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体验新版 GitCode,发现更多精彩内容 >>
提交
1b12eb30
编写于
2月 19, 2019
作者:
S
Serge Rider
浏览文件
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差异文件
MySQL plan json format support
Former-commit-id:
acb81a03
上级
47dba223
变更
1
隐藏空白更改
内联
并排
Showing
1 changed file
with
34 addition
and
23 deletion
+34
-23
plugins/org.jkiss.dbeaver.ext.mysql/src/org/jkiss/dbeaver/ext/mysql/model/plan/MySQLPlanNodeJSON.java
...jkiss/dbeaver/ext/mysql/model/plan/MySQLPlanNodeJSON.java
+34
-23
未找到文件。
plugins/org.jkiss.dbeaver.ext.mysql/src/org/jkiss/dbeaver/ext/mysql/model/plan/MySQLPlanNodeJSON.java
浏览文件 @
1b12eb30
...
...
@@ -31,19 +31,6 @@ import java.util.*;
/**
* MySQL execution plan node based on JSON format
*
* Select type:
*
SIMPLE – the query is a simple SELECT query without any subqueries or UNIONs
PRIMARY – the SELECT is in the outermost query in a JOIN
DERIVED – the SELECT is part of a subquery within a FROM clause
SUBQUERY – the first SELECT in a subquery
DEPENDENT SUBQUERY – a subquery which is dependent upon on outer query
UNCACHEABLE SUBQUERY – a subquery which is not cacheable (there are certain conditions for a query to be cacheable)
UNION – the SELECT is the second or later statement of a UNION
DEPENDENT UNION – the second or later SELECT of a UNION is dependent on an outer query
UNION RESULT – the SELECT is a result of a UNION
*/
public
class
MySQLPlanNodeJSON
extends
MySQLPlanNode
implements
DBPPropertySource
{
...
...
@@ -51,7 +38,6 @@ public class MySQLPlanNodeJSON extends MySQLPlanNode implements DBPPropertySourc
private
String
name
;
private
JsonObject
object
;
private
Map
<
String
,
Object
>
nodeProps
=
new
LinkedHashMap
<>();
private
JsonObject
costInfo
;
private
List
<
MySQLPlanNodeJSON
>
nested
;
public
MySQLPlanNodeJSON
(
MySQLPlanNodeJSON
parent
,
String
name
,
JsonObject
object
)
{
...
...
@@ -59,12 +45,22 @@ public class MySQLPlanNodeJSON extends MySQLPlanNode implements DBPPropertySourc
this
.
name
=
name
;
this
.
object
=
object
;
parseObject
(
name
,
object
);
}
private
void
parseObject
(
String
objName
,
JsonObject
object
)
{
for
(
Map
.
Entry
<
String
,
JsonElement
>
prop
:
object
.
entrySet
())
{
String
propName
=
prop
.
getKey
();
JsonElement
value
=
prop
.
getValue
();
if
(
value
instanceof
JsonObject
)
{
if
(
"cost_info"
.
equals
(
propName
))
{
costInfo
=
(
JsonObject
)
value
;
parseObject
(
propName
,
(
JsonObject
)
value
);
}
else
if
(
"query_block"
.
equals
(
propName
))
{
this
.
name
=
"query_block"
;
parseObject
(
propName
,
(
JsonObject
)
value
);
}
else
if
(
"table"
.
equals
(
propName
)
&&
"query_block"
.
equals
(
objName
))
{
this
.
name
=
"table"
;
parseObject
(
propName
,
(
JsonObject
)
value
);
}
else
{
addNested
(
propName
,
(
JsonObject
)
value
);
}
...
...
@@ -87,7 +83,6 @@ public class MySQLPlanNodeJSON extends MySQLPlanNode implements DBPPropertySourc
nodeProps
.
put
(
propName
,
value
.
getAsString
());
}
}
}
private
void
addNested
(
String
name
,
JsonObject
value
)
{
...
...
@@ -116,17 +111,24 @@ public class MySQLPlanNodeJSON extends MySQLPlanNode implements DBPPropertySourc
@Override
public
Number
getNodeCost
()
{
if
(
costInfo
==
null
)
{
return
null
;
}
JsonElement
readCost
=
costInfo
.
get
(
"read_cost"
);
Object
readCost
=
nodeProps
.
get
(
"read_cost"
);
if
(
readCost
==
null
)
{
readCost
=
costInfo
.
get
(
"query_cost"
);
readCost
=
nodeProps
.
get
(
"query_cost"
);
}
if
(
readCost
==
null
)
{
if
(
nested
!=
null
)
{
long
totalCost
=
0
;
for
(
MySQLPlanNodeJSON
child
:
nested
)
{
Number
childCost
=
child
.
getNodeCost
();
if
(
childCost
!=
null
)
{
totalCost
+=
childCost
.
longValue
();
}
}
return
totalCost
;
}
return
null
;
}
return
readCost
.
getAsDouble
(
);
return
CommonUtils
.
toDouble
(
readCost
);
}
@Override
...
...
@@ -143,7 +145,16 @@ public class MySQLPlanNodeJSON extends MySQLPlanNode implements DBPPropertySourc
public
Number
getNodeRowCount
()
{
Object
rowCount
=
nodeProps
.
get
(
"rows_examined_per_scan"
);
if
(
rowCount
==
null
)
{
if
(
nested
!=
null
)
{
long
totalRC
=
0
;
for
(
MySQLPlanNodeJSON
child
:
nested
)
{
Number
childRC
=
child
.
getNodeRowCount
();
if
(
childRC
!=
null
)
{
totalRC
+=
childRC
.
longValue
();
}
}
return
totalRC
;
}
}
return
rowCount
==
null
?
null
:
CommonUtils
.
toLong
(
rowCount
);
}
...
...
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