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体验新版 GitCode,发现更多精彩内容 >>
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4b89126c
编写于
4月 23, 2005
作者:
T
Tom Lane
浏览文件
操作
浏览文件
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电子邮件补丁
差异文件
Fix bogus EXPLAIN display of rowcount estimates for BitmapAnd and
BitmapOr nodes.
上级
bc843d39
变更
1
隐藏空白更改
内联
并排
Showing
1 changed file
with
19 addition
and
15 deletion
+19
-15
src/backend/optimizer/plan/createplan.c
src/backend/optimizer/plan/createplan.c
+19
-15
未找到文件。
src/backend/optimizer/plan/createplan.c
浏览文件 @
4b89126c
...
...
@@ -10,7 +10,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/optimizer/plan/createplan.c,v 1.18
3 2005/04/22 21:58:31
tgl Exp $
* $PostgreSQL: pgsql/src/backend/optimizer/plan/createplan.c,v 1.18
4 2005/04/23 01:29:15
tgl Exp $
*
*-------------------------------------------------------------------------
*/
...
...
@@ -941,7 +941,10 @@ create_bitmap_subplan(Query *root, Path *bitmapqual)
newlist
=
lappend
(
newlist
,
subplan
);
}
plan
=
(
Plan
*
)
make_bitmap_and
(
newlist
);
copy_path_costsize
(
plan
,
bitmapqual
);
plan
->
startup_cost
=
apath
->
path
.
startup_cost
;
plan
->
total_cost
=
apath
->
path
.
total_cost
;
plan
->
plan_rows
=
clamp_row_est
(
apath
->
bitmapselectivity
*
apath
->
path
.
parent
->
tuples
);
plan
->
plan_width
=
0
;
/* meaningless */
}
else
if
(
IsA
(
bitmapqual
,
BitmapOrPath
))
...
...
@@ -957,31 +960,32 @@ create_bitmap_subplan(Query *root, Path *bitmapqual)
newlist
=
lappend
(
newlist
,
subplan
);
}
plan
=
(
Plan
*
)
make_bitmap_or
(
newlist
);
copy_path_costsize
(
plan
,
bitmapqual
);
plan
->
startup_cost
=
opath
->
path
.
startup_cost
;
plan
->
total_cost
=
opath
->
path
.
total_cost
;
plan
->
plan_rows
=
clamp_row_est
(
opath
->
bitmapselectivity
*
opath
->
path
.
parent
->
tuples
);
plan
->
plan_width
=
0
;
/* meaningless */
}
else
if
(
IsA
(
bitmapqual
,
IndexPath
))
{
IndexPath
*
ipath
=
(
IndexPath
*
)
bitmapqual
;
IndexScan
*
iscan
;
BitmapIndexScan
*
bscan
;
/* Use the regular indexscan plan build machinery... */
iscan
=
create_indexscan_plan
(
root
,
ipath
,
NIL
,
NIL
);
Assert
(
list_length
(
iscan
->
indxid
)
==
1
);
/* then convert to a bitmap indexscan */
bscan
=
make_bitmap_indexscan
(
iscan
->
scan
.
scanrelid
,
linitial_oid
(
iscan
->
indxid
),
linitial
(
iscan
->
indxqual
),
linitial
(
iscan
->
indxqualorig
),
linitial
(
iscan
->
indxstrategy
),
linitial
(
iscan
->
indxsubtype
));
bscan
->
scan
.
plan
.
startup_cost
=
0
.
0
;
bscan
->
scan
.
plan
.
total_cost
=
ipath
->
indextotalcost
;
bscan
->
scan
.
plan
.
plan_rows
=
plan
=
(
Plan
*
)
make_bitmap_indexscan
(
iscan
->
scan
.
scanrelid
,
linitial_oid
(
iscan
->
indxid
),
linitial
(
iscan
->
indxqual
),
linitial
(
iscan
->
indxqualorig
),
linitial
(
iscan
->
indxstrategy
),
linitial
(
iscan
->
indxsubtype
));
plan
->
startup_cost
=
0
.
0
;
plan
->
total_cost
=
ipath
->
indextotalcost
;
plan
->
plan_rows
=
clamp_row_est
(
ipath
->
indexselectivity
*
ipath
->
path
.
parent
->
tuples
);
bscan
->
scan
.
plan
.
plan_width
=
0
;
/* meaningless */
plan
=
(
Plan
*
)
bscan
;
plan
->
plan_width
=
0
;
/* meaningless */
}
else
{
...
...
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