arg
))
elog
(
ERROR
,
"Bad (null) varchar() external representation"
,
NULL
);
elog
(
ERROR
,
"Bad (null) varchar() external representation"
,
NULL
);
return
(
vcTruelen
(
arg
)
);
return
(
VARSIZE
(
arg
)
-
VARHDRSZ
);
}
}
bool
bool
...
@@ -360,8 +344,9 @@ varchareq(char *arg1, char *arg2)
...
@@ -360,8 +344,9 @@ varchareq(char *arg1, char *arg2)
if
(
arg1
==
NULL
||
arg2
==
NULL
)
if
(
arg1
==
NULL
||
arg2
==
NULL
)
return
((
bool
)
0
);
return
((
bool
)
0
);
len1
=
vcTruelen
(
arg1
);
len2
=
vcTruelen
(
arg2
);
len1
=
VARSIZE
(
arg1
)
-
VARHDRSZ
;
len2
=
VARSIZE
(
arg2
)
-
VARHDRSZ
;
if
(
len1
!=
len2
)
if
(
len1
!=
len2
)
return
0
;
return
0
;
...
@@ -377,8 +362,8 @@ varcharne(char *arg1, char *arg2)
...
@@ -377,8 +362,8 @@ varcharne(char *arg1, char *arg2)
if
(
arg1
==
NULL
||
arg2
==
NULL
)
if
(
arg1
==
NULL
||
arg2
==
NULL
)
return
((
bool
)
0
);
return
((
bool
)
0
);
len1
=
vcTruelen
(
arg1
)
;
len1
=
VARSIZE
(
arg1
)
-
VARHDRSZ
;
len2
=
vcTruelen
(
arg2
)
;
len2
=
VARSIZE
(
arg2
)
-
VARHDRSZ
;
if
(
len1
!=
len2
)
if
(
len1
!=
len2
)
return
1
;
return
1
;
...
@@ -395,8 +380,8 @@ varcharlt(char *arg1, char *arg2)
...
@@ -395,8 +380,8 @@ varcharlt(char *arg1, char *arg2)
if
(
arg1
==
NULL
||
arg2
==
NULL
)
if
(
arg1
==
NULL
||
arg2
==
NULL
)
return
((
bool
)
0
);
return
((
bool
)
0
);
len1
=
vcTruelen
(
arg1
)
;
len1
=
VARSIZE
(
arg1
)
-
VARHDRSZ
;
len2
=
vcTruelen
(
arg2
)
;
len2
=
VARSIZE
(
arg2
)
-
VARHDRSZ
;
cmp
=
strncmp
(
VARDATA
(
arg1
),
VARDATA
(
arg2
),
Min
(
len1
,
len2
));
cmp
=
strncmp
(
VARDATA
(
arg1
),
VARDATA
(
arg2
),
Min
(
len1
,
len2
));
if
(
cmp
==
0
)
if
(
cmp
==
0
)
...
@@ -414,8 +399,8 @@ varcharle(char *arg1, char *arg2)
...
@@ -414,8 +399,8 @@ varcharle(char *arg1, char *arg2)
if
(
arg1
==
NULL
||
arg2
==
NULL
)
if
(
arg1
==
NULL
||
arg2
==
NULL
)
return
((
bool
)
0
);
return
((
bool
)
0
);
len1
=
vcTruelen
(
arg1
)
;
len1
=
VARSIZE
(
arg1
)
-
VARHDRSZ
;
len2
=
vcTruelen
(
arg2
)
;
len2
=
VARSIZE
(
arg2
)
-
VARHDRSZ
;
cmp
=
strncmp
(
VARDATA
(
arg1
),
VARDATA
(
arg2
),
Min
(
len1
,
len2
));
cmp
=
strncmp
(
VARDATA
(
arg1
),
VARDATA
(
arg2
),
Min
(
len1
,
len2
));
if
(
0
==
cmp
)
if
(
0
==
cmp
)
...
@@ -433,8 +418,8 @@ varchargt(char *arg1, char *arg2)
...
@@ -433,8 +418,8 @@ varchargt(char *arg1, char *arg2)
if
(
arg1
==
NULL
||
arg2
==
NULL
)
if
(
arg1
==
NULL
||
arg2
==
NULL
)
return
((
bool
)
0
);
return
((
bool
)
0
);
len1
=
vcTruelen
(
arg1
)
;
len1
=
VARSIZE
(
arg1
)
-
VARHDRSZ
;
len2
=
vcTruelen
(
arg2
)
;
len2
=
VARSIZE
(
arg2
)
-
VARHDRSZ
;
cmp
=
strncmp
(
VARDATA
(
arg1
),
VARDATA
(
arg2
),
Min
(
len1
,
len2
));
cmp
=
strncmp
(
VARDATA
(
arg1
),
VARDATA
(
arg2
),
Min
(
len1
,
len2
));
if
(
cmp
==
0
)
if
(
cmp
==
0
)
...
@@ -452,8 +437,8 @@ varcharge(char *arg1, char *arg2)
...
@@ -452,8 +437,8 @@ varcharge(char *arg1, char *arg2)
if
(
arg1
==
NULL
||
arg2
==
NULL
)
if
(
arg1
==
NULL
||
arg2
==
NULL
)
return
((
bool
)
0
);
return
((
bool
)
0
);
len1
=
vcTruelen
(
arg1
)
;
len1
=
VARSIZE
(
arg1
)
-
VARHDRSZ
;
len2
=
vcTruelen
(
arg2
)
;
len2
=
VARSIZE
(
arg2
)
-
VARHDRSZ
;
cmp
=
strncmp
(
VARDATA
(
arg1
),
VARDATA
(
arg2
),
Min
(
len1
,
len2
));
cmp
=
strncmp
(
VARDATA
(
arg1
),
VARDATA
(
arg2
),
Min
(
len1
,
len2
));
if
(
0
==
cmp
)
if
(
0
==
cmp
)
...
@@ -470,8 +455,8 @@ varcharcmp(char *arg1, char *arg2)
...
@@ -470,8 +455,8 @@ varcharcmp(char *arg1, char *arg2)
len2
;
len2
;
int
cmp
;
int
cmp
;
len1
=
vcTruelen
(
arg1
)
;
len1
=
VARSIZE
(
arg1
)
-
VARHDRSZ
;
len2
=
vcTruelen
(
arg2
)
;
len2
=
VARSIZE
(
arg2
)
-
VARHDRSZ
;
cmp
=
(
strncmp
(
VARDATA
(
arg1
),
VARDATA
(
arg2
),
Min
(
len1
,
len2
)));
cmp
=
(
strncmp
(
VARDATA
(
arg1
),
VARDATA
(
arg2
),
Min
(
len1
,
len2
)));
if
((
0
==
cmp
)
&&
(
len1
!=
len2
))
if
((
0
==
cmp
)
&&
(
len1
!=
len2
))
return
(
int32
)
(
len1
<
len2
?
-
1
:
1
);
return
(
int32
)
(
len1
<
len2
?
-
1
:
1
);
...
@@ -536,7 +521,7 @@ hashvarchar(struct varlena * key)
...
@@ -536,7 +521,7 @@ hashvarchar(struct varlena * key)
int
loop
;
int
loop
;
keydata
=
VARDATA
(
key
);
keydata
=
VARDATA
(
key
);
keylen
=
vcTruelen
((
char
*
)
key
)
;
keylen
=
VARSIZE
(
key
)
-
VARHDRSZ
;
#define HASHC n = *keydata++ + 65599 * n
#define HASHC n = *keydata++ + 65599 * n
...
...
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