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528a0db2
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体验新版 GitCode,发现更多精彩内容 >>
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528a0db2
编写于
5月 17, 2019
作者:
S
Serge Rider
提交者:
GitHub
5月 17, 2019
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差异文件
Merge pull request #5922 from dbeaver/5878_oracle_constraints_lag
5878 Try to fix poor oracle performance on foreign keys
上级
555a3932
38621508
变更
2
隐藏空白更改
内联
并排
Showing
2 changed file
with
159 addition
and
25 deletion
+159
-25
plugins/org.jkiss.dbeaver.ext.oracle/src/org/jkiss/dbeaver/ext/oracle/model/OracleSchema.java
.../src/org/jkiss/dbeaver/ext/oracle/model/OracleSchema.java
+156
-25
plugins/org.jkiss.dbeaver.ext.oracle/src/org/jkiss/dbeaver/ext/oracle/model/OracleTableForeignKey.java
...jkiss/dbeaver/ext/oracle/model/OracleTableForeignKey.java
+3
-0
未找到文件。
plugins/org.jkiss.dbeaver.ext.oracle/src/org/jkiss/dbeaver/ext/oracle/model/OracleSchema.java
浏览文件 @
528a0db2
...
...
@@ -396,9 +396,9 @@ public class OracleSchema extends OracleGlobalObject implements DBSSchema, DBPRe
return
"Schema "
+
name
;
}
private
static
OracleTableColumn
getTableColumn
(
JDBCSession
session
,
OracleTableBase
parent
,
ResultSet
dbResult
)
throws
DBException
private
static
OracleTableColumn
getTableColumn
(
JDBCSession
session
,
OracleTableBase
parent
,
ResultSet
dbResult
,
String
columnName
)
throws
DBException
{
String
columnName
=
JDBCUtils
.
safeGetStringTrimmed
(
dbResult
,
"COLUMN_NAME"
);
OracleTableColumn
tableColumn
=
columnName
==
null
?
null
:
parent
.
getAttribute
(
session
.
getProgressMonitor
(),
columnName
);
if
(
tableColumn
==
null
)
{
log
.
debug
(
"Column '"
+
columnName
+
"' not found in table '"
+
parent
.
getName
()
+
"'"
);
...
...
@@ -548,7 +548,7 @@ public class OracleSchema extends OracleGlobalObject implements DBSSchema, DBPRe
OracleTableBase
parent
,
OracleTableConstraint
object
,
JDBCResultSet
dbResult
)
throws
SQLException
,
DBException
{
final
OracleTableColumn
tableColumn
=
getTableColumn
(
session
,
parent
,
dbResult
);
final
OracleTableColumn
tableColumn
=
getTableColumn
(
session
,
parent
,
dbResult
,
JDBCUtils
.
safeGetStringTrimmed
(
dbResult
,
"COLUMN_NAME"
)
);
return
tableColumn
==
null
?
null
:
new
OracleTableConstraintColumn
[]
{
new
OracleTableConstraintColumn
(
object
,
tableColumn
,
...
...
@@ -561,17 +561,75 @@ public class OracleSchema extends OracleGlobalObject implements DBSSchema, DBPRe
constraint
.
setColumns
(
rows
);
}
}
class
SpecialPosition
{
private
final
String
column
;
private
final
int
pos
;
public
SpecialPosition
(
String
value
)
{
String
data
[]
=
value
.
split
(
":"
);
this
.
column
=
data
[
0
];
this
.
pos
=
Integer
.
valueOf
(
data
[
1
]);
}
public
SpecialPosition
(
String
column
,
int
pos
)
{
this
.
column
=
column
;
this
.
pos
=
pos
;
}
public
String
getColumn
()
{
return
column
;
}
public
int
getPos
()
{
return
pos
;
}
}
private
List
<
SpecialPosition
>
parsePositions
(
String
value
)
{
if
(
value
==
null
)
{
return
Collections
.
emptyList
();
}
if
(
value
.
length
()<
3
)
{
return
Collections
.
emptyList
();
}
List
<
SpecialPosition
>
result
=
new
ArrayList
<>(
1
);
String
data
[]
=
value
.
split
(
","
);
for
(
String
s
:
data
)
{
result
.
add
(
new
SpecialPosition
(
s
));
}
return
result
;
}
class
ForeignKeyCache
extends
JDBCCompositeCache
<
OracleSchema
,
OracleTable
,
OracleTableForeignKey
,
OracleTableForeignKeyColumn
>
{
ForeignKeyCache
()
{
super
(
tableCache
,
OracleTable
.
class
,
"TABLE_NAME"
,
"CONSTRAINT_NAME"
);
}
@Override
protected
void
loadObjects
(
DBRProgressMonitor
monitor
,
OracleSchema
schema
,
OracleTable
forParent
)
throws
DBException
{
// Cache schema constraints if not table specified
if
(
forParent
==
null
)
{
constraintCache
.
getAllObjects
(
monitor
,
schema
);
...
...
@@ -585,24 +643,64 @@ public class OracleSchema extends OracleGlobalObject implements DBSSchema, DBPRe
throws
SQLException
{
StringBuilder
sql
=
new
StringBuilder
(
500
);
sql
.
append
(
"SELECT "
+
OracleUtils
.
getSysCatalogHint
(
owner
.
getDataSource
())
+
" \r\n"
+
"c.TABLE_NAME, c.CONSTRAINT_NAME,c.CONSTRAINT_TYPE,c.STATUS,c.R_OWNER,c.R_CONSTRAINT_NAME,rc.TABLE_NAME as R_TABLE_NAME,c.DELETE_RULE, \n"
+
"col.COLUMN_NAME,col.POSITION\r\n"
+
"FROM "
+
OracleUtils
.
getAdminAllViewPrefix
(
session
.
getProgressMonitor
(),
getDataSource
(),
"CONSTRAINTS"
)
+
" c, "
+
OracleUtils
.
getAdminAllViewPrefix
(
session
.
getProgressMonitor
(),
getDataSource
(),
"CONS_COLUMNS"
)
+
" col, "
+
OracleUtils
.
getAdminAllViewPrefix
(
session
.
getProgressMonitor
(),
getDataSource
(),
"CONSTRAINTS"
)
+
" rc\n"
+
"WHERE c.CONSTRAINT_TYPE='R' AND c.OWNER=?\n"
+
"AND c.OWNER=col.OWNER AND c.CONSTRAINT_NAME=col.CONSTRAINT_NAME\n"
+
"AND rc.OWNER=c.r_OWNER AND rc.CONSTRAINT_NAME=c.R_CONSTRAINT_NAME"
);
if
(
forTable
!=
null
)
{
sql
.
append
(
" AND c.TABLE_NAME=?"
);
}
sql
.
append
(
"\nORDER BY c.CONSTRAINT_NAME,col.POSITION"
);
JDBCPreparedStatement
dbStat
=
session
.
prepareStatement
(
sql
.
toString
());
dbStat
.
setString
(
1
,
OracleSchema
.
this
.
getName
());
if
(
forTable
!=
null
)
{
JDBCPreparedStatement
dbStat
;
if
(
owner
.
getDataSource
().
isAtLeastV10
()
&&
forTable
!=
null
)
{
sql
.
append
(
"SELECT \r\n"
+
" c.TABLE_NAME,\r\n"
+
" c.CONSTRAINT_NAME,\r\n"
+
" c.CONSTRAINT_TYPE,\r\n"
+
" c.STATUS,\r\n"
+
" c.R_OWNER,\r\n"
+
" c.R_CONSTRAINT_NAME,\r\n"
+
" (SELECT rc.TABLE_NAME FROM "
+
OracleUtils
.
getAdminAllViewPrefix
(
session
.
getProgressMonitor
(),
getDataSource
(),
"CONSTRAINTS"
)
+
" rc WHERE rc.OWNER = c.r_OWNER AND rc.CONSTRAINT_NAME = c.R_CONSTRAINT_NAME) AS R_TABLE_NAME,\r\n"
+
" c.DELETE_RULE,\r\n"
+
" (\r\n"
+
" SELECT LTRIM(MAX(SYS_CONNECT_BY_PATH(cname || ':' || p,',')) KEEP (DENSE_RANK LAST ORDER BY curr),',') \r\n"
+
" FROM (SELECT \r\n"
+
" col.CONSTRAINT_NAME cn,col.POSITION p,col.COLUMN_NAME cname,\r\n"
+
" ROW_NUMBER() OVER (PARTITION BY col.CONSTRAINT_NAME ORDER BY col.POSITION) AS curr,\r\n"
+
" ROW_NUMBER() OVER (PARTITION BY col.CONSTRAINT_NAME ORDER BY col.POSITION) -1 AS prev\r\n"
+
" FROM "
+
OracleUtils
.
getAdminAllViewPrefix
(
session
.
getProgressMonitor
(),
getDataSource
(),
"CONS_COLUMNS"
)
+
" col \r\n"
+
" WHERE col.OWNER =? AND col.TABLE_NAME = ? AND col.CONSTRAINT_NAME = c.CONSTRAINT_NAME \r\n"
+
" ) GROUP BY cn CONNECT BY prev = PRIOR curr AND cn = PRIOR cn START WITH curr = 1 \r\n"
+
" ) COLUMN_NAMES_NUMS\r\n"
+
"FROM\r\n"
+
" "
+
OracleUtils
.
getAdminAllViewPrefix
(
session
.
getProgressMonitor
(),
getDataSource
(),
"CONSTRAINTS"
)
+
" c\r\n"
+
"WHERE\r\n"
+
" c.CONSTRAINT_TYPE = 'R'\r\n"
+
" AND c.OWNER = ?\r\n"
+
" AND c.TABLE_NAME = ?"
);
// 1- owner
// 2-table name
// 3-owner
// 4-table name
dbStat
=
session
.
prepareStatement
(
sql
.
toString
());
dbStat
.
setString
(
1
,
OracleSchema
.
this
.
getName
());
dbStat
.
setString
(
2
,
forTable
.
getName
());
dbStat
.
setString
(
3
,
OracleSchema
.
this
.
getName
());
dbStat
.
setString
(
4
,
forTable
.
getName
());
}
else
{
sql
.
append
(
"SELECT "
+
OracleUtils
.
getSysCatalogHint
(
owner
.
getDataSource
())
+
" \r\n"
+
"c.TABLE_NAME, c.CONSTRAINT_NAME,c.CONSTRAINT_TYPE,c.STATUS,c.R_OWNER,c.R_CONSTRAINT_NAME,rc.TABLE_NAME as R_TABLE_NAME,c.DELETE_RULE, \n"
+
"col.COLUMN_NAME,col.POSITION\r\n"
+
"FROM "
+
OracleUtils
.
getAdminAllViewPrefix
(
session
.
getProgressMonitor
(),
getDataSource
(),
"CONSTRAINTS"
)
+
" c, "
+
OracleUtils
.
getAdminAllViewPrefix
(
session
.
getProgressMonitor
(),
getDataSource
(),
"CONS_COLUMNS"
)
+
" col, "
+
OracleUtils
.
getAdminAllViewPrefix
(
session
.
getProgressMonitor
(),
getDataSource
(),
"CONSTRAINTS"
)
+
" rc\n"
+
"WHERE c.CONSTRAINT_TYPE='R' AND c.OWNER=?\n"
+
"AND c.OWNER=col.OWNER AND c.CONSTRAINT_NAME=col.CONSTRAINT_NAME\n"
+
"AND rc.OWNER=c.r_OWNER AND rc.CONSTRAINT_NAME=c.R_CONSTRAINT_NAME"
);
if
(
forTable
!=
null
)
{
sql
.
append
(
" AND c.TABLE_NAME=?"
);
}
sql
.
append
(
"\nORDER BY c.CONSTRAINT_NAME,col.POSITION"
);
dbStat
=
session
.
prepareStatement
(
sql
.
toString
());
dbStat
.
setString
(
1
,
OracleSchema
.
this
.
getName
());
if
(
forTable
!=
null
)
{
dbStat
.
setString
(
2
,
forTable
.
getName
());
}
}
return
dbStat
;
}
...
...
@@ -622,11 +720,44 @@ public class OracleSchema extends OracleGlobalObject implements DBSSchema, DBPRe
OracleTable
parent
,
OracleTableForeignKey
object
,
JDBCResultSet
dbResult
)
throws
SQLException
,
DBException
{
OracleTableColumn
column
=
getTableColumn
(
session
,
parent
,
dbResult
);
return
column
==
null
?
null
:
new
OracleTableForeignKeyColumn
[]
{
new
OracleTableForeignKeyColumn
(
object
,
column
,
JDBCUtils
.
safeGetInt
(
dbResult
,
"POSITION"
))
};
//resultset has field COLUMN_NAMES_NUMS - special query was used
if
(
JDBCUtils
.
safeGetString
(
dbResult
,
"COLUMN_NAMES_NUMS"
)
!=
null
)
{
List
<
SpecialPosition
>
positions
=
parsePositions
(
JDBCUtils
.
safeGetString
(
dbResult
,
"COLUMN_NAMES_NUMS"
));
OracleTableForeignKeyColumn
[]
result
=
new
OracleTableForeignKeyColumn
[
positions
.
size
()];
for
(
int
idx
=
0
;
idx
<
positions
.
size
();
idx
++)
{
OracleTableColumn
column
=
getTableColumn
(
session
,
parent
,
dbResult
,
positions
.
get
(
idx
).
getColumn
());
if
(
column
==
null
)
{
continue
;
}
result
[
idx
]
=
new
OracleTableForeignKeyColumn
(
object
,
column
,
positions
.
get
(
idx
).
getPos
());
}
return
result
;
}
else
{
OracleTableColumn
column
=
getTableColumn
(
session
,
parent
,
dbResult
,
JDBCUtils
.
safeGetStringTrimmed
(
dbResult
,
"COLUMN_NAME"
));
if
(
column
==
null
)
{
return
null
;
}
return
new
OracleTableForeignKeyColumn
[]
{
new
OracleTableForeignKeyColumn
(
object
,
column
,
JDBCUtils
.
safeGetInt
(
dbResult
,
"POSITION"
))
};
}
}
@Override
...
...
plugins/org.jkiss.dbeaver.ext.oracle/src/org/jkiss/dbeaver/ext/oracle/model/OracleTableForeignKey.java
浏览文件 @
528a0db2
...
...
@@ -55,6 +55,9 @@ public class OracleTableForeignKey extends OracleTableConstraintBase implements
this
.
referencedKey
=
referencedKey
;
this
.
deleteRule
=
deleteRule
;
}
public
OracleTableForeignKey
(
DBRProgressMonitor
monitor
,
...
...
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