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体验新版 GitCode,发现更多精彩内容 >>
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f78739c1
编写于
5月 18, 2019
作者:
A
Andrew Khitrin
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电子邮件补丁
差异文件
5878 Constraint cache optimization
上级
38621508
变更
1
隐藏空白更改
内联
并排
Showing
1 changed file
with
88 addition
and
22 deletion
+88
-22
plugins/org.jkiss.dbeaver.ext.oracle/src/org/jkiss/dbeaver/ext/oracle/model/OracleSchema.java
.../src/org/jkiss/dbeaver/ext/oracle/model/OracleSchema.java
+88
-22
未找到文件。
plugins/org.jkiss.dbeaver.ext.oracle/src/org/jkiss/dbeaver/ext/oracle/model/OracleSchema.java
浏览文件 @
f78739c1
...
...
@@ -499,7 +499,7 @@ public class OracleSchema extends OracleGlobalObject implements DBSSchema, DBPRe
}
/**
*
Index
cache implementation
*
Constraint
cache implementation
*/
class
ConstraintCache
extends
JDBCCompositeCache
<
OracleSchema
,
OracleTableBase
,
OracleTableConstraint
,
OracleTableConstraintColumn
>
{
ConstraintCache
()
...
...
@@ -513,22 +513,61 @@ public class OracleSchema extends OracleGlobalObject implements DBSSchema, DBPRe
throws
SQLException
{
StringBuilder
sql
=
new
StringBuilder
(
500
);
sql
.
append
(
"SELECT "
).
append
(
OracleUtils
.
getSysCatalogHint
(
owner
.
getDataSource
())).
append
(
"\n"
+
"c.TABLE_NAME, c.CONSTRAINT_NAME,c.CONSTRAINT_TYPE,c.STATUS,c.SEARCH_CONDITION,"
+
"col.COLUMN_NAME,col.POSITION\n"
+
"FROM "
+
OracleUtils
.
getAdminAllViewPrefix
(
session
.
getProgressMonitor
(),
getDataSource
(),
"CONSTRAINTS"
)
+
" c, "
+
OracleUtils
.
getAdminAllViewPrefix
(
session
.
getProgressMonitor
(),
getDataSource
(),
"CONS_COLUMNS"
)
+
" col\n"
+
"WHERE c.CONSTRAINT_TYPE<>'R' AND c.OWNER=? AND c.OWNER=col.OWNER AND c.CONSTRAINT_NAME=col.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
)
{
dbStat
.
setString
(
2
,
forTable
.
getName
());
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.SEARCH_CONDITION,\r\n"
+
" (\r\n"
+
" SELECT LTRIM(MAX(SYS_CONNECT_BY_PATH(cname || ':' || NVL(p,1),',')) 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 DBA_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"
+
" ALL_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 "
).
append
(
OracleUtils
.
getSysCatalogHint
(
owner
.
getDataSource
())).
append
(
"\n"
+
"c.TABLE_NAME, c.CONSTRAINT_NAME,c.CONSTRAINT_TYPE,c.STATUS,c.SEARCH_CONDITION,"
+
"col.COLUMN_NAME,col.POSITION\n"
+
"FROM "
+
OracleUtils
.
getAdminAllViewPrefix
(
session
.
getProgressMonitor
(),
getDataSource
(),
"CONSTRAINTS"
)
+
" c, "
+
OracleUtils
.
getAdminAllViewPrefix
(
session
.
getProgressMonitor
(),
getDataSource
(),
"CONS_COLUMNS"
)
+
" col\n"
+
"WHERE c.CONSTRAINT_TYPE<>'R' AND c.OWNER=? AND c.OWNER=col.OWNER AND c.CONSTRAINT_NAME=col.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
;
}
...
...
@@ -548,11 +587,38 @@ public class OracleSchema extends OracleGlobalObject implements DBSSchema, DBPRe
OracleTableBase
parent
,
OracleTableConstraint
object
,
JDBCResultSet
dbResult
)
throws
SQLException
,
DBException
{
final
OracleTableColumn
tableColumn
=
getTableColumn
(
session
,
parent
,
dbResult
,
JDBCUtils
.
safeGetStringTrimmed
(
dbResult
,
"COLUMN_NAME"
));
return
tableColumn
==
null
?
null
:
new
OracleTableConstraintColumn
[]
{
new
OracleTableConstraintColumn
(
object
,
tableColumn
,
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"
));
OracleTableConstraintColumn
[]
result
=
new
OracleTableConstraintColumn
[
positions
.
size
()];
for
(
int
idx
=
0
;
idx
<
positions
.
size
();
idx
++)
{
final
OracleTableColumn
column
=
getTableColumn
(
session
,
parent
,
dbResult
,
positions
.
get
(
idx
).
getColumn
());
if
(
column
==
null
)
{
continue
;
}
result
[
idx
]
=
new
OracleTableConstraintColumn
(
object
,
column
,
positions
.
get
(
idx
).
getPos
());
}
return
result
;
}
else
{
final
OracleTableColumn
tableColumn
=
getTableColumn
(
session
,
parent
,
dbResult
,
JDBCUtils
.
safeGetStringTrimmed
(
dbResult
,
"COLUMN_NAME"
));
return
tableColumn
==
null
?
null
:
new
OracleTableConstraintColumn
[]
{
new
OracleTableConstraintColumn
(
object
,
tableColumn
,
JDBCUtils
.
safeGetInt
(
dbResult
,
"POSITION"
))
};
}
}
@Override
...
...
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