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h2database
Commits
58fb6fca
提交
58fb6fca
authored
7 年前
作者:
Evgenij Ryazanov
浏览文件
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电子邮件补丁
差异文件
Handle tables with specified schema in Parser.parseMergeUsing()
上级
ca7eaa69
无相关合并请求
隐藏空白字符变更
内嵌
并排
正在显示
2 个修改的文件
包含
55 行增加
和
11 行删除
+55
-11
Parser.java
h2/src/main/org/h2/command/Parser.java
+13
-10
mergeUsing.sql
h2/src/test/org/h2/test/scripts/dml/mergeUsing.sql
+42
-1
没有找到文件。
h2/src/main/org/h2/command/Parser.java
浏览文件 @
58fb6fca
...
...
@@ -1150,11 +1150,8 @@ public class Parser {
TableFilter
sourceTableFilter
=
readSimpleTableFilter
(
0
,
excludeIdentifiers
);
command
.
setSourceTableFilter
(
sourceTableFilter
);
StringBuilder
buff
=
new
StringBuilder
(
"SELECT * FROM "
)
.
append
(
sourceTableFilter
.
getTable
().
getName
());
if
(
sourceTableFilter
.
getTableAlias
()
!=
null
)
{
buff
.
append
(
" AS "
).
append
(
sourceTableFilter
.
getTableAlias
());
}
StringBuilder
buff
=
new
StringBuilder
(
"SELECT * FROM "
);
appendTableWithSchemaAndAlias
(
buff
,
sourceTableFilter
.
getTable
(),
sourceTableFilter
.
getTableAlias
());
Prepared
preparedQuery
=
prepare
(
session
,
buff
.
toString
(),
null
/*paramValues*/
);
command
.
setQuery
((
Select
)
preparedQuery
);
...
...
@@ -1197,11 +1194,9 @@ public class Parser {
// build and prepare the targetMatchQuery ready to test each rows
// existence in the target table (using source row to match)
StringBuilder
targetMatchQuerySQL
=
new
StringBuilder
(
"SELECT _ROWID_ FROM "
+
command
.
getTargetTable
().
getName
());
if
(
command
.
getTargetTableFilter
().
getTableAlias
()
!=
null
)
{
targetMatchQuerySQL
.
append
(
" AS "
).
append
(
command
.
getTargetTableFilter
().
getTableAlias
());
}
StringBuilder
targetMatchQuerySQL
=
new
StringBuilder
(
"SELECT _ROWID_ FROM "
);
appendTableWithSchemaAndAlias
(
targetMatchQuerySQL
,
command
.
getTargetTable
(),
command
.
getTargetTableFilter
().
getTableAlias
());
targetMatchQuerySQL
.
append
(
" WHERE "
).
append
(
command
.
getOnCondition
().
getSQL
());
command
.
setTargetMatchQuery
(
...
...
@@ -1210,6 +1205,14 @@ public class Parser {
return
command
;
}
private
static
void
appendTableWithSchemaAndAlias
(
StringBuilder
buff
,
Table
table
,
String
alias
)
{
buff
.
append
(
quoteIdentifier
(
table
.
getSchema
().
getName
()))
.
append
(
'.'
).
append
(
quoteIdentifier
(
table
.
getName
()));
if
(
alias
!=
null
)
{
buff
.
append
(
" AS "
).
append
(
quoteIdentifier
(
alias
));
}
}
private
Insert
parseInsert
()
{
Insert
command
=
new
Insert
(
session
);
currentPrepared
=
command
;
...
...
This diff is collapsed.
Click to expand it.
h2/src/test/org/h2/test/scripts/dml/mergeUsing.sql
浏览文件 @
58fb6fca
...
...
@@ -30,4 +30,45 @@ EXPLAIN PLAN
INSERT
(
ID
,
NAME
)
VALUES
(
S
.
ID
,
S
.
NAME
);
>
PLAN
>
---------------------------------------------------------------------------------------------------------------------------------
>
MERGE
INTO
PUBLIC
.
PARENT
(
ID
,
NAME
)
KEY
(
ID
)
SELECT
X
AS
ID
,
(
'Coco'
||
X
)
AS
NAME
FROM
SYSTEM_RANGE
(
1
,
2
)
/* PUBLIC.RANGE_INDEX */
\ No newline at end of file
>
MERGE
INTO
PUBLIC
.
PARENT
(
ID
,
NAME
)
KEY
(
ID
)
SELECT
X
AS
ID
,
(
'Coco'
||
X
)
AS
NAME
FROM
SYSTEM_RANGE
(
1
,
2
)
/* PUBLIC.RANGE_INDEX */
DROP
TABLE
PARENT
;
>
ok
CREATE
SCHEMA
SOURCESCHEMA
;
>
ok
CREATE
TABLE
SOURCESCHEMA
.
SOURCE
(
ID
INT
PRIMARY
KEY
,
VALUE
INT
);
>
ok
INSERT
INTO
SOURCESCHEMA
.
SOURCE
VALUES
(
1
,
10
),
(
3
,
30
),
(
5
,
50
);
>
update
count
:
3
CREATE
SCHEMA
DESTSCHEMA
;
>
ok
CREATE
TABLE
DESTSCHEMA
.
DESTINATION
(
ID
INT
PRIMARY
KEY
,
VALUE
INT
);
>
ok
INSERT
INTO
DESTSCHEMA
.
DESTINATION
VALUES
(
3
,
300
),
(
6
,
600
);
>
update
count
:
2
MERGE
INTO
DESTSCHEMA
.
DESTINATION
USING
SOURCESCHEMA
.
SOURCE
ON
(
DESTSCHEMA
.
DESTINATION
.
ID
=
SOURCESCHEMA
.
SOURCE
.
ID
)
WHEN
MATCHED
THEN
UPDATE
SET
VALUE
=
SOURCESCHEMA
.
SOURCE
.
VALUE
WHEN
NOT
MATCHED
THEN
INSERT
(
ID
,
VALUE
)
VALUES
(
SOURCESCHEMA
.
SOURCE
.
ID
,
SOURCESCHEMA
.
SOURCE
.
VALUE
);
>
update
count
:
3
SELECT
*
FROM
DESTSCHEMA
.
DESTINATION
;
>
ID
VALUE
>
-- -----
>
1
10
>
3
30
>
5
50
>
6
600
>
rows
:
4
DROP
SCHEMA
SOURCESCHEMA
CASCADE
;
>
ok
DROP
SCHEMA
DESTSCHEMA
CASCADE
;
>
ok
This diff is collapsed.
Click to expand it.
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