Skip to content
Projects
Groups
Snippets
Help
Loading...
Help
Support
Keyboard shortcuts
?
Submit feedback
Contribute to GitLab
Sign in
Toggle navigation
P
Postgres FD Implementation
Project overview
Project overview
Details
Activity
Releases
Repository
Repository
Files
Commits
Branches
Tags
Contributors
Graph
Compare
Issues
0
Issues
0
List
Boards
Labels
Milestones
Merge Requests
0
Merge Requests
0
CI / CD
CI / CD
Pipelines
Jobs
Schedules
Analytics
Analytics
CI / CD
Repository
Value Stream
Wiki
Wiki
Snippets
Snippets
Members
Members
Collapse sidebar
Close sidebar
Activity
Graph
Create a new issue
Jobs
Commits
Issue Boards
Open sidebar
Abuhujair Javed
Postgres FD Implementation
Commits
13910988
Commit
13910988
authored
Jul 07, 1999
by
Bruce Momjian
Browse files
Options
Browse Files
Download
Email Patches
Plain Diff
Fix misspelling.
parent
ab1b88fd
Changes
3
Hide whitespace changes
Inline
Side-by-side
Showing
3 changed files
with
26 additions
and
16 deletions
+26
-16
doc/TODO
doc/TODO
+13
-3
src/backend/commands/variable.c
src/backend/commands/variable.c
+5
-5
src/backend/optimizer/path/costsize.c
src/backend/optimizer/path/costsize.c
+8
-8
No files found.
doc/TODO
View file @
13910988
...
...
@@ -114,7 +114,7 @@ COMMANDS
* Allow CLUSTER on all tables at once, and improve CLUSTER
* Generate error on CREATE OPERATOR of ~~, ~ and and ~*
* Add SIMILAR TO to allow character classes, 'pg_[a-c]%'
* Auto-destroy sequence on DROP of table with SERIAL
* Auto-destroy sequence on DROP of table with SERIAL
(Ryan)
* Allow LOCK TABLE tab1, tab2, tab3 so all tables locked in unison
* Allow INSERT/UPDATE of system-generated oid value for a row
* Allow ESCAPE '\' at the end of LIKE for ANSI compliance
...
...
@@ -135,7 +135,9 @@ CLIENTS
MISC
* Increase identifier length(NAMEDATALEN) if small performance hit
* Allow row re-use without vacuum, maybe?(Vadim)
* Allow row re-use without vacuum(Vadim)
* Create a background process for each database that runs while
database is idle, finding superceeded rows, gathering stats and vacuuming
* Add UNIQUE capability to non-btree indexes
* Certain indexes will not shrink, i.e. oid indexes with many inserts
* Restore unused oid's on backend exit if no one else has gotten oids
...
...
@@ -143,7 +145,8 @@ MISC
* Allow WHERE restriction on ctid
* Allow cursors to be DECLAREd/OPENed/CLOSEed outside transactions
* Allow PQrequestCancel() to terminate when in waiting-for-lock state
* Transaction log, so re-do log can be on a separate disk
* Transaction log, so re-do log can be on a separate disk by
logging SQL queries, or before/after row images
* Populate backend status area and write program to dump status data
* Make oid use unsigned int more reliably, pg_atoi()
* Allow subqueries in target list
...
...
@@ -177,6 +180,7 @@ INDEXES
* Allow LIMIT ability on single-table queries that have no ORDER BY to use
a matching index
* Improve LIMIT processing by using index to limit rows processed
* Have optimizer take LIMIT into account when considering index scans
CACHE
...
...
@@ -199,6 +203,11 @@ MISC
* Create more system table indexes for faster cache lookups
* Improve Subplan list handling
* Allow Subplans to use efficient joins(hash, merge) with upper variable
* use fmgr_info()/fmgr_faddr() instead of fmgr() calls in high-traffic
places, like GROUP BY, UNIQUE, index processing, etc.
* improve dynamic memory allocation by introducing tuple-context memory
allocation
* add pooled memory allocation where allocations are freed only as a group
SOURCE CODE
...
...
@@ -227,6 +236,7 @@ Developers who have claimed items are:
* Michael is Michael Meskes <meskes@postgresql.org>
* Oleg is Oleg Bartunov <oleg@sai.msu.su>
* Peter is Peter T Mount <peter@retep.org.uk>
* Ryan is Ryan Bradetich <rbrad@hpb50023.boi.hp.com>
* Stefan Simkovics <ssimkovi@rainbow.studorg.tuwien.ac.at>
* Tatsuo is Tatsuo Ishii <t-ishii@sra.co.jp>
* Tom is Tom Lane <tgl@sss.pgh.pa.us>
...
...
src/backend/commands/variable.c
View file @
13910988
...
...
@@ -2,7 +2,7 @@
* Routines for handling of 'SET var TO',
* 'SHOW var' and 'RESET var' statements.
*
* $Id: variable.c,v 1.2
1 1999/06/17 15:15:48
momjian Exp $
* $Id: variable.c,v 1.2
2 1999/07/07 09:11:13
momjian Exp $
*
*/
...
...
@@ -42,7 +42,7 @@ static bool show_XactIsoLevel(void);
static
bool
reset_XactIsoLevel
(
void
);
static
bool
parse_XactIsoLevel
(
const
char
*
);
extern
Cost
_cpu_page_wight_
;
extern
Cost
_cpu_page_w
e
ight_
;
extern
Cost
_cpu_index_page_wight_
;
extern
bool
_use_geqo_
;
extern
int32
_use_geqo_rels_
;
...
...
@@ -246,7 +246,7 @@ parse_cost_heap(const char *value)
}
res
=
float4in
((
char
*
)
value
);
_cpu_page_wight_
=
*
res
;
_cpu_page_w
e
ight_
=
*
res
;
return
TRUE
;
}
...
...
@@ -255,14 +255,14 @@ static bool
show_cost_heap
()
{
elog
(
NOTICE
,
"COST_HEAP is %f"
,
_cpu_page_wight_
);
elog
(
NOTICE
,
"COST_HEAP is %f"
,
_cpu_page_w
e
ight_
);
return
TRUE
;
}
static
bool
reset_cost_heap
()
{
_cpu_page_wight_
=
_CPU_PAGE_WEIGHT_
;
_cpu_page_w
e
ight_
=
_CPU_PAGE_WEIGHT_
;
return
TRUE
;
}
...
...
src/backend/optimizer/path/costsize.c
View file @
13910988
...
...
@@ -7,7 +7,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/optimizer/path/costsize.c,v 1.3
8 1999/05/25 22:41:27
momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/optimizer/path/costsize.c,v 1.3
9 1999/07/07 09:11:15
momjian Exp $
*
*-------------------------------------------------------------------------
*/
...
...
@@ -51,7 +51,7 @@ bool _enable_nestloop_ = true;
bool
_enable_mergejoin_
=
true
;
bool
_enable_hashjoin_
=
true
;
Cost
_cpu_page_wight_
=
_CPU_PAGE_WEIGHT_
;
Cost
_cpu_page_w
e
ight_
=
_CPU_PAGE_WEIGHT_
;
Cost
_cpu_index_page_wight_
=
_CPU_INDEX_PAGE_WEIGHT_
;
/*
...
...
@@ -93,7 +93,7 @@ cost_seqscan(int relid, int relpages, int reltuples)
else
{
temp
+=
relpages
;
temp
+=
_cpu_page_wight_
*
reltuples
;
temp
+=
_cpu_page_w
e
ight_
*
reltuples
;
}
Assert
(
temp
>=
0
);
return
temp
;
...
...
@@ -159,7 +159,7 @@ cost_index(Oid indexid,
temp
+=
_cpu_index_page_wight_
*
selec
*
indextuples
;
/* per heap tuples */
temp
+=
_cpu_page_wight_
*
selec
*
reltuples
;
temp
+=
_cpu_page_w
e
ight_
*
selec
*
reltuples
;
Assert
(
temp
>=
0
);
return
temp
;
...
...
@@ -213,7 +213,7 @@ cost_sort(List *pathkeys, int tuples, int width)
* could be base_log(tuples, NBuffers), but we are only doing 2-way
* merges
*/
temp
+=
_cpu_page_wight_
*
tuples
*
base_log
((
double
)
tuples
,
2
.
0
);
temp
+=
_cpu_page_w
e
ight_
*
tuples
*
base_log
((
double
)
tuples
,
2
.
0
);
Assert
(
temp
>
0
);
...
...
@@ -236,7 +236,7 @@ cost_result(int tuples, int width)
Cost
temp
=
0
;
temp
=
temp
+
page_size
(
tuples
,
width
);
temp
=
temp
+
_cpu_page_wight_
*
tuples
;
temp
=
temp
+
_cpu_page_w
e
ight_
*
tuples
;
Assert
(
temp
>=
0
);
return
temp
;
}
...
...
@@ -310,7 +310,7 @@ cost_mergejoin(Cost outercost,
temp
+=
cost_sort
(
outersortkeys
,
outersize
,
outerwidth
);
if
(
innersortkeys
)
/* do we need to sort? */
temp
+=
cost_sort
(
innersortkeys
,
innersize
,
innerwidth
);
temp
+=
_cpu_page_wight_
*
(
outersize
+
innersize
);
temp
+=
_cpu_page_w
e
ight_
*
(
outersize
+
innersize
);
Assert
(
temp
>=
0
);
...
...
@@ -361,7 +361,7 @@ cost_hashjoin(Cost outercost,
temp
+=
outercost
+
innercost
;
/* cost of computing hash function: must do it once per tuple */
temp
+=
_cpu_page_wight_
*
(
outersize
+
innersize
);
temp
+=
_cpu_page_w
e
ight_
*
(
outersize
+
innersize
);
/* cost of main-memory hashtable */
temp
+=
(
innerpages
<
NBuffers
)
?
innerpages
:
NBuffers
;
...
...
Write
Preview
Markdown
is supported
0%
Try again
or
attach a new file
Attach a file
Cancel
You are about to add
0
people
to the discussion. Proceed with caution.
Finish editing this message first!
Cancel
Please
register
or
sign in
to comment