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h2database
Commits
46dc74c4
提交
46dc74c4
authored
1月 21, 2019
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
Use single data type variable in Function.optimize()
上级
4b88dc6d
显示空白字符变更
内嵌
并排
正在显示
3 个修改的文件
包含
65 行增加
和
139 行删除
+65
-139
Function.java
h2/src/main/org/h2/expression/function/Function.java
+57
-138
TypeInfo.java
h2/src/main/org/h2/value/TypeInfo.java
+7
-0
dictionary.txt
h2/src/tools/org/h2/build/doc/dictionary.txt
+1
-1
没有找到文件。
h2/src/main/org/h2/expression/function/Function.java
浏览文件 @
46dc74c4
...
...
@@ -60,7 +60,6 @@ import org.h2.util.JdbcUtils;
import
org.h2.util.MathUtils
;
import
org.h2.util.StringUtils
;
import
org.h2.util.Utils
;
import
org.h2.value.DataType
;
import
org.h2.value.TypeInfo
;
import
org.h2.value.Value
;
import
org.h2.value.ValueArray
;
...
...
@@ -2308,20 +2307,16 @@ public class Function extends Expression implements FunctionCall {
allConst
=
false
;
}
}
int
t
,
s
;
long
p
;
TypeInfo
typeInfo
;
Expression
p0
=
args
.
length
<
1
?
null
:
args
[
0
];
switch
(
info
.
type
)
{
case
DATE_ADD:
{
t
=
Value
.
TIMESTAMP
;
p
=
ValueTimestamp
.
DEFAULT_PRECISION
;
s
=
ValueTimestamp
.
MAXIMUM_SCALE
;
typeInfo
=
TypeInfo
.
TYPE_TIMESTAMP
;
if
(
p0
.
isConstant
())
{
Expression
p2
=
args
[
2
];
switch
(
p2
.
getType
().
getValueType
())
{
case
Value
.
TIME
:
t
=
Value
.
TIME
;
p
=
ValueTime
.
DEFAULT_PRECISION
;
typeInfo
=
TypeInfo
.
TYPE_TIME
;
break
;
case
Value
.
DATE
:
{
int
field
=
DateTimeFunctions
.
getDatePart
(
p0
.
getValue
(
session
).
getString
());
...
...
@@ -2336,74 +2331,55 @@ public class Function extends Expression implements FunctionCall {
// TIMESTAMP result
break
;
default
:
t
=
Value
.
DATE
;
p
=
ValueDate
.
PRECISION
;
s
=
0
;
type
=
TypeInfo
.
TYPE_DATE
;
}
break
;
}
case
Value
.
TIMESTAMP_TZ
:
t
=
Value
.
TIMESTAMP_TZ
;
p
=
ValueTimestampTimeZone
.
DEFAULT_PRECISION
;
type
=
TypeInfo
.
TYPE_TIMESTAMP_TZ
;
}
}
break
;
}
case
EXTRACT:
{
if
(
p0
.
isConstant
()
&&
DateTimeFunctions
.
getDatePart
(
p0
.
getValue
(
session
).
getString
())
==
Function
.
EPOCH
)
{
t
=
Value
.
DECIMAL
;
p
=
ValueLong
.
PRECISION
+
ValueTimestamp
.
MAXIMUM_SCALE
;
s
=
ValueTimestamp
.
MAXIMUM_SCALE
;
typeInfo
=
TypeInfo
.
getTypeInfo
(
Value
.
DECIMAL
,
ValueLong
.
PRECISION
+
ValueTimestamp
.
MAXIMUM_SCALE
,
ValueTimestamp
.
MAXIMUM_SCALE
,
null
);
}
else
{
t
=
Value
.
INT
;
p
=
ValueInt
.
PRECISION
;
s
=
0
;
typeInfo
=
TypeInfo
.
TYPE_INT
;
}
break
;
}
case
DATE_TRUNC:
{
Expression
p1
=
args
[
1
];
t
=
p1
.
getType
().
getValueType
();
if
(
t
==
Value
.
TIMESTAMP_TZ
)
{
p
=
ValueTimestampTimeZone
.
DEFAULT_PRECISION
;
}
else
{
t
=
Value
.
TIMESTAMP
;
p
=
ValueTimestamp
.
DEFAULT_PRECISION
;
case
DATE_TRUNC:
typeInfo
=
args
[
1
].
getType
();
// TODO set scale when possible
if
(
typeInfo
.
getValueType
()
!=
Value
.
TIMESTAMP_TZ
)
{
typeInfo
=
TypeInfo
.
TYPE_TIMESTAMP
;
}
s
=
ValueTimestamp
.
MAXIMUM_SCALE
;
break
;
}
case
IFNULL:
case
NULLIF:
case
COALESCE:
case
LEAST:
case
GREATEST:
{
t
=
Value
.
UNKNOWN
;
s
=
0
;
p
=
0
;
typeInfo
=
TypeInfo
.
TYPE_UNKNOWN
;
for
(
Expression
e
:
args
)
{
if
(
e
!=
ValueExpression
.
getNull
())
{
TypeInfo
type
=
e
.
getType
();
int
valueType
=
type
.
getValueType
();
if
(
valueType
!=
Value
.
UNKNOWN
&&
valueType
!=
Value
.
NULL
)
{
t
=
Value
.
getHigherOrder
(
t
,
valueType
);
s
=
Math
.
max
(
s
,
type
.
getScale
());
p
=
Math
.
max
(
p
,
type
.
getPrecision
());
typeInfo
=
Value
.
getHigherType
(
typeInfo
,
type
);
}
}
}
if
(
t
==
Value
.
UNKNOWN
)
{
t
=
Value
.
STRING
;
s
=
0
;
p
=
Integer
.
MAX_VALUE
;
if
(
typeInfo
.
getValueType
()
==
Value
.
UNKNOWN
)
{
typeInfo
=
TypeInfo
.
TYPE_STRING_DEFAULT
;
}
break
;
}
case
CASE:
case
DECODE:
{
t
=
Value
.
UNKNOWN
;
s
=
0
;
p
=
0
;
typeInfo
=
TypeInfo
.
TYPE_UNKNOWN
;
// (expr, when, then)
// (expr, when, then, else)
// (expr, when, then, when, then)
...
...
@@ -2414,9 +2390,7 @@ public class Function extends Expression implements FunctionCall {
TypeInfo
type
=
then
.
getType
();
int
valueType
=
type
.
getValueType
();
if
(
valueType
!=
Value
.
UNKNOWN
&&
valueType
!=
Value
.
NULL
)
{
t
=
Value
.
getHigherOrder
(
t
,
valueType
);
s
=
Math
.
max
(
s
,
type
.
getScale
());
p
=
Math
.
max
(
p
,
type
.
getPrecision
());
typeInfo
=
Value
.
getHigherType
(
typeInfo
,
type
);
}
}
}
...
...
@@ -2426,26 +2400,18 @@ public class Function extends Expression implements FunctionCall {
TypeInfo
type
=
elsePart
.
getType
();
int
valueType
=
type
.
getValueType
();
if
(
valueType
!=
Value
.
UNKNOWN
&&
valueType
!=
Value
.
NULL
)
{
t
=
Value
.
getHigherOrder
(
t
,
valueType
);
s
=
Math
.
max
(
s
,
type
.
getScale
());
p
=
Math
.
max
(
p
,
type
.
getPrecision
());
typeInfo
=
Value
.
getHigherType
(
typeInfo
,
type
);
}
}
}
if
(
t
==
Value
.
UNKNOWN
)
{
t
=
Value
.
STRING
;
s
=
0
;
p
=
Integer
.
MAX_VALUE
;
if
(
typeInfo
.
getValueType
()
==
Value
.
UNKNOWN
)
{
typeInfo
=
TypeInfo
.
TYPE_STRING_DEFAULT
;
}
break
;
}
case
CASEWHEN:
{
TypeInfo
t1
=
args
[
1
].
getType
(),
t2
=
args
[
2
].
getType
();
t
=
Value
.
getHigherOrder
(
t1
.
getValueType
(),
t2
.
getValueType
());
p
=
Math
.
max
(
t1
.
getPrecision
(),
t2
.
getPrecision
());
s
=
Math
.
max
(
t1
.
getScale
(),
t2
.
getScale
());
case
CASEWHEN:
typeInfo
=
Value
.
getHigherType
(
args
[
1
].
getType
(),
args
[
2
].
getType
());
break
;
}
case
NVL2:
{
TypeInfo
t1
=
args
[
1
].
getType
(),
t2
=
args
[
2
].
getType
();
switch
(
t1
.
getValueType
())
{
...
...
@@ -2453,14 +2419,12 @@ public class Function extends Expression implements FunctionCall {
case
Value
.
CLOB
:
case
Value
.
STRING_FIXED
:
case
Value
.
STRING_IGNORECASE
:
t
=
t1
.
getValueType
(
);
t
ypeInfo
=
TypeInfo
.
getTypeInfo
(
t1
.
getValueType
(),
-
1
,
0
,
null
);
break
;
default
:
t
=
Value
.
getHigherOrder
(
t1
.
getValueType
(),
t2
.
getValueType
()
);
t
ypeInfo
=
Value
.
getHigherType
(
t1
,
t2
);
break
;
}
p
=
Math
.
max
(
t1
.
getPrecision
(),
t2
.
getPrecision
());
s
=
Math
.
max
(
t1
.
getScale
(),
t2
.
getScale
());
break
;
}
case
CAST:
...
...
@@ -2468,12 +2432,9 @@ public class Function extends Expression implements FunctionCall {
case
TRUNCATE_VALUE:
if
(
type
!=
null
)
{
// data type, precision and scale is already set
t
=
type
.
getValueType
();
p
=
type
.
getPrecision
();
s
=
type
.
getScale
();
typeInfo
=
type
;
}
else
{
t
=
Value
.
UNKNOWN
;
p
=
s
=
0
;
typeInfo
=
TypeInfo
.
TYPE_UNKNOWN
;
}
break
;
case
TRUNCATE:
...
...
@@ -2481,61 +2442,43 @@ public class Function extends Expression implements FunctionCall {
case
Value
.
STRING
:
case
Value
.
DATE
:
case
Value
.
TIMESTAMP
:
t
=
Value
.
TIMESTAMP
;
p
=
ValueTimestamp
.
DEFAULT_PRECISION
;
s
=
0
;
typeInfo
=
TypeInfo
.
getTypeInfo
(
Value
.
TIMESTAMP
,
-
1
,
0
,
null
);
break
;
case
Value
.
TIMESTAMP_TZ
:
t
=
Value
.
TIMESTAMP
;
p
=
ValueTimestampTimeZone
.
DEFAULT_PRECISION
;
s
=
0
;
typeInfo
=
TypeInfo
.
getTypeInfo
(
Value
.
TIMESTAMP_TZ
,
-
1
,
0
,
null
);
break
;
default
:
t
=
Value
.
DOUBLE
;
s
=
0
;
p
=
ValueDouble
.
PRECISION
;
typeInfo
=
TypeInfo
.
TYPE_DOUBLE
;
}
break
;
case
ABS:
case
FLOOR:
case
ROUND:
{
TypeInfo
type
=
p0
.
getType
();
t
=
type
.
getValueType
();
s
=
type
.
getScale
();
p
=
type
.
getPrecision
();
if
(
t
==
Value
.
NULL
)
{
t
=
Value
.
INT
;
p
=
ValueInt
.
PRECISION
;
s
=
0
;
typeInfo
=
type
;
if
(
typeInfo
.
getValueType
()
==
Value
.
NULL
)
{
typeInfo
=
TypeInfo
.
TYPE_INT
;
}
break
;
}
case
SET:
{
TypeInfo
type
=
args
[
1
].
getType
();
t
=
type
.
getValueType
();
p
=
type
.
getPrecision
();
s
=
type
.
getScale
();
case
SET:
typeInfo
=
args
[
1
].
getType
();
if
(!(
p0
instanceof
Variable
))
{
throw
DbException
.
get
(
ErrorCode
.
CAN_ONLY_ASSIGN_TO_VARIABLE_1
,
p0
.
getSQL
());
}
break
;
}
case
FILE_READ:
{
if
(
args
.
length
==
1
)
{
t
=
Value
.
BLOB
;
t
ypeInfo
=
TypeInfo
.
getTypeInfo
(
Value
.
BLOB
,
Integer
.
MAX_VALUE
,
0
,
null
)
;
}
else
{
t
=
Value
.
CLOB
;
t
ypeInfo
=
TypeInfo
.
getTypeInfo
(
Value
.
CLOB
,
Integer
.
MAX_VALUE
,
0
,
null
)
;
}
p
=
Integer
.
MAX_VALUE
;
s
=
0
;
break
;
}
case
SUBSTRING:
case
SUBSTR:
{
t
=
info
.
returnDataType
;
p
=
args
[
0
].
getType
().
getPrecision
();
s
=
0
;
long
p
=
args
[
0
].
getType
().
getPrecision
();
if
(
args
[
1
].
isConstant
())
{
// if only two arguments are used,
// subtract offset from first argument length
...
...
@@ -2546,32 +2489,21 @@ public class Function extends Expression implements FunctionCall {
p
=
Math
.
min
(
p
,
args
[
2
].
getValue
(
session
).
getLong
());
}
p
=
Math
.
max
(
0
,
p
);
typeInfo
=
TypeInfo
.
getTypeInfo
(
info
.
returnDataType
,
p
,
0
,
null
);
break
;
}
case
ENCRYPT:
case
DECRYPT:
{
t
=
info
.
returnDataType
;
TypeInfo
type
=
args
[
2
].
getType
();
p
=
type
.
getPrecision
();
s
=
0
;
case
DECRYPT:
typeInfo
=
TypeInfo
.
getTypeInfo
(
info
.
returnDataType
,
args
[
2
].
getType
().
getPrecision
(),
0
,
null
);
break
;
}
case
COMPRESS:
{
t
=
info
.
returnDataType
;
TypeInfo
type
=
args
[
0
].
getType
();
p
=
type
.
getPrecision
();
s
=
0
;
case
COMPRESS:
typeInfo
=
TypeInfo
.
getTypeInfo
(
info
.
returnDataType
,
args
[
0
].
getType
().
getPrecision
(),
0
,
null
);
break
;
}
case
CHAR:
t
=
info
.
returnDataType
;
p
=
1
;
s
=
0
;
typeInfo
=
TypeInfo
.
getTypeInfo
(
info
.
returnDataType
,
1
,
0
,
null
);
break
;
case
CONCAT:
t
=
info
.
returnDataType
;
p
=
0
;
s
=
0
;
case
CONCAT:
{
long
p
=
0
;
for
(
Expression
e
:
args
)
{
TypeInfo
type
=
e
.
getType
();
p
+=
type
.
getPrecision
();
...
...
@@ -2579,11 +2511,11 @@ public class Function extends Expression implements FunctionCall {
p
=
Long
.
MAX_VALUE
;
}
}
typeInfo
=
TypeInfo
.
getTypeInfo
(
info
.
returnDataType
,
p
,
0
,
null
);
break
;
}
case
HEXTORAW:
t
=
info
.
returnDataType
;
p
=
(
args
[
0
].
getType
().
getPrecision
()
+
3
)
/
4
;
s
=
0
;
typeInfo
=
TypeInfo
.
getTypeInfo
(
info
.
returnDataType
,
(
args
[
0
].
getType
().
getPrecision
()
+
3
)
/
4
,
0
,
null
);
break
;
case
LCASE:
case
LTRIM:
...
...
@@ -2594,37 +2526,24 @@ public class Function extends Expression implements FunctionCall {
case
UPPER:
case
TRIM:
case
STRINGDECODE:
case
UTF8TOSTRING:
{
t
=
info
.
returnDataType
;
TypeInfo
type
=
args
[
0
].
getType
();
p
=
type
.
getPrecision
();
s
=
0
;
case
UTF8TOSTRING:
typeInfo
=
TypeInfo
.
getTypeInfo
(
info
.
returnDataType
,
args
[
0
].
getType
().
getPrecision
(),
0
,
null
);
break
;
}
case
RAWTOHEX:
t
=
info
.
returnDataType
;
p
=
args
[
0
].
getType
().
getPrecision
()
*
4
;
s
=
0
;
typeInfo
=
TypeInfo
.
getTypeInfo
(
info
.
returnDataType
,
args
[
0
].
getType
().
getPrecision
()
*
4
,
0
,
null
);
break
;
case
SOUNDEX:
t
=
info
.
returnDataType
;
p
=
4
;
s
=
0
;
typeInfo
=
TypeInfo
.
getTypeInfo
(
info
.
returnDataType
,
4
,
0
,
null
);
break
;
case
DAY_NAME:
case
MONTH_NAME:
t
=
info
.
returnDataType
;
// day and month names may be long in some languages
p
=
20
;
s
=
0
;
typeInfo
=
TypeInfo
.
getTypeInfo
(
info
.
returnDataType
,
20
,
0
,
null
);
break
;
default
:
t
=
info
.
returnDataType
;
DataType
type
=
DataType
.
getDataType
(
t
);
p
=
type
.
maxPrecision
;
s
=
type
.
defaultScale
;
typeInfo
=
TypeInfo
.
getTypeInfo
(
info
.
returnDataType
,
-
1
,
-
1
,
null
);
}
type
=
TypeInfo
.
getTypeInfo
(
t
,
p
,
s
,
type
!=
null
?
type
.
getExtTypeInfo
()
:
null
)
;
type
=
typeInfo
;
if
(
allConst
)
{
Value
v
=
getValue
(
session
);
if
(
v
==
ValueNull
.
INSTANCE
)
{
...
...
h2/src/main/org/h2/value/TypeInfo.java
浏览文件 @
46dc74c4
...
...
@@ -287,8 +287,15 @@ public class TypeInfo {
//$FALL-THROUGH$
case
Value
.
STRING_FIXED
:
case
Value
.
STRING_IGNORECASE
:
if
(
precision
<
0
)
{
precision
=
Integer
.
MAX_VALUE
;
}
return
new
TypeInfo
(
type
,
precision
,
0
,
MathUtils
.
convertLongToInt
(
precision
),
null
);
case
Value
.
BLOB
:
case
Value
.
CLOB
:
if
(
precision
<
0
)
{
precision
=
Long
.
MAX_VALUE
;
}
return
new
TypeInfo
(
type
,
precision
,
0
,
MathUtils
.
convertLongToInt
(
precision
),
null
);
case
Value
.
GEOMETRY
:
if
(
extTypeInfo
instanceof
ExtTypeInfoGeometry
)
{
...
...
h2/src/tools/org/h2/build/doc/dictionary.txt
浏览文件 @
46dc74c4
...
...
@@ -806,4 +806,4 @@ econd irst bcef ordinality nord unnest
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preserves masking holder unboxing avert iae transformed subtle reevaluate exclusions subclause ftbl rgr
presorted inclusion contexts
presorted inclusion contexts
aax
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