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体验新版 GitCode,发现更多精彩内容 >>
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f8df836a
编写于
5月 09, 2008
作者:
B
Bruce Momjian
浏览文件
操作
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电子邮件补丁
差异文件
Adjust power() error messages to be more descriptive.
上级
31590406
变更
2
隐藏空白更改
内联
并排
Showing
2 changed file
with
17 addition
and
10 deletion
+17
-10
src/backend/utils/adt/float.c
src/backend/utils/adt/float.c
+7
-4
src/backend/utils/adt/numeric.c
src/backend/utils/adt/numeric.c
+10
-6
未找到文件。
src/backend/utils/adt/float.c
浏览文件 @
f8df836a
...
@@ -8,7 +8,7 @@
...
@@ -8,7 +8,7 @@
*
*
*
*
* IDENTIFICATION
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/utils/adt/float.c,v 1.15
6 2008/05/09 15:36:06
momjian Exp $
* $PostgreSQL: pgsql/src/backend/utils/adt/float.c,v 1.15
7 2008/05/09 21:31:23
momjian Exp $
*
*
*-------------------------------------------------------------------------
*-------------------------------------------------------------------------
*/
*/
...
@@ -1334,11 +1334,14 @@ dpow(PG_FUNCTION_ARGS)
...
@@ -1334,11 +1334,14 @@ dpow(PG_FUNCTION_ARGS)
* certain error conditions. Specifically, we don't return a divide-by-zero
* certain error conditions. Specifically, we don't return a divide-by-zero
* error code for 0 ^ -1.
* error code for 0 ^ -1.
*/
*/
if
((
arg1
==
0
&&
arg2
<
0
)
||
if
(
arg1
==
0
&&
arg2
<
0
)
(
arg1
<
0
&&
floor
(
arg2
)
!=
arg2
))
ereport
(
ERROR
,
ereport
(
ERROR
,
(
errcode
(
ERRCODE_INVALID_ARGUMENT_FOR_POWER_FUNCTION
),
(
errcode
(
ERRCODE_INVALID_ARGUMENT_FOR_POWER_FUNCTION
),
errmsg
(
"invalid argument for power function"
)));
errmsg
(
"zero raised to a negative power is undefined"
)));
if
(
arg1
<
0
&&
floor
(
arg2
)
!=
arg2
)
ereport
(
ERROR
,
(
errcode
(
ERRCODE_INVALID_ARGUMENT_FOR_POWER_FUNCTION
),
errmsg
(
"a negative number raised to a non-integer power yields a complex result"
)));
/*
/*
* pow() sets errno only on some platforms, depending on whether it
* pow() sets errno only on some platforms, depending on whether it
...
...
src/backend/utils/adt/numeric.c
浏览文件 @
f8df836a
...
@@ -14,7 +14,7 @@
...
@@ -14,7 +14,7 @@
* Copyright (c) 1998-2008, PostgreSQL Global Development Group
* Copyright (c) 1998-2008, PostgreSQL Global Development Group
*
*
* IDENTIFICATION
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/utils/adt/numeric.c,v 1.11
3 2008/05/09 15:36:06
momjian Exp $
* $PostgreSQL: pgsql/src/backend/utils/adt/numeric.c,v 1.11
4 2008/05/09 21:31:23
momjian Exp $
*
*
*-------------------------------------------------------------------------
*-------------------------------------------------------------------------
*/
*/
...
@@ -1897,13 +1897,17 @@ numeric_power(PG_FUNCTION_ARGS)
...
@@ -1897,13 +1897,17 @@ numeric_power(PG_FUNCTION_ARGS)
* certain error conditions. Specifically, we don't return a divide-by-zero
* certain error conditions. Specifically, we don't return a divide-by-zero
* error code for 0 ^ -1.
* error code for 0 ^ -1.
*/
*/
if
((
cmp_var
(
&
arg1
,
&
const_zero
)
==
0
&&
if
(
cmp_var
(
&
arg1
,
&
const_zero
)
==
0
&&
cmp_var
(
&
arg2
,
&
const_zero
)
<
0
)
||
cmp_var
(
&
arg2
,
&
const_zero
)
<
0
)
(
cmp_var
(
&
arg1
,
&
const_zero
)
<
0
&&
cmp_var
(
&
arg2
,
&
arg2_trunc
)
!=
0
))
ereport
(
ERROR
,
ereport
(
ERROR
,
(
errcode
(
ERRCODE_INVALID_ARGUMENT_FOR_POWER_FUNCTION
),
(
errcode
(
ERRCODE_INVALID_ARGUMENT_FOR_POWER_FUNCTION
),
errmsg
(
"invalid argument for power function"
)));
errmsg
(
"zero raised to a negative power is undefined"
)));
if
(
cmp_var
(
&
arg1
,
&
const_zero
)
<
0
&&
cmp_var
(
&
arg2
,
&
arg2_trunc
)
!=
0
)
ereport
(
ERROR
,
(
errcode
(
ERRCODE_INVALID_ARGUMENT_FOR_POWER_FUNCTION
),
errmsg
(
"a negative number raised to a non-integer power yields a complex result"
)));
/*
/*
* Call power_var() to compute and return the result; note it handles
* Call power_var() to compute and return the result; note it handles
...
...
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