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Administrator
h2database
Commits
e3d1039b
提交
e3d1039b
authored
4月 22, 2007
作者:
Thomas Mueller
浏览文件
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电子邮件补丁
差异文件
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--no commit message
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12 个修改的文件
包含
573 行增加
和
84 行删除
+573
-84
Function.java
h2/src/main/org/h2/expression/Function.java
+117
-21
Parameter.java
h2/src/main/org/h2/expression/Parameter.java
+7
-1
Index.java
h2/src/main/org/h2/index/Index.java
+4
-0
LinkedIndex.java
h2/src/main/org/h2/index/LinkedIndex.java
+17
-8
JdbcArray.java
h2/src/main/org/h2/jdbc/JdbcArray.java
+272
-0
JdbcConnection.java
h2/src/main/org/h2/jdbc/JdbcConnection.java
+9
-30
JdbcResultSet.java
h2/src/main/org/h2/jdbc/JdbcResultSet.java
+18
-4
JdbcSQLException.java
h2/src/main/org/h2/jdbc/JdbcSQLException.java
+1
-1
TraceObject.java
h2/src/main/org/h2/message/TraceObject.java
+30
-3
TraceSystem.java
h2/src/main/org/h2/message/TraceSystem.java
+25
-13
help.csv
h2/src/main/org/h2/res/help.csv
+72
-3
ResultDiskBuffer.java
h2/src/main/org/h2/result/ResultDiskBuffer.java
+1
-0
没有找到文件。
h2/src/main/org/h2/expression/Function.java
浏览文件 @
e3d1039b
差异被折叠。
点击展开。
h2/src/main/org/h2/expression/Parameter.java
浏览文件 @
e3d1039b
...
...
@@ -11,6 +11,7 @@ import org.h2.message.Message;
import
org.h2.table.ColumnResolver
;
import
org.h2.table.TableFilter
;
import
org.h2.value.Value
;
import
org.h2.value.ValueNull
;
/**
* @author Thomas
...
...
@@ -33,7 +34,12 @@ public class Parameter extends Expression implements ParameterInterface {
}
public
Value
getParamValue
()
throws
SQLException
{
return
value
==
null
?
null
:
value
;
if
(
value
==
null
)
{
// to allow parameters in function tables
return
ValueNull
.
INSTANCE
;
}
else
{
return
value
;
}
}
public
Value
getValue
(
Session
session
)
throws
SQLException
{
...
...
h2/src/main/org/h2/index/Index.java
浏览文件 @
e3d1039b
...
...
@@ -45,6 +45,10 @@ public abstract class Index extends SchemaObject {
}
}
public
String
getDropSQL
()
{
return
null
;
}
public
SQLException
getDuplicateKeyException
()
{
StringBuffer
buff
=
new
StringBuffer
();
buff
.
append
(
getName
());
...
...
h2/src/main/org/h2/index/LinkedIndex.java
浏览文件 @
e3d1039b
...
...
@@ -40,6 +40,10 @@ public class LinkedIndex extends Index {
public
void
close
(
Session
session
)
throws
SQLException
{
}
private
boolean
isNull
(
Value
v
)
{
return
v
==
null
||
v
==
ValueNull
.
INSTANCE
;
}
public
void
add
(
Session
session
,
Row
row
)
throws
SQLException
{
StringBuffer
buff
=
new
StringBuffer
(
"INSERT INTO "
);
buff
.
append
(
originalTable
);
...
...
@@ -50,10 +54,10 @@ public class LinkedIndex extends Index {
buff
.
append
(
','
);
}
j
++;
if
(
v
!=
null
&&
v
!=
ValueNull
.
INSTANCE
)
{
buff
.
append
(
'?'
);
}
else
{
if
(
isNull
(
v
))
{
buff
.
append
(
"NULL"
);
}
else
{
buff
.
append
(
'?'
);
}
}
buff
.
append
(
')'
);
...
...
@@ -83,20 +87,25 @@ public class LinkedIndex extends Index {
buff
.
append
(
"AND "
);
}
buff
.
append
(
table
.
getColumn
(
i
).
getSQL
());
Value
v
=
row
.
getValue
(
i
);
if
(
isNull
(
v
))
{
buff
.
append
(
" IS NULL "
);
}
else
{
buff
.
append
(
"=? "
);
}
}
String
sql
=
buff
.
toString
();
try
{
PreparedStatement
prep
=
link
.
getPreparedStatement
(
sql
);
for
(
int
i
=
0
,
j
=
0
;
i
<
row
.
getColumnCount
();
i
++)
{
Value
v
=
row
.
getValue
(
i
);
if
(
v
!=
null
)
{
if
(
!
isNull
(
v
)
)
{
v
.
set
(
prep
,
j
+
1
);
j
++;
}
}
prep
.
executeUpdate
();
rowCount
--
;
int
count
=
prep
.
executeUpdate
();
rowCount
-=
count
;
}
catch
(
SQLException
e
)
{
throw
Message
.
getSQLException
(
Message
.
ERROR_ACCESSING_LINKED_TABLE_1
,
new
String
[]{
sql
},
e
);
}
...
...
@@ -185,7 +194,7 @@ public class LinkedIndex extends Index {
}
public
Value
findFirstOrLast
(
Session
session
,
boolean
first
)
throws
SQLException
{
// TODO optimization: could get the first or last value (in any case
s
; maybe not optimized)
// TODO optimization: could get the first or last value (in any case; maybe not optimized)
throw
Message
.
getUnsupportedException
();
}
...
...
h2/src/main/org/h2/jdbc/JdbcArray.java
0 → 100644
浏览文件 @
e3d1039b
/*
* Copyright 2004-2006 H2 Group. Licensed under the H2 License, Version 1.0 (http://h2database.com/html/license.html).
* Initial Developer: H2 Group
*/
package
org
.
h2
.
jdbc
;
import
java.sql.Array
;
import
java.sql.ResultSet
;
import
java.sql.SQLException
;
import
java.sql.Types
;
import
java.util.Map
;
import
org.h2.engine.SessionInterface
;
import
org.h2.message.Message
;
import
org.h2.message.TraceObject
;
import
org.h2.tools.SimpleResultSet
;
import
org.h2.value.Value
;
/**
* Represents an ARRAY value.
*/
public
class
JdbcArray
extends
TraceObject
implements
Array
{
private
Value
value
;
private
JdbcConnection
conn
;
/**
* INTERNAL
*/
public
JdbcArray
(
SessionInterface
session
,
JdbcConnection
conn
,
Value
value
,
int
id
)
{
setTrace
(
session
.
getTrace
(),
TraceObject
.
ARRAY
,
id
);
this
.
conn
=
conn
;
this
.
value
=
value
;
}
/**
* Returns the value as a Java array.
* This method always returns an Object[].
*
* @return the Object array
*/
public
Object
getArray
()
throws
SQLException
{
try
{
debugCodeCall
(
"getArray"
);
checkClosed
();
return
get
();
}
catch
(
Throwable
e
)
{
throw
logAndConvert
(
e
);
}
}
/**
* Returns the value as a Java array.
* This method always returns an Object[].
*
* @param map is ignored. Only empty or null maps are supported
* @return the Object array
*/
public
Object
getArray
(
Map
map
)
throws
SQLException
{
try
{
debugCode
(
"getArray("
+
quoteMap
(
map
)+
");"
);
checkMap
(
map
);
checkClosed
();
return
get
();
}
catch
(
Throwable
e
)
{
throw
logAndConvert
(
e
);
}
}
/**
* Returns the value as a Java array.
* A subset of the array is returned, starting from the index (1 meaning the first element)
* and up to the given object count.
* This method always returns an Object[].
*
* @param index the start index of the subset (starting with 1)
* @param count the maximum number of values
* @return the Object array
*/
public
Object
getArray
(
long
index
,
int
count
)
throws
SQLException
{
try
{
debugCode
(
"getArray("
+
index
+
", "
+
count
+
");"
);
checkClosed
();
return
get
(
index
,
count
);
}
catch
(
Throwable
e
)
{
throw
logAndConvert
(
e
);
}
}
/**
* Returns the value as a Java array.
* A subset of the array is returned, starting from the index (1 meaning the first element)
* and up to the given object count.
* This method always returns an Object[].
*
* @param index the start index of the subset (starting with 1)
* @param count the maximum number of values
* @param map is ignored. Only empty or null maps are supported
* @return the Object array
*/
public
Object
getArray
(
long
index
,
int
count
,
Map
map
)
throws
SQLException
{
try
{
debugCode
(
"getArray("
+
index
+
", "
+
count
+
", "
+
quoteMap
(
map
)+
");"
);
checkClosed
();
checkMap
(
map
);
return
get
(
index
,
count
);
}
catch
(
Throwable
e
)
{
throw
logAndConvert
(
e
);
}
}
/**
* Returns the base type of the array.
* This database does support mixed type arrays and therefore there is no base type.
*
* @return Types.NULL
*/
public
int
getBaseType
()
throws
SQLException
{
try
{
debugCodeCall
(
"getBaseType"
);
checkClosed
();
return
Types
.
NULL
;
}
catch
(
Throwable
e
)
{
throw
logAndConvert
(
e
);
}
}
/**
* Returns the base type name of the array.
* This database does support mixed type arrays and therefore there is no base type.
*
* @return "NULL"
*/
public
String
getBaseTypeName
()
throws
SQLException
{
try
{
debugCodeCall
(
"getBaseTypeName"
);
checkClosed
();
return
"NULL"
;
}
catch
(
Throwable
e
)
{
throw
logAndConvert
(
e
);
}
}
/**
* Returns the value as a result set.
* The first column contains the index (starting with 1) and the second column the value.
*
* @return the result set
*/
public
ResultSet
getResultSet
()
throws
SQLException
{
try
{
debugCodeCall
(
"getResultSet"
);
checkClosed
();
return
getResultSet
(
get
(),
0
);
}
catch
(
Throwable
e
)
{
throw
logAndConvert
(
e
);
}
}
/**
* Returns the value as a result set.
* The first column contains the index (starting with 1) and the second column the value.
*
* @param map is ignored. Only empty or null maps are supported
* @return the result set
*/
public
ResultSet
getResultSet
(
Map
map
)
throws
SQLException
{
try
{
debugCode
(
"getResultSet("
+
quoteMap
(
map
)+
");"
);
checkClosed
();
checkMap
(
map
);
return
getResultSet
(
get
(),
0
);
}
catch
(
Throwable
e
)
{
throw
logAndConvert
(
e
);
}
}
/**
* Returns the value as a result set.
* The first column contains the index (starting with 1) and the second column the value.
* A subset of the array is returned, starting from the index (1 meaning the first element)
* and up to the given object count.
*
* @param index the start index of the subset (starting with 1)
* @param count the maximum number of values
* @return the result set
*/
public
ResultSet
getResultSet
(
long
index
,
int
count
)
throws
SQLException
{
try
{
debugCode
(
"getResultSet("
+
index
+
", "
+
count
+
");"
);
checkClosed
();
return
getResultSet
(
get
(
index
,
count
),
index
);
}
catch
(
Throwable
e
)
{
throw
logAndConvert
(
e
);
}
}
/**
* Returns the value as a result set.
* The first column contains the index (starting with 1) and the second column the value.
* A subset of the array is returned, starting from the index (1 meaning the first element)
* and up to the given object count.
*
* @param index the start index of the subset (starting with 1)
* @param count the maximum number of values
* @param map is ignored. Only empty or null maps are supported
* @return the result set
*/
public
ResultSet
getResultSet
(
long
index
,
int
count
,
Map
map
)
throws
SQLException
{
try
{
debugCode
(
"getResultSet("
+
index
+
", "
+
count
+
", "
+
quoteMap
(
map
)+
");"
);
checkClosed
();
checkMap
(
map
);
return
getResultSet
(
get
(
index
,
count
),
index
);
}
catch
(
Throwable
e
)
{
throw
logAndConvert
(
e
);
}
}
/**
* Release all resources of this object.
*/
public
void
free
()
throws
SQLException
{
debugCodeCall
(
"free"
);
value
=
null
;
}
private
ResultSet
getResultSet
(
Object
[]
array
,
long
offset
)
throws
SQLException
{
SimpleResultSet
rs
=
new
SimpleResultSet
();
rs
.
addColumn
(
"INDEX"
,
Types
.
BIGINT
,
0
,
0
);
// TODO array result set: there are multiple data types possible
rs
.
addColumn
(
"VALUE"
,
Types
.
NULL
,
0
,
0
);
for
(
int
i
=
0
;
i
<
array
.
length
;
i
++)
{
Object
[]
row
=
new
Object
[
2
];
row
[
0
]
=
new
Long
(
offset
+
i
+
1
);
row
[
1
]
=
array
[
i
];
rs
.
addRow
(
row
);
}
return
rs
;
}
private
void
checkClosed
()
throws
SQLException
{
conn
.
checkClosed
();
if
(
value
==
null
)
{
throw
Message
.
getSQLException
(
Message
.
OBJECT_CLOSED
);
}
}
private
Object
[]
get
()
throws
SQLException
{
return
(
Object
[])
value
.
convertTo
(
Value
.
ARRAY
).
getObject
();
}
private
Object
[]
get
(
long
index
,
int
count
)
throws
SQLException
{
Object
[]
array
=
get
();
if
(
count
<
0
||
count
>
array
.
length
)
{
throw
Message
.
getInvalidValueException
(
""
+
count
,
"count (1.."
+
array
.
length
+
")"
);
}
if
(
index
<
1
||
index
>
array
.
length
)
{
throw
Message
.
getInvalidValueException
(
""
+
index
,
"index (1.."
+
array
.
length
+
")"
);
}
Object
[]
subset
=
new
Object
[
count
];
System
.
arraycopy
(
array
,
(
int
)(
index
-
1
),
subset
,
0
,
count
);
return
subset
;
}
private
void
checkMap
(
Map
map
)
throws
SQLException
{
if
(
map
!=
null
&&
map
.
size
()>
0
)
{
throw
Message
.
getUnsupportedException
();
}
}
}
h2/src/main/org/h2/jdbc/JdbcConnection.java
浏览文件 @
e3d1039b
...
...
@@ -19,7 +19,6 @@ import java.sql.SQLWarning;
import
java.sql.Savepoint
;
//#endif
import
java.sql.Statement
;
import
java.util.Iterator
;
import
java.util.Map
;
import
java.util.Properties
;
...
...
@@ -34,6 +33,7 @@ import org.h2.message.Message;
import
org.h2.message.Trace
;
import
org.h2.message.TraceObject
;
import
org.h2.result.ResultInterface
;
import
org.h2.util.ClassUtils
;
import
org.h2.util.TempFileDeleter
;
import
org.h2.value.Value
;
import
org.h2.value.ValueInt
;
...
...
@@ -655,39 +655,12 @@ public class JdbcConnection extends TraceObject implements Connection {
public
void
setTypeMap
(
Map
map
)
throws
SQLException
{
try
{
debugCode
(
"setTypeMap("
+
quoteMap
(
map
)+
");"
);
if
(
map
!=
null
&&
map
.
size
()>
0
)
{
throw
Message
.
getUnsupportedException
();
}
checkMap
(
map
);
}
catch
(
Throwable
e
)
{
throw
logAndConvert
(
e
);
}
}
private
String
quoteMap
(
Map
map
)
{
if
(
map
==
null
)
{
return
"null"
;
}
if
(
map
.
size
()
==
0
)
{
return
"new Map()"
;
}
StringBuffer
buff
=
new
StringBuffer
(
"new Map() /* "
);
try
{
// Map<String, Class>
for
(
Iterator
it
=
map
.
entrySet
().
iterator
();
it
.
hasNext
();
)
{
Map
.
Entry
entry
=
(
Map
.
Entry
)
it
.
next
();
String
key
=
(
String
)
entry
.
getKey
();
buff
.
append
(
key
);
buff
.
append
(
':'
);
Class
clazz
=
(
Class
)
entry
.
getValue
();
buff
.
append
(
clazz
.
getName
());
}
}
catch
(
Exception
e
)
{
buff
.
append
(
e
.
toString
()+
": "
+
map
.
toString
());
}
buff
.
append
(
"*/"
);
return
buff
.
toString
();
}
/**
* Creates a new callable statement.
*
...
...
@@ -946,7 +919,7 @@ public class JdbcConnection extends TraceObject implements Connection {
if
(
ci
.
isRemote
())
{
session
=
new
SessionRemote
().
createSession
(
ci
);
}
else
{
SessionInterface
si
=
(
SessionInterface
)
Class
.
forName
(
"org.h2.engine.Session"
).
newInstance
();
SessionInterface
si
=
(
SessionInterface
)
Class
Utils
.
loadClass
(
"org.h2.engine.Session"
).
newInstance
();
session
=
si
.
createSession
(
ci
);
}
trace
=
session
.
getTrace
();
...
...
@@ -1456,4 +1429,10 @@ public class JdbcConnection extends TraceObject implements Connection {
return
v
;
}
private
void
checkMap
(
Map
map
)
throws
SQLException
{
if
(
map
!=
null
&&
map
.
size
()>
0
)
{
throw
Message
.
getUnsupportedException
();
}
}
}
h2/src/main/org/h2/jdbc/JdbcResultSet.java
浏览文件 @
e3d1039b
...
...
@@ -1016,24 +1016,38 @@ public class JdbcResultSet extends TraceObject implements ResultSet {
}
/**
* [Not supported] Returns the value of the specified column as a Array.
* Returns the value of the specified column as an Array.
*
* @param columnIndex (1,2,...)
* @return the value
* @throws SQLException if the column is not found or if the result set is closed
*/
public
Array
getArray
(
int
columnIndex
)
throws
SQLException
{
try
{
int
id
=
getNextId
(
TraceObject
.
ARRAY
);
debugCodeAssign
(
"Clob"
,
TraceObject
.
ARRAY
,
id
);
debugCodeCall
(
"getArray"
,
columnIndex
);
throw
Message
.
getUnsupportedException
();
Value
v
=
get
(
columnIndex
);
return
v
==
ValueNull
.
INSTANCE
?
null
:
new
JdbcArray
(
session
,
conn
,
v
,
id
);
}
catch
(
Throwable
e
)
{
throw
logAndConvert
(
e
);
}
}
/**
* [Not supported] Returns the value of the specified column as a Array.
* Returns the value of the specified column as an Array.
*
* @param columnName the name of the column label
* @return the value
* @throws SQLException if the column is not found or if the result set is closed
*/
public
Array
getArray
(
String
columnName
)
throws
SQLException
{
try
{
int
id
=
getNextId
(
TraceObject
.
ARRAY
);
debugCodeAssign
(
"Clob"
,
TraceObject
.
ARRAY
,
id
);
debugCodeCall
(
"getArray"
,
columnName
);
throw
Message
.
getUnsupportedException
();
Value
v
=
get
(
columnName
);
return
v
==
ValueNull
.
INSTANCE
?
null
:
new
JdbcArray
(
session
,
conn
,
v
,
id
);
}
catch
(
Throwable
e
)
{
throw
logAndConvert
(
e
);
}
...
...
h2/src/main/org/h2/jdbc/JdbcSQLException.java
浏览文件 @
e3d1039b
h2/src/main/org/h2/message/TraceObject.java
浏览文件 @
e3d1039b
...
...
@@ -9,6 +9,8 @@ import java.io.IOException;
import
java.io.PrintWriter
;
import
java.math.BigDecimal
;
import
java.sql.SQLException
;
import
java.util.Iterator
;
import
java.util.Map
;
import
org.h2.engine.Constants
;
import
org.h2.util.StringUtils
;
...
...
@@ -18,14 +20,14 @@ public class TraceObject {
PREPARED_STATEMENT
=
3
,
RESULT_SET
=
4
,
RESULT_SET_META_DATA
=
5
,
SAVEPOINT
=
6
,
SQL_EXCEPTION
=
7
,
STATEMENT
=
8
,
BLOB
=
9
,
CLOB
=
10
,
PARAMETER_META_DATA
=
11
;
public
static
final
int
DATA_SOURCE
=
12
,
XA_DATA_SOURCE
=
13
,
XID
=
14
;
public
static
final
int
DATA_SOURCE
=
12
,
XA_DATA_SOURCE
=
13
,
XID
=
14
,
ARRAY
=
15
;
private
static
int
LAST
=
XID
+
1
;
private
static
int
LAST
=
ARRAY
+
1
;
private
Trace
trace
;
private
static
final
int
[]
ID
=
new
int
[
LAST
];
private
static
final
String
[]
PREFIX
=
{
"call"
,
"conn"
,
"dbMeta"
,
"prep"
,
"rs"
,
"rsMeta"
,
"sp"
,
"ex"
,
"stat"
,
"blob"
,
"clob"
,
"pMeta"
,
"ds"
,
"xads"
,
"xid"
"ds"
,
"xads"
,
"xid"
,
"ar"
};
private
int
type
,
id
;
...
...
@@ -151,6 +153,31 @@ public class TraceObject {
return
StringUtils
.
quoteJavaIntArray
(
s
);
}
protected
String
quoteMap
(
Map
map
)
{
if
(
map
==
null
)
{
return
"null"
;
}
if
(
map
.
size
()
==
0
)
{
return
"new Map()"
;
}
StringBuffer
buff
=
new
StringBuffer
(
"new Map() /* "
);
try
{
// Map<String, Class>
for
(
Iterator
it
=
map
.
entrySet
().
iterator
();
it
.
hasNext
();
)
{
Map
.
Entry
entry
=
(
Map
.
Entry
)
it
.
next
();
String
key
=
(
String
)
entry
.
getKey
();
buff
.
append
(
key
);
buff
.
append
(
':'
);
Class
clazz
=
(
Class
)
entry
.
getValue
();
buff
.
append
(
clazz
.
getName
());
}
}
catch
(
Exception
e
)
{
buff
.
append
(
e
.
toString
()+
": "
+
map
.
toString
());
}
buff
.
append
(
"*/"
);
return
buff
.
toString
();
}
protected
SQLException
logAndConvert
(
Throwable
e
)
{
if
(
Constants
.
LOG_ALL_ERRORS
)
{
synchronized
(
this
.
getClass
())
{
...
...
h2/src/main/org/h2/message/TraceSystem.java
浏览文件 @
e3d1039b
...
...
@@ -45,6 +45,7 @@ public class TraceSystem {
private
static
final
int
CHECK_SIZE_EACH_WRITES
=
128
;
private
int
checkSize
;
private
boolean
closed
;
private
boolean
manualEnabling
=
true
;
public
static
void
traceThrowable
(
Throwable
e
)
{
PrintWriter
writer
=
DriverManager
.
getLogWriter
();
...
...
@@ -53,6 +54,10 @@ public class TraceSystem {
}
}
public
void
setManualEnabling
(
boolean
value
)
{
this
.
manualEnabling
=
value
;
}
public
TraceSystem
(
String
fileName
)
{
this
.
fileName
=
fileName
;
traces
=
new
HashMap
();
...
...
@@ -121,6 +126,18 @@ public class TraceSystem {
}
if
(
fileName
!=
null
)
{
if
(
l
>
levelFile
)
{
enableIfRequired
();
}
if
(
l
<=
levelFile
)
{
writeFile
(
format
(
module
,
s
),
t
);
}
}
}
private
void
enableIfRequired
()
{
if
(!
manualEnabling
)
{
return
;
}
long
time
=
System
.
currentTimeMillis
();
if
(
time
>
lastCheck
+
CHECK_FILE_TIME
)
{
String
checkFile
=
fileName
+
Constants
.
SUFFIX_TRACE_START_FILE
;
...
...
@@ -135,11 +152,6 @@ public class TraceSystem {
}
}
}
if
(
l
<=
levelFile
)
{
writeFile
(
format
(
module
,
s
),
t
);
}
}
}
private
synchronized
void
writeFile
(
String
s
,
Throwable
t
)
{
try
{
...
...
h2/src/main/org/h2/res/help.csv
浏览文件 @
e3d1039b
...
...
@@ -44,6 +44,17 @@ Deletes rows form a table.
","
DELETE FROM TEST WHERE ID=2
"
"Commands (DML)","BACKUP","
BACKUP TO fileNameString
","
Backs up the database files to a .zip file.
Objects are not locked.
Admin rights are required to execute this command.
","
BACKUP TO 'backup.zip'
"
"Commands (DML)","CALL","
CALL expression
","
...
...
@@ -353,6 +364,7 @@ name(driverString, urlString,
userString, passwordString, originalTableString)
","
Creates a table link to an external table.
The driver name may be empty if the driver is already loaded.
The current user owner must have admin rights.
","
CREATE LINKED TABLE LINK('org.h2.Driver', 'jdbc:h2:test', 'sa', '', 'TEST')
...
...
@@ -1159,7 +1171,7 @@ A value. Parameters can be indexed, for example ?1 meaning the first parameter.
"
"Other Grammar","Value","
string | hexNumber | int | long | decimal | double |
date | time | timestamp | boolean | bytes | null
date | time | timestamp | boolean | bytes |
array |
null
","
A value of any data type, or null
","
...
...
@@ -1202,7 +1214,7 @@ ID AS VALUE
intType | booleanType | tinyintType | smallintType | bigintType | identityType |
decimalType | doubleType | realType | dateType | timeType | timestampType |
binaryType | otherType | varcharType | varcharIgnorecaseType |
blobType | clobType | uuidType
blobType | clobType | uuidType
| arrayType
","
A data type definition.
","
...
...
@@ -1303,6 +1315,7 @@ A boolean value.
","
TRUE
"
"Other Grammar","Bytes","
X'hex'
","
...
...
@@ -1310,6 +1323,15 @@ A binary value. The hex value is not case sensitive.
","
X'01FF'
"
"Other Grammar","Array","
( expression [,..] )
","
An array of values.
","
(1, 2)
"
"Other Grammar","Null","
NULL
","
...
...
@@ -1507,6 +1529,15 @@ Use PreparedStatement.setBytes or setString to store values.
UUID
"
"Data Types","ARRAY Type","
ARRAY
","
An array of values.
Use a value list (1, 2) or PreparedStatement.setObject(.., new Object[]{..}) to store values.
","
ARRAY
"
"Functions (Aggregate)","AVG","
AVG([DISTINCT] {int | long | decimal | double}): value
","
...
...
@@ -2077,7 +2108,7 @@ REPLACE(NAME, ' ')
SOUNDEX(string): string
","
Returns a four character code representing the sound of a string.
See also http://www.
nara.gov/genealogy/coding
.html.
See also http://www.
archives.gov/genealogy/soundex
.html.
","
SOUNDEX(NAME)
"
...
...
@@ -2323,6 +2354,22 @@ Returns the year from a timestamp.
YEAR(CREATED)
"
"Functions (System)","ARRAY_GET","
ARRAY_GET(arrayExpression, indexExpression): value
","
Returns one element of an array.
","
CALL ARRAY_GET(('Hello', 'World'), 2)
"
"Functions (System)","ARRAY_LENGTH","
ARRAY_GET(arrayExpression): int
","
Returns the length of an array.
","
CALL ARRAY_LENGTH(('Hello', 'World'))
"
"Functions (System)","AUTOCOMMIT","
AUTOCOMMIT(): boolean
","
...
...
@@ -2445,6 +2492,20 @@ Returns the lock timeout of the current session (in milliseconds).
LOCK_TIMEOUT()
"
"Functions (System)","LINK_SCHEMA","
LINK_SCHEMA(targetSchemaString, driverString, urlString,
userString, passwordString, sourceSchemaString): resultSet
","
Creates table links for all tables in a schema.
If tables with the same name already exist, they are dropped first.
The target schema is created automatically if it does not yet exist.
The driver name may be empty if the driver is already loaded.
The list of tables linked is returned.
Admin rights are required to execute this command.
","
CALL LINK_SCHEMA('TEST2', '', 'jdbc:h2:test2', 'sa', 'sa', 'PUBLIC');
"
"Functions (System)","MEMORY_FREE","
MEMORY_FREE(): int
","
...
...
@@ -2519,6 +2580,14 @@ The database engine may re-use a session id after the connection is closed.
CALL SESSION_ID()
"
"Functions (System)","TABLE","
TABLE( { name dataType = expression } [,..]): result set
","
Returns the result set.
","
SELECT * FROM TABLE(ID INT=(1, 2), NAME VARCHAR=('Hello', 'World'))
"
"Functions (System)","USER","
{USER | CURRENT_USER}(): string
","
...
...
h2/src/main/org/h2/result/ResultDiskBuffer.java
浏览文件 @
e3d1039b
...
...
@@ -32,6 +32,7 @@ class ResultDiskBuffer {
rowBuff
=
DataPage
.
create
(
db
,
Constants
.
DEFAULT_DATA_PAGE_SIZE
);
String
fileName
=
session
.
getDatabase
().
createTempFile
();
file
=
session
.
getDatabase
().
openFile
(
fileName
,
false
);
file
.
setCheckedWriting
(
false
);
file
.
autoDelete
();
file
.
seek
(
FileStore
.
HEADER_LENGTH
);
if
(
sort
!=
null
)
{
...
...
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