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Postgres FD Implementation
Commit 870d9641 authored by Bruce Momjian's avatar Bruce Momjian
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Update Russian FAQ. 

Viktor Vislobokov
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Otvety na chasto zadavaemye voprosy po PostgreSQL
Data poslednego obnovleniya: Pyatnica 30 Maya 22:24:56 EDT 2003
Data poslednego obnovleniya: Voskresen'e 5 Oktyabrya 10:25:21 EDT 2003
Anglijskij variant soprovozhdaet: Bryus Mom'yan (Bruce Momjian)
(pgman@candle.pha.pa.us)
......@@ -221,7 +221,8 @@
PostgreSQL, sportirovannyj special'no dlya MS Win NT/2000/XP v
nastoyaschij moment nachal rabotat'. Podrobnosti tekuschego
sostoyaniya PostgreSQL dlya Windows smotrite na
http://techdocs.postgresql.org/guides/Windows.
http://techdocs.postgresql.org/guides/Windows i
http://momjian.postgresql.org/main/writings/pgsql/win32.html.
Takzhe suschestvuet versiya sportirovannaya pod Novell Netware 6 na
http://forge.novell.com.
......@@ -277,13 +278,13 @@
Unix irc -c '#PostgreSQL' "$USER" irc.phoenix.net.
Spisok kommercheskoj podderzhki kompanij dostupen na
http://www.ca.PostgreSQL.org/users-lounge/commercial-support.html.
http://techdocs.postgresql.org/companies.php.
1.7) Kakaya poslednyaya versiya?
Poslednij vypusk PostgreSQL - `eto versiya 7.3.2.
Poslednij vypusk PostgreSQL - `eto versiya 7.3.4.
My planiruem vypuskat' novye versii kazhdye chetyre mesyaca.
My planiruem vypuskat' novye versii kazhdye 6-8 mesyacev.
1.8) Kakaya dokumentaciya imeetsya v nalichii?
......@@ -296,8 +297,8 @@
http://www.PostgreSQL.org/docs/awbook.html i
http://www.commandprompt.com/ppbook/. Spisok knig po PostgreSQL,
kotorye mozhno kupit' dostupen po adresu
http://www.ca.PostgreSQL.org/books/. Krome togo, po adresu
http://techdocs.PostgreSQL.org/ vy mozhete najti kollekciyu
http://techdocs.postgresql.org/techdocs/bookreviews.php. Krome togo,
po adresu http://techdocs.PostgreSQL.org/ vy mozhete najti kollekciyu
tehnicheskih statej posvyaschennyh PostgreSQL.
psql imeet neskol'ko prekrasnyh komand \d dlya otobrazheniya
......@@ -376,15 +377,20 @@
PostgreSQL imeet proizvoditel'nost' shozhuyu s drugimi
kommercheskimi SUBD i s SUBD s otkrytym ishodnym kodom, v
kakih-to aspektah rabotaya bystree chem oni, v kakih-to
medlenee. V sravnenii s MySQL ili linejnymi SUBD, my medlenee
pri operaciyah vstavki/obnovleniya, potomu chto upravlyaem
tranzakciyami. I razumeetsya, MySQL ne imeet kakih-libo
medlenee. V sravnenii s MySQL ili linejnymi SUBD, my bystree,
kogda pol'zovatelej mnogo, a takzhe na kompleksnyh zaprosah i
chtenii/zapisi zagruzki zaprosa. MySQL bystree dlya prostyh
SELECT zaprosov, vypolnyaemyh nebol'shim kolichestvom
pol'zovatelej. I razumeetsya, MySQL ne imeet kakih-libo
vozmozhnostej iz perechislenyh vyshe, v sekcii Vozmozhnosti. My
delaem upor na nadezhnost' i rasshirennye vozmozhnosti, no my
takzhe prodolzhaem uvelichivat' proizvoditel'nost' s kazhdym
vypuskom. Suschestvuet interesnaya stranichka v Internet,
sravnivayuschaya PostgreSQL i MySQL na
http://openacs.org/philosophy/why-not-mysql.html
http://openacs.org/philosophy/why-not-mysql.html. Takzhe, MySQL
- `eto kompaniya, kotoraya rasprostranyaet svoj produkt cherez
otkrytye ishodnye teksty, a ne soobschestvo razrabotchikov s
otkrytymi ishodnymi tekstami, kak PostgreSQL.
Nadezhnost'
My ponimali, chto nasha SUBD dolzhna byt' nadezhnoj ili ona
......@@ -440,6 +446,10 @@
hotite, to mozhete `eto proverit', napisav pis'mo na kontaktnyj adres.
_________________________________________________________________
Esli u vas est' istorii po uspeshnomu primeneniyu PostgreSQL,
pozhalujsta, prisylajte ih na nash sajt propagandy
http://advocacy.postgresql.org.
Voprosy pol'zovatelej po klientskoj chasti
2.1) Suschestvuyut li ODBC drajvera dlya PostgreSQL?
......@@ -753,7 +763,7 @@ dalit'
BEGIN;
ALTER TABLE tab ADD COLUMN new_col new_data_type;
UPDATE tab SET new_col = CAST(old_col AS new_data_type);
ALTER TABLE DROP COLUMN old_col;
ALTER TABLE tab DROP COLUMN old_col;
COMMIT;
4.5) Kakovy maksimal'nye razmery dlya zapisej, tablic i bazy dannyh?
......@@ -761,7 +771,7 @@ dalit'
Suschestvuyut sleduyuschie ogranicheniya:
Maksimal'nyj razmer bazy? neogranichen (suschestvuyut bazy na
4 TB)
Maksimal'nyj razmer tablicy? 16 TB
Maksimal'nyj razmer tablicy? 32 TB
Maksimal'nyj razmer zapisi? 1.6 TB
Maksimal'nyj razmer polya? 1 GB
Maksimal'noe kolichestvo zapisej v tablice? neogranicheno
......@@ -774,14 +784,14 @@ pa
znacheniya perechislennye vyshe neopravdano bol'shie, mozhet
postradat' proizvoditel'nost'.
Maksimal'nyj razmer tablicy v 16 TB ne trebuet chtoby operacionnaya
Maksimal'nyj razmer tablicy v 32 TB ne trebuet chtoby operacionnaya
sistema podderzhivala fajly bol'shih razmerov. Bol'shie tablicy
hranyatsya kak mnozhestvo fajlov razmerom v 1 GB, tak chto
ogranicheniya, kotorye nakladyvaet fajlovaya sistema ne vazhny.
Maksimal'nyj razmer tablicy i maksimal'noe kolichestvo kolonok mogut
byt' uvelicheny, esli razmer bloka po umolchaniyu budet uvelichen do
32k.
byt' uvelicheny v chetyre raza, esli razmer bloka po umolchaniyu budet
uvelichen do 32k.
4.6) Kak mnogo diskovogo prostranstva v baze dannyh nuzhno dlya sohraneniya
dannyh iz obychnogo tekstovogo fajla?
......@@ -1026,9 +1036,10 @@ t' null-bajt bez opaski)
I nakonec, vy mozhete ispol'zovat' znachenie OID, vozraschaemoe iz
opertora INSERT chtoby uvidet' znachenie po umolchaniyu, chto
predpolozhitel'no yavlyaetsya naimenee perenosimym na drugie platformy
resheniem. V Perl, ispol'zuya DBI s modulei Edmund Mergl'ya DBD::Pg,
znachenie oid stanovitsya dostupnym cherez $sth->{pg_oid_status} posle
$sth->execute().
resheniem, k tomu zhe znachenie oid budet urezat'sya, kogda ono
dostignet 4 milliardov. V Perl, ispol'zuya DBI s modulem Edmund
Mergl'ya DBD::Pg, znachenie oid stanovitsya dostupnym cherez
$sth->{pg_oid_status} posle $sth->execute().
4.15.3) Ne mozhet li poluchit'sya tak, chto ispol'zovanie currval() i
nextval() privedet k zaciklirovaniyu s drugimi pol'zovatelyami?
......@@ -1245,8 +1256,14 @@ CREATE TABLE test (x int, modtime timestamp DEFAULT CURRENT_TIMESTAMP );
* contrib/pgcrypto soderzhit mnogo funkcij shifrovaniya dlya
ispol'zovaniya v SQL zaprosah.
* Est' tol'ko odin sposob shifrovaniya dannyh, peredavaemyh ot
klienta k serveru, cherez ispol'zovanie hostssl v pg_hba.conf.
* Dlya shifrovaniya peredavaemyh dannyh ot klienta k serveru, na
servere v fajle postgresql.conf, opciya ssl dolzhna byt'
ustanovlena v true, v fajle pg_hba.conf dolzhna byt'
sootvetstvuyuschaya zapis' host ili hostssl i na storone klienta
sslmode ne dolzhen byt' zapreschion cherez disable. (Zametim, chto
takzhe vozmozhno ispol'zovanie nezavisimyh vneshnih shifruyuschih
transportov, takih kak stunnel ili ssh, vmesto sobstvennyh SSL
soedinenij PostgreSQL).
* Paroli pol'zovatelej k baze dannyh avtomaticheski shifruyutsya,
pri sohranenii v versii 7.3. V predyduschih versiyah, vy dolzhny
razreshit' opciyu PASSWORD_ENCRYPTION v postgresql.conf.
......
doc/src/FAQ/FAQ_russian.html
View file @ 870d9641
......@@ -13,7 +13,7 @@
alink="#0000ff">
<H1> PostgreSQL</H1>
<P> : 30 22:24:56 EDT 2003</P>
<P> : 5 10:25:21 EDT 2003</P>
<P> : (Bruce Momjian) (<A href=
"mailto:pgman@candle.pha.pa.us">pgman@candle.pha.pa.us</A>)<BR>
......@@ -255,7 +255,10 @@
<P>PostgreSQL, MS Win NT/2000/XP
. PostgreSQL
Windows <a href="http://techdocs.postgresql.org/guides/Windows">
http://techdocs.postgresql.org/guides/Windows</a>.</P>
http://techdocs.postgresql.org/guides/Windows</a>
<a href="http://momjian.postgresql.org/main/writings/pgsql/win32.html">
http://momjian.postgresql.org/main/writings/pgsql/win32.html</a>.
</P>
<P> Novell Netware 6
<a href="http://forge.novell.com/">http://forge.novell.com</a>.</P>
......@@ -323,13 +326,13 @@
<CODE>irc -c '#PostgreSQL' "$USER" irc.phoenix.net.</CODE></P>
<P>
<A href="http://www.ca.postgresql.org/users-lounge/commercial-support.html">http://www.ca.PostgreSQL.org/users-lounge/commercial-support.html</A>.</P>
<A href="http://techdocs.postgresql.org/companies.php">http://techdocs.postgresql.org/companies.php</A>.</P>
<H4><A name="1.7">1.7</A>) ?</H4>
<P> PostgreSQL - 7.3.2.</P>
<P> PostgreSQL - 7.3.4.</P>
<P> .</P>
<P> 6-8 .</P>
<H4><A name="1.8">1.8</A>) ?</H4>
......@@ -343,7 +346,7 @@
"http://www.PostgreSQL.org/docs/awbook.html">http://www.PostgreSQL.org/docs/awbook.html</A>
<a href="http://www.commandprompt.com/ppbook/">http://www.commandprompt.com/ppbook/</a>.
PostgreSQL,
<a href="http://www.ca.postgresql.org/books/">http://www.ca.PostgreSQL.org/books/</a>.
<a href="http://techdocs.postgresql.org/techdocs/bookreviews.php">http://techdocs.postgresql.org/techdocs/bookreviews.php</a>.
, <a href="http://techdocs.postgresql.org">http://techdocs.PostgreSQL.org/</a>
PostgreSQL.</p>
......@@ -441,14 +444,19 @@
<DD>PostgreSQL
, -
, - . MySQL
, /,
. , MySQL -
, , ,
/ . MySQL
SELECT , .
, MySQL -
, <I></I>.
,
.
, PostgreSQL MySQL
<A href="http://openacs.org/philosophy/why-not-mysql.html">
http://openacs.org/philosophy/why-not-mysql.html</A><BR>
http://openacs.org/philosophy/why-not-mysql.html</A>. , MySQL -
,
,
, PostgreSQL.<BR>
<BR>
</DD>
......@@ -515,6 +523,9 @@
PostgreSQL - .
, , .</P>
<HR>
<p> PostgreSQL, ,
<a href="http://advocacy.postgresql.org/">
http://advocacy.postgresql.org</a>.</p>
<H2 align="center"> </H2>
......@@ -865,7 +876,7 @@
BEGIN;
ALTER TABLE tab ADD COLUMN new_col <i>new_data_type</i>;
UPDATE tab SET new_col = CAST(old_col AS <i>new_data_type</i>);
ALTER TABLE DROP COLUMN old_col;
ALTER TABLE tab DROP COLUMN old_col;
COMMIT;
</PRE>
......@@ -875,7 +886,7 @@
<P> :</P>
<PRE>
? ( 4 TB)
? 16 TB
? 32 TB
? 1.6 TB
? 1 GB
?
......@@ -888,14 +899,14 @@
,
.
<P> 16 TB
<P> 32 TB
.
1 GB, ,
.</P>
<P>
,
32k.</P>
,
32k.</P>
<H4><A name="4.6">4.6</A>)
?</H4>
......@@ -1171,7 +1182,8 @@ BYTEA bytea
<A href="#4.16"><SMALL>OID</SMALL></A>,
<SMALL>INSERT</SMALL> ,
. Perl, DBI Edmund Mergl' DBD::Pg,
, oid ,
4 . Perl, DBI Edmund Mergl' DBD::Pg,
oid <I>$sth-&gt;{pg_oid_status}</I>
<I>$sth-&gt;execute()</I>.
......@@ -1432,8 +1444,13 @@ BYTEA bytea
<ul>
<li><i>contrib/pgcrypto</i>
<small>SQL</small> .</li>
<li> ,
, <i>hostssl</i> <i>pg_hba.conf</i>.</li>
<li> ,
<i>postgresql.conf</i>, <i>ssl</i>
<i>true</i>, <i>pg_hba.conf</i>
<i>host</i> <i>hostssl</i> <i>sslmode</i>
ݣ <i>disable</i>. (,
,
stunnel ssh, SSL PostgreSQL).</li>
<li> ,
7.3. ,
<i>PASSWORD_ENCRYPTION</i> <i>postgresql.conf</i>.</li>
......
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