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h2database
Commits
34cc207d
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34cc207d
authored
7 年前
作者:
Noel Grandin
提交者:
GitHub
7 年前
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Merge pull request #550 from stumc/Issue#549
Issue#549 Removed UNION ALL requirements for CTE
上级
c1d7d6cc
f67daf93
隐藏空白字符变更
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正在显示
2 个修改的文件
包含
26 行增加
和
7 行删除
+26
-7
ViewIndex.java
h2/src/main/org/h2/index/ViewIndex.java
+1
-5
TestRecursiveQueries.java
h2/src/test/org/h2/test/db/TestRecursiveQueries.java
+25
-2
没有找到文件。
h2/src/main/org/h2/index/ViewIndex.java
浏览文件 @
34cc207d
...
...
@@ -196,13 +196,9 @@ public class ViewIndex extends BaseIndex implements SpatialIndex {
}
if
(!
query
.
isUnion
())
{
throw
DbException
.
get
(
ErrorCode
.
SYNTAX_ERROR_2
,
"recursive queries without UNION
ALL
"
);
"recursive queries without UNION"
);
}
SelectUnion
union
=
(
SelectUnion
)
query
;
if
(
union
.
getUnionType
()
!=
SelectUnion
.
UNION_ALL
)
{
throw
DbException
.
get
(
ErrorCode
.
SYNTAX_ERROR_2
,
"recursive queries without UNION ALL"
);
}
Query
left
=
union
.
getLeft
();
// to ensure the last result is not closed
left
.
disableCache
();
...
...
This diff is collapsed.
Click to expand it.
h2/src/test/org/h2/test/db/TestRecursiveQueries.java
浏览文件 @
34cc207d
...
...
@@ -29,7 +29,8 @@ public class TestRecursiveQueries extends TestBase {
@Override
public
void
test
()
throws
Exception
{
testWrongLinkLargeResult
();
testSimple
();
testSimpleUnionAll
();
testSimpleUnion
();
}
private
void
testWrongLinkLargeResult
()
throws
Exception
{
...
...
@@ -60,7 +61,7 @@ public class TestRecursiveQueries extends TestBase {
deleteDb
(
"recursiveQueries"
);
}
private
void
testSimple
()
throws
Exception
{
private
void
testSimple
UnionAll
()
throws
Exception
{
deleteDb
(
"recursiveQueries"
);
Connection
conn
=
getConnection
(
"recursiveQueries"
);
Statement
stat
;
...
...
@@ -155,5 +156,27 @@ public class TestRecursiveQueries extends TestBase {
conn
.
close
();
deleteDb
(
"recursiveQueries"
);
}
private
void
testSimpleUnion
()
throws
Exception
{
deleteDb
(
"recursiveQueries"
);
Connection
conn
=
getConnection
(
"recursiveQueries"
);
Statement
stat
;
ResultSet
rs
;
stat
=
conn
.
createStatement
();
rs
=
stat
.
executeQuery
(
"with recursive t(n) as "
+
"(select 1 union select n+1 from t where n<3) "
+
"select * from t"
);
assertTrue
(
rs
.
next
());
assertEquals
(
1
,
rs
.
getInt
(
1
));
assertTrue
(
rs
.
next
());
assertEquals
(
2
,
rs
.
getInt
(
1
));
assertTrue
(
rs
.
next
());
assertEquals
(
3
,
rs
.
getInt
(
1
));
assertFalse
(
rs
.
next
());
conn
.
close
();
deleteDb
(
"recursiveQueries"
);
}
}
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