Skip to content
体验新版
项目
组织
正在加载...
登录
切换导航
打开侧边栏
Greenplum
Gpdb
提交
94d8bbe5
G
Gpdb
项目概览
Greenplum
/
Gpdb
通知
7
Star
1
Fork
0
代码
文件
提交
分支
Tags
贡献者
分支图
Diff
Issue
0
列表
看板
标记
里程碑
合并请求
0
DevOps
流水线
流水线任务
计划
Wiki
0
Wiki
分析
仓库
DevOps
项目成员
Pages
G
Gpdb
项目概览
项目概览
详情
发布
仓库
仓库
文件
提交
分支
标签
贡献者
分支图
比较
Issue
0
Issue
0
列表
看板
标记
里程碑
合并请求
0
合并请求
0
Pages
DevOps
DevOps
流水线
流水线任务
计划
分析
分析
仓库分析
DevOps
Wiki
0
Wiki
成员
成员
收起侧边栏
关闭侧边栏
动态
分支图
创建新Issue
流水线任务
提交
Issue看板
体验新版 GitCode,发现更多精彩内容 >>
提交
94d8bbe5
编写于
11月 02, 2000
作者:
T
Tom Lane
浏览文件
操作
浏览文件
下载
电子邮件补丁
差异文件
Improve inv_getsize() per suggestion from Denis Perchine; also fix
thinkos in inv_seek().
上级
db263da4
变更
1
隐藏空白更改
内联
并排
Showing
1 changed file
with
16 addition
and
11 deletion
+16
-11
src/backend/storage/large_object/inv_api.c
src/backend/storage/large_object/inv_api.c
+16
-11
未找到文件。
src/backend/storage/large_object/inv_api.c
浏览文件 @
94d8bbe5
...
...
@@ -9,7 +9,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/storage/large_object/inv_api.c,v 1.
79 2000/10/24 01:38:29
tgl Exp $
* $Header: /cvsroot/pgsql/src/backend/storage/large_object/inv_api.c,v 1.
80 2000/11/02 23:52:06
tgl Exp $
*
*-------------------------------------------------------------------------
*/
...
...
@@ -186,7 +186,6 @@ inv_getsize(LargeObjectDesc *obj_desc)
{
bool
found
=
false
;
uint32
lastbyte
=
0
;
uint32
thislastbyte
;
ScanKeyData
skey
[
1
];
IndexScanDesc
sd
;
RetrieveIndexResult
indexRes
;
...
...
@@ -209,7 +208,13 @@ inv_getsize(LargeObjectDesc *obj_desc)
tuple
.
t_datamcxt
=
CurrentMemoryContext
;
tuple
.
t_data
=
NULL
;
while
((
indexRes
=
index_getnext
(
sd
,
ForwardScanDirection
)))
/*
* Because the pg_largeobject index is on both loid and pageno,
* but we constrain only loid, a backwards scan should visit all
* pages of the large object in reverse pageno order. So, it's
* sufficient to examine the first valid tuple (== last valid page).
*/
while
((
indexRes
=
index_getnext
(
sd
,
BackwardScanDirection
)))
{
tuple
.
t_self
=
indexRes
->
heap_iptr
;
heap_fetch
(
obj_desc
->
heap_r
,
SnapshotNow
,
&
tuple
,
&
buffer
);
...
...
@@ -226,12 +231,11 @@ inv_getsize(LargeObjectDesc *obj_desc)
heap_tuple_untoast_attr
((
varattrib
*
)
datafield
);
pfreeit
=
true
;
}
thislastbyte
=
data
->
pageno
*
LOBLKSIZE
+
getbytealen
(
datafield
);
if
(
thislastbyte
>
lastbyte
)
lastbyte
=
thislastbyte
;
lastbyte
=
data
->
pageno
*
LOBLKSIZE
+
getbytealen
(
datafield
);
if
(
pfreeit
)
pfree
(
datafield
);
ReleaseBuffer
(
buffer
);
break
;
}
index_endscan
(
sd
);
...
...
@@ -254,16 +258,17 @@ inv_seek(LargeObjectDesc *obj_desc, int offset, int whence)
obj_desc
->
offset
=
offset
;
break
;
case
SEEK_CUR
:
if
(
(
obj_desc
->
offset
+
offset
)
<
0
)
if
(
offset
<
0
&&
obj_desc
->
offset
<
((
uint32
)
(
-
offset
))
)
elog
(
ERROR
,
"inv_seek: invalid offset: %d"
,
offset
);
obj_desc
->
offset
+=
offset
;
break
;
case
SEEK_END
:
{
uint32
size
=
inv_getsize
(
obj_desc
);
if
(
offset
<
0
||
((
uint32
)
offset
)
>
size
)
elog
(
ERROR
,
"inv_seek: invalid offset"
);
obj_desc
->
offset
=
size
-
offset
;
uint32
size
=
inv_getsize
(
obj_desc
);
if
(
offset
<
0
&&
size
<
((
uint32
)
(
-
offset
)))
elog
(
ERROR
,
"inv_seek: invalid offset: %d"
,
offset
);
obj_desc
->
offset
=
size
+
offset
;
}
break
;
default:
...
...
编辑
预览
Markdown
is supported
0%
请重试
或
添加新附件
.
添加附件
取消
You are about to add
0
people
to the discussion. Proceed with caution.
先完成此消息的编辑!
取消
想要评论请
注册
或
登录