Skip to content
项目
群组
代码片段
帮助
正在加载...
帮助
为 GitLab 提交贡献
登录/注册
切换导航
H
h2database
项目
项目
详情
活动
周期分析
仓库
仓库
文件
提交
分支
标签
贡献者
分枝图
比较
统计图
议题
0
议题
0
列表
看板
标记
里程碑
合并请求
0
合并请求
0
CI / CD
CI / CD
流水线
作业
计划
统计图
Wiki
Wiki
代码片段
代码片段
成员
成员
折叠边栏
关闭边栏
活动
分枝图
统计图
创建新议题
作业
提交
议题看板
打开侧边栏
Administrator
h2database
Commits
9947934e
提交
9947934e
authored
7 年前
作者:
Evgenij Ryazanov
浏览文件
操作
浏览文件
下载
电子邮件补丁
差异文件
Optimize MergeUsing.isTargetRowFound()
上级
47ff9145
隐藏空白字符变更
内嵌
并排
正在显示
1 个修改的文件
包含
24 行增加
和
30 行删除
+24
-30
MergeUsing.java
h2/src/main/org/h2/command/dml/MergeUsing.java
+24
-30
没有找到文件。
h2/src/main/org/h2/command/dml/MergeUsing.java
浏览文件 @
9947934e
...
@@ -240,44 +240,38 @@ public class MergeUsing extends Prepared {
...
@@ -240,44 +240,38 @@ public class MergeUsing extends Prepared {
}
}
private
boolean
isTargetRowFound
()
{
private
boolean
isTargetRowFound
()
{
ResultInterface
rows
=
targetMatchQuery
.
query
(
0
);
try
(
ResultInterface
rows
=
targetMatchQuery
.
query
(
0
))
{
int
countTargetRowsFound
=
0
;
if
(!
rows
.
next
())
{
Value
[]
targetRowIdValue
=
null
;
return
false
;
}
while
(
rows
.
next
())
{
Value
targetRowId
=
rows
.
currentRow
()[
0
];
countTargetRowsFound
++;
Integer
number
=
targetRowidsRemembered
.
get
(
targetRowId
);
targetRowIdValue
=
rows
.
currentRow
();
// throw and exception if we have processed this _ROWID_ before...
// throw and exception if we have processed this _ROWID_ before...
if
(
targetRowidsRemembered
.
containsKey
(
targetRowIdValue
[
0
])
)
{
if
(
number
!=
null
)
{
throw
DbException
.
get
(
ErrorCode
.
DUPLICATE_KEY_1
,
throw
DbException
.
get
(
ErrorCode
.
DUPLICATE_KEY_1
,
"Merge using ON column expression, "
+
"Merge using ON column expression, "
+
"duplicate _ROWID_ target record already updated, deleted or inserted:_ROWID_="
"duplicate _ROWID_ target record already updated, deleted or inserted:_ROWID_="
+
targetRowId
Value
[
0
].
toString
()
+
":in:"
+
targetRowId
+
":in:"
+
targetTableFilter
.
getTable
()
+
targetTableFilter
.
getTable
()
+
":conflicting source row number:"
+
":conflicting source row number:"
+
targetRowidsRemembered
+
number
);
.
get
(
targetRowIdValue
[
0
]));
}
else
{
// remember the source column values we have used before (they
// are the effective ON clause keys
// and should not be repeated
targetRowidsRemembered
.
put
(
targetRowIdValue
[
0
],
sourceQueryRowNumber
);
}
}
// remember the source column values we have used before (they
// are the effective ON clause keys
// and should not be repeated
targetRowidsRemembered
.
put
(
targetRowId
,
sourceQueryRowNumber
);
if
(
rows
.
next
())
{
throw
DbException
.
get
(
ErrorCode
.
DUPLICATE_KEY_1
,
"Duplicate key updated "
+
rows
.
getRowCount
()
+
" rows at once, only 1 expected:_ROWID_="
+
targetRowId
+
":in:"
+
targetTableFilter
.
getTable
()
+
":conflicting source row number:"
+
targetRowidsRemembered
.
get
(
targetRowId
));
}
return
true
;
}
}
rows
.
close
();
if
(
countTargetRowsFound
>
1
)
{
throw
DbException
.
get
(
ErrorCode
.
DUPLICATE_KEY_1
,
"Duplicate key updated "
+
countTargetRowsFound
+
" rows at once, only 1 expected:_ROWID_="
+
targetRowIdValue
[
0
].
toString
()
+
":in:"
+
targetTableFilter
.
getTable
()
+
":conflicting source row number:"
+
targetRowidsRemembered
.
get
(
targetRowIdValue
[
0
]));
}
return
countTargetRowsFound
>
0
;
}
}
private
int
addRowByCommandInsert
(
Row
sourceRow
)
{
private
int
addRowByCommandInsert
(
Row
sourceRow
)
{
...
...
This diff is collapsed.
Click to expand it.
编写
预览
Markdown
格式
0%
重试
或
添加新文件
添加附件
取消
您添加了
0
人
到此讨论。请谨慎行事。
请先完成此评论的编辑!
取消
请
注册
或者
登录
后发表评论