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Remove NT-specific file open defines by defining our own open macros for

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"rb" and "wb".
This commit is contained in:
Bruce Momjian
2000-06-02 15:57:44 +00:00
parent bf1c8f2b3b
commit cc2b5e5815
28 changed files with 590 additions and 348 deletions
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5
doc/TODO
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@ -1,6 +1,6 @@
TODO list for PostgreSQL
========================
Last updated: Thu May 25 12:08:57 EDT 2000
Last updated: Fri Jun 2 11:32:09 EDT 2000
Current maintainer: Bruce Momjian (pgman@candle.pha.pa.us)
@ -234,6 +234,7 @@ MISC
* Remove ANALYZE from VACUUM so it can be run separately without locks
* Gather more accurate statistics using indexes
* Improve statistics storage in pg_class [performance]
* Improve VACUUM speed with indexes [vacuum]
SOURCE CODE
-----------
@ -241,7 +242,7 @@ SOURCE CODE
* Fix C optimizer problem where fmgr_ptr calls return different types [alpha]
* Does Mariposa source contain any other bug fixes?
* Remove SET KSQO option now that OR processing is improved(Tom)
* Use macros to define NT open() file parameters, remove NT-specific defines
* -Use macros to define NT open() file parameters, remove NT-specific defines
* Change CURRENT to OLD internally for rules
* rename pl/tcl to pl/pltcl

481
doc/TODO.detail/vacuum
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@ -1,19 +1,28 @@
From Inoue@tpf.co.jp Tue Jan 18 19:08:30 2000
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Subject: RE: [HACKERS] Index recreation in vacuum
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> -----Original Message-----
> From: Bruce Momjian [mailto:pgman@candle.pha.pa.us]
>
@ -68,12 +77,35 @@ Hiroshi Inoue
Inoue@tpf.co.jp
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Subject: RE: [HACKERS] Index recreation in vacuum
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>
@ -140,6 +171,25 @@ Inoue@tpf.co.jp
************
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Subject: Re: [HACKERS] Index recreation in vacuum
@ -149,8 +199,11 @@ To: Hiroshi Inoue <Inoue@tpf.co.jp>
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> > > Add a new option to force index recreation in vacuum
> > > and if index recreation is specified.
@ -208,6 +261,9 @@ old copy of the index.
************
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Subject: Re: [HACKERS] Index recreation in vacuum
@ -218,7 +274,10 @@ Date: Tue, 18 Jan 2000 21:04:11 -0500 (EST)
CC: Hiroshi Inoue <Inoue@tpf.co.jp>,
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> > I don't know how people estimate this disadvantage.
>
@ -270,21 +329,30 @@ old index around, but the index is invalid anyway, right?
+ Christ can be your backup. | Drexel Hill, Pennsylvania 19026
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Subject: RE: [HACKERS] Index recreation in vacuum
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> -----Original Message-----
> From: Bruce Momjian [mailto:pgman@candle.pha.pa.us]
>
@ -337,6 +405,25 @@ Inoue@tpf.co.jp
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Subject: Re: [HACKERS] Index recreation in vacuum
@ -346,8 +433,11 @@ To: Hiroshi Inoue <Inoue@tpf.co.jp>
Date: Tue, 18 Jan 2000 21:45:27 -0500 (EST)
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> > > In fact, for REINDEX cases where you don't have a lock on the entire
> > > table as you do in vacuum, you could reindex the table with a simple
@ -398,6 +488,25 @@ of using 2x the disk space. Seems like a big win.
************
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Subject: Re: [HACKERS] Index recreation in vacuum
@ -407,27 +516,72 @@ To: Hiroshi Inoue <Inoue@tpf.co.jp>
Date: Tue, 18 Jan 2000 22:08:25 -0500 (EST)
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> I heard from someone that old vacuum had been like so.
> Probably 2x disk space for big tables was a big disadvantage.
That's interesting.
>
> In addition,rename(),unlink(),mv aren't preferable for transaction
> control as far as I see. We couldn't avoid inconsistency using
> those OS functions.
I disagree. Vacuum can't be rolled back anyway in the sense you can
bring back expire tuples, though I have no idea why you would want to.
You have an exclusive lock on the table. Putting new heap/indexes in
place that match and have no expired tuples seems like it can not fail
in any situation.
Of course, the buffers of the old table have to be marked as invalid,
but with an exclusive lock, that is not a problem. I am sure we do that
anyway<EFBFBD>in vacuum.
> We have to wait the change of relation file naming if copying
> vacuum is needed.
> Under the spec we need not rename(),mv etc.
Sorry, I don't agree, yet...
--
Bruce Momjian | http://www.op.net/~candle
pgman@candle.pha.pa.us | (610) 853-3000
+ If your life is a hard drive, | 830 Blythe Avenue
+ Christ can be your backup. | Drexel Hill, Pennsylvania 19026
************
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To: "Bruce Momjian" <pgman@candle.pha.pa.us>
Cc: "pgsql-hackers" <pgsql-hackers@postgreSQL.org>
Subject: RE: [HACKERS] Index recreation in vacuum
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> -----Original Message-----
> From: Bruce Momjian [mailto:pgman@candle.pha.pa.us]
> > >
@ -471,20 +625,28 @@ Inoue@tpf.co.jp
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Subject: Re: [HACKERS] Index recreation in vacuum
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Hiroshi Inoue wrote:
> > > Yes,I believe so. It's necessary to keep consistency between heap
> > > table and indexes even in case of abort/crash.
@ -522,20 +684,28 @@ dms@wplus.net http://devnull.wplus.net
* there will come soft rains
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Subject: Re: [HACKERS] Index recreation in vacuum
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Bruce Momjian wrote:
>
> We need two things:
@ -554,20 +724,98 @@ Dmitry Samersoff, DM\S
dms@wplus.net http://devnull.wplus.net
* there will come soft rains
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From: Bruce Momjian <pgman@candle.pha.pa.us>
Message-Id: <200001210543.AAA13592@candle.pha.pa.us>
Subject: [HACKERS] vacuum timings
To: Tom Lane <tgl@sss.pgh.pa.us>
Date: Fri, 21 Jan 2000 00:43:49 -0500 (EST)
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I loaded 10,000,000 rows into CREATE TABLE test (x INTEGER); Table is
400MB and index is 160MB.
With index on the single in4 column, I got:
78 seconds for a vacuum
121 seconds for vacuum after deleting a single row
662 seconds for vacuum after deleting the entire table
With no index, I got:
43 seconds for a vacuum
43 seconds for vacuum after deleting a single row
43 seconds for vacuum after deleting the entire table
I find this quite interesting.
--
Bruce Momjian | http://www.op.net/~candle
pgman@candle.pha.pa.us | (610) 853-3000
+ If your life is a hard drive, | 830 Blythe Avenue
+ Christ can be your backup. | Drexel Hill, Pennsylvania 19026
************
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From: Vadim Mikheev <vadim@krs.ru>
Organization: OJSC Rostelecom (Krasnoyarsk)
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To: Bruce Momjian <pgman@candle.pha.pa.us>
CC: Tom Lane <tgl@sss.pgh.pa.us>,
PostgreSQL-development <pgsql-hackers@postgreSQL.org>
Subject: Re: [HACKERS] vacuum timings
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Bruce Momjian wrote:
>
@ -591,6 +839,12 @@ Vadim
************
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@ -598,12 +852,15 @@ From: Vadim Mikheev <vadim@krs.ru>
Organization: OJSC Rostelecom (Krasnoyarsk)
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CC: Tom Lane <tgl@sss.pgh.pa.us>,
PostgreSQL-development <pgsql-hackers@postgreSQL.org>
Subject: Re: [HACKERS] vacuum timings
References: <200001210543.AAA13592@candle.pha.pa.us>
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Bruce Momjian wrote:
>
@ -625,6 +882,12 @@ Wi/wo -F ?
Vadim
From Inoue@tpf.co.jp Fri Jan 21 00:40:35 2000
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From: "Hiroshi Inoue" <Inoue@tpf.co.jp>
To: "Bruce Momjian" <pgman@candle.pha.pa.us>
Cc: "PostgreSQL-development" <pgsql-hackers@postgreSQL.org>,
@ -632,15 +895,18 @@ Cc: "PostgreSQL-development" <pgsql-hackers@postgreSQL.org>,
Subject: RE: [HACKERS] vacuum timings
Date: Fri, 21 Jan 2000 15:46:15 +0900
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> -----Original Message-----
> From: owner-pgsql-hackers@postgreSQL.org
> [mailto:owner-pgsql-hackers@postgreSQL.org]On Behalf Of Bruce Momjian
@ -669,6 +935,25 @@ Hiroshi Inoue
Inoue@tpf.co.jp
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From: Bruce Momjian <pgman@candle.pha.pa.us>
Message-Id: <200001211751.MAA12106@candle.pha.pa.us>
Subject: [HACKERS] Re: vacuum timings
@ -678,8 +963,11 @@ To: Tom Lane <tgl@sss.pgh.pa.us>
Date: Fri, 21 Jan 2000 12:51:53 -0500 (EST)
CC: PostgreSQL-development <pgsql-hackers@postgreSQL.org>
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> Bruce Momjian <pgman@candle.pha.pa.us> writes:
> > I loaded 10,000,000 rows into CREATE TABLE test (x INTEGER); Table is
@ -734,6 +1022,13 @@ What other conclusions can be made?
************
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@ -743,7 +1038,9 @@ cc: Tom Lane <tgl@sss.pgh.pa.us>,
Subject: Re: [HACKERS] Re: vacuum timings
In-Reply-To: <200001211751.MAA12106@candle.pha.pa.us>
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On Fri, 21 Jan 2000, Bruce Momjian wrote:
@ -778,6 +1075,12 @@ primary: scrappy@hub.org secondary: scrappy@{freebsd|postgresql}.org
From tgl@sss.pgh.pa.us Fri Jan 21 13:06:35 2000
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To: Bruce Momjian <pgman@candle.pha.pa.us>
cc: PostgreSQL-development <pgsql-hackers@postgreSQL.org>
Subject: Re: vacuum timings
@ -788,7 +1091,7 @@ Comments: In-reply-to Bruce Momjian <pgman@candle.pha.pa.us>
Date: Fri, 21 Jan 2000 14:06:31 -0500
Message-ID: <16498.948481591@sss.pgh.pa.us>
From: Tom Lane <tgl@sss.pgh.pa.us>
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Bruce Momjian <pgman@candle.pha.pa.us> writes:
> Conclusions:
@ -805,20 +1108,28 @@ fraction of the rows, rather than just the all or none cases.
regards, tom lane
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CC: Bruce Momjian <pgman@candle.pha.pa.us>,
PostgreSQL-development <pgsql-hackers@postgresql.org>
Subject: Re: [HACKERS] Re: vacuum timings
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Tom Lane wrote:
>
> Bruce Momjian <pgman@candle.pha.pa.us> writes:
@ -844,6 +1155,25 @@ dms@wplus.net http://devnull.wplus.net
* there will come soft rains
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From: Bruce Momjian <pgman@candle.pha.pa.us>
Message-Id: <200001211954.OAA15772@candle.pha.pa.us>
Subject: Re: [HACKERS] Re: vacuum timings
@ -854,8 +1184,11 @@ Date: Fri, 21 Jan 2000 14:54:21 -0500 (EST)
CC: Tom Lane <tgl@sss.pgh.pa.us>,
PostgreSQL-development <pgsql-hackers@postgreSQL.org>
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> Tom Lane wrote:
@ -894,6 +1227,13 @@ toying with:
************
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@ -903,7 +1243,9 @@ cc: Dmitry Samersoff <dms@wplus.net>, Tom Lane <tgl@sss.pgh.pa.us>,
Subject: Re: [HACKERS] Re: vacuum timings
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On Fri, 21 Jan 2000, Bruce Momjian wrote:
@ -965,6 +1307,12 @@ primary: scrappy@hub.org secondary: scrappy@{freebsd|postgresql}.org
From tgl@sss.pgh.pa.us Fri Jan 21 16:02:07 2000
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To: The Hermit Hacker <scrappy@hub.org>
cc: Bruce Momjian <pgman@candle.pha.pa.us>,
PostgreSQL-development <pgsql-hackers@postgreSQL.org>
@ -976,7 +1324,7 @@ Comments: In-reply-to The Hermit Hacker <scrappy@hub.org>
Date: Fri, 21 Jan 2000 17:02:06 -0500
Message-ID: <9694.948492126@sss.pgh.pa.us>
From: Tom Lane <tgl@sss.pgh.pa.us>
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The Hermit Hacker <scrappy@hub.org> writes:
>> lock table for less duration, or read lock
@ -1006,6 +1354,12 @@ recipe for deadlocks. Not sure if this can be solved.
regards, tom lane
From tgl@sss.pgh.pa.us Fri Jan 21 22:50:34 2000
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To: Bruce Momjian <pgman@candle.pha.pa.us>
cc: PostgreSQL-development <pgsql-hackers@postgreSQL.org>
Subject: Re: vacuum timings
@ -1016,7 +1370,7 @@ Comments: In-reply-to Bruce Momjian <pgman@candle.pha.pa.us>
Date: Fri, 21 Jan 2000 23:50:13 -0500
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Bruce Momjian <pgman@candle.pha.pa.us> writes:
> Conclusions:
@ -1046,12 +1400,36 @@ into...
regards, tom lane
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From: "Hiroshi Inoue" <Inoue@tpf.co.jp>
To: "Tom Lane" <tgl@sss.pgh.pa.us>, "Bruce Momjian" <pgman@candle.pha.pa.us>
Cc: "PostgreSQL-development" <pgsql-hackers@postgresql.org>
Subject: RE: [HACKERS] Re: vacuum timings
Date: Sat, 22 Jan 2000 17:15:37 +0900
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> -----Original Message-----
> From: owner-pgsql-hackers@postgresql.org
> [mailto:owner-pgsql-hackers@postgresql.org]On Behalf Of Tom Lane
>
> Bruce Momjian <pgman@candle.pha.pa.us> writes:
> > Conclusions:
> > o indexes never get smaller
>
> Which we knew...
>
> > o drop/recreate index is slower than vacuum of indexes
>
> Quite a few people have reported finding the opposite in practice.
> You should probably try vacuuming after deleting or updating some
> fraction of the rows, rather than just the all or none cases.
>
Vacuum after delelting all rows isn't a worst case.
There's no moving in that case and vacuum doesn't need to call
index_insert() corresponding to the moving of heap tuples.
Vacuum after deleting half of rows may be one of the worst case.
In this case,index_delete() is called as many times as 'delete all'
case and expensive index_insert() is called for moved_in tuples.
Regards.
Hiroshi Inoue
Inoue@tpf.co.jp
************
From tgl@sss.pgh.pa.us Sat Jan 22 10:31:02 2000
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To: "Hiroshi Inoue" <Inoue@tpf.co.jp>
cc: "Bruce Momjian" <pgman@candle.pha.pa.us>,
"PostgreSQL-development" <pgsql-hackers@postgreSQL.org>
@ -1075,7 +1490,7 @@ Comments: In-reply-to "Hiroshi Inoue" <Inoue@tpf.co.jp>
Date: Sat, 22 Jan 2000 11:11:25 -0500
Message-ID: <20566.948557485@sss.pgh.pa.us>
From: Tom Lane <tgl@sss.pgh.pa.us>
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"Hiroshi Inoue" <Inoue@tpf.co.jp> writes:
> Vacuum after deleting half of rows may be one of the worst case.

2
doc/src/FAQ.html
View File

@ -7,7 +7,7 @@
Frequently Asked Questions (FAQ) for PostgreSQL
</H1>
<P>
Last updated: Thu Jun 1 13:57:15 EDT 2000
Last updated: Fri Jun 2 11:32:13 EDT 2000
<P>
Current maintainer: Bruce Momjian (<A
HREF="mailto:pgman@candle.pha.pa.us">pgman@candle.pha.pa.us</A>)<BR><P>

4
doc/src/sgml/release.sgml
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@ -1,5 +1,5 @@
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$Header: /cvsroot/pgsql/doc/src/sgml/release.sgml,v 1.52 2000/06/02 01:25:20 momjian Exp $
$Header: /cvsroot/pgsql/doc/src/sgml/release.sgml,v 1.53 2000/06/02 15:57:14 momjian Exp $
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<chapter id="release">
@ -62,6 +62,8 @@ Copy pg_ident.conf.sample into /lib directory in install (Bruce)
Add SJIS UDC (NEC selection IBM kanji) support (Eiji Tokuya)
Fix too long syslog message (Tatsuo)
Fix problem with quoted indexes that are too long (Tom)
JDBC ResultSet.getTimestamp() fix (Gregory Krasnow & Floyd Marinescu)
ecpg changes (Michael)
</programlisting>
</para>
</sect2>