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Update russian FAQ, from Viktor Vislobokov.

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...@@ -2,11 +2,10 @@ ...@@ -2,11 +2,10 @@
<HTML> <HTML>
<!-- DOCTYPE html PUBLIC "-//W3C//DTD HTML 3.2//EN" --> <!-- DOCTYPE html PUBLIC "-//W3C//DTD HTML 3.2//EN" -->
<!-- HTML -->
<HEAD> <HEAD>
<META name="generator" content="HTML Tidy, see www.w3.org"> <META name="generator" content="HTML Tidy, see www.w3.org">
<META http-equiv="Content-Type" content="text/html; charset=koi8-r">
<TITLE>PostgreSQL FAQ</TITLE> <TITLE>PostgreSQL FAQ</TITLE>
</HEAD> </HEAD>
...@@ -14,7 +13,7 @@ ...@@ -14,7 +13,7 @@
alink="#0000ff"> alink="#0000ff">
<H1> PostgreSQL</H1> <H1> PostgreSQL</H1>
<P> : 9 23:14:53 EDT 2002</P> <P> : 20 20:47:14 EDT 2002</P>
<P> : (Bruce Momjian) (<A href= <P> : (Bruce Momjian) (<A href=
"mailto:pgman@candle.pha.pa.us">pgman@candle.pha.pa.us</A>)<BR> "mailto:pgman@candle.pha.pa.us">pgman@candle.pha.pa.us</A>)<BR>
...@@ -32,8 +31,7 @@ ...@@ -32,8 +31,7 @@
<HR> <HR>
<H2 align="center"> </H2> <H2 align="center"> </H2>
<A href="#1.1">1.1</A>) PostgreSQL? <A href="#1.1">1.1</A>) PostgreSQL? ?<BR>
?<BR>
<A href="#1.2">1.2</A>) PostgreSQL?<BR> <A href="#1.2">1.2</A>) PostgreSQL?<BR>
<A href="#1.3">1.3</A>) Unix PostgreSQL?<BR> <A href="#1.3">1.3</A>) Unix PostgreSQL?<BR>
<A href="#1.4">1.4</A>) Unix ?<BR> <A href="#1.4">1.4</A>) Unix ?<BR>
...@@ -80,8 +78,7 @@ ...@@ -80,8 +78,7 @@
<A href="#3.7">3.7</A>) ?<BR> <A href="#3.7">3.7</A>) ?<BR>
<A href="#3.8">3.8</A>) <I>"Sorry, too many <A href="#3.8">3.8</A>) <I>"Sorry, too many
clients"</I> ?<BR> clients"</I> ?<BR>
<A href="#3.9">3.9</A>) <I>pg_sorttempNNN.NN</I> <A href="#3.9">3.9</A>) <I>pgsql_tmp</I>?<BR>
?<BR>
<A href="#3.10">3.10</A>) dump restore <A href="#3.10">3.10</A>) dump restore
PostgreSQL?<BR> PostgreSQL?<BR>
...@@ -143,6 +140,7 @@ ...@@ -143,6 +140,7 @@
<A href="#4.26">4.26</A>) / <A href="#4.26">4.26</A>) /
PL/PgSQL?<BR> PL/PgSQL?<BR>
<A href="#4.27">4.27</A>) ?<BR> <A href="#4.27">4.27</A>) ?<BR>
<A href="#4.28">4.28</A>) ?<BR>
<H2 align="center"> PostgreSQL</H2> <H2 align="center"> PostgreSQL</H2>
<A href="#5.1">5.1</A>) . <A href="#5.1">5.1</A>) .
...@@ -158,7 +156,7 @@ ...@@ -158,7 +156,7 @@
<H2 align="center"> </H2> <H2 align="center"> </H2>
<H4><A name="1.1">1.1</A>) PostgreSQL?</H4> <H4><A name="1.1">1.1</A>) PostgreSQL? ?</H4>
<P>PostgreSQL <I>Post-Gres-Q-L (---)</I>.</P> <P>PostgreSQL <I>Post-Gres-Q-L (---)</I>.</P>
...@@ -169,13 +167,12 @@ ...@@ -169,13 +167,12 @@
<SMALL>SQL</SMALL>. PostgreSQL - <SMALL>SQL</SMALL>. PostgreSQL -
.</P> .</P>
<P> PostgreSQL , <P> PostgreSQL ,
Internet, . ,
. , (Marc G. Fournier) (<A href=
(Marc G. Fournier) (<A href=
"mailto:scrappy@PostgreSQL.org">scrappy@PostgreSQL.org</A>). (. "mailto:scrappy@PostgreSQL.org">scrappy@PostgreSQL.org</A>). (.
, ). <A href="#1.6">1.6</A> , ).
PostgreSQL.</P> PostgreSQL.</P>
<P> PostgreSQL 1.01 (Andrew Yu) <P> PostgreSQL 1.01 (Andrew Yu)
(Jolly Chen). (Jolly Chen).
...@@ -240,10 +237,10 @@ ...@@ -240,10 +237,10 @@
<P><STRONG></STRONG></P> <P><STRONG></STRONG></P>
<P> MS Windows C <P> MS Windows C
<I>libpq</I>, psql . <I>libpq</I>, psql, .
, MS Windows , MS Windows
TCP/IP , Unix TCP/IP , Unix
. <I>win31.mak</I> , . <I>win32.mak</I> ,
<I>libpq</I> <I>libpq</I>
<I>psql</I> Win32. PostgreSQL <I>psql</I> Win32. PostgreSQL
<SMALL>ODBC</SMALL>.</P> <SMALL>ODBC</SMALL>.</P>
...@@ -252,10 +249,12 @@ ...@@ -252,10 +249,12 @@
<P> Windows NT Win2k, <P> Windows NT Win2k,
Cygwin, Unix Cygwin, Unix
NT. <I>pgsql/doc/FAQ_MSWIN</I> <A href= NT. <I>pgsql/doc/FAQ_MSWIN</I>
"http://www.postgresql.org/docs/faq-mswin.html">MS Windows FAQ</A> MS Windows FAQ <A href="http://www.postgresql.org/docs/faq-mswin.html">
. PostgreSQL http://www.PostgreSQL.org/docs/faq-mswin.html</A>.</P>
- Microsoft.</P>
<P>PostgreSQL, MS Win NT/2000/XP
.</P>
<H4><A name="1.5">1.5</A>) PostgreSQL?</H4> <H4><A name="1.5">1.5</A>) PostgreSQL?</H4>
...@@ -321,7 +320,7 @@ ...@@ -321,7 +320,7 @@
<P> <P>
<A href= <A href=
"http://www.postgresql.org/users-lounge/commercial-support.html">http://www.postgresql.org/users-lounge/commercial-support.html</A>.</P> "http://www.postgresql.org/users-lounge/commercial-support.html">http://www.PostgreSQL.org/users-lounge/commercial-support.html</A>.</P>
<H4><A name="1.7">1.7</A>) ?</H4> <H4><A name="1.7">1.7</A>) ?</H4>
...@@ -341,8 +340,8 @@ ...@@ -341,8 +340,8 @@
"http://www.PostgreSQL.org/docs/awbook.html">http://www.PostgreSQL.org/docs/awbook.html</A> "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>. <a href="http://www.commandprompt.com/ppbook/">http://www.commandprompt.com/ppbook/</a>.
PostgreSQL, PostgreSQL,
<a href="http://www.postgresql.org/books/">http://www.postgresql.org/books/</a>. <a href="http://www.ca.postgresql.org/books/">http://www.ca.PostgreSQL.org/books/</a>.
, <a href="http://techdocs.postgresql.org">http://techdocs.postgresql.org/</a> , <a href="http://techdocs.postgresql.org">http://techdocs.PostgreSQL.org/</a>
PostgreSQL.</p> PostgreSQL.</p>
...@@ -405,8 +404,8 @@ ...@@ -405,8 +404,8 @@
<H4><A name="1.13">1.13</A>) ??</H4> <H4><A name="1.13">1.13</A>) ??</H4>
<P> <A href= <P> PostgreSQL BugTool <A href=
"http://www.postgresql.org/bugs/bugs.php">PostgreSQL BugTool</A>, "http://www.postgresql.org/bugs/bugs.php">http://www.PostgreSQL.org/bugs/bugs.php</A>,
.</P> .</P>
...@@ -445,9 +444,8 @@ ...@@ -445,9 +444,8 @@
, ,
. .
, PostgreSQL MySQL , PostgreSQL MySQL
<A href="http://openacs.org/why-not-mysql.html"> <A href="http://openacs.org/philosophy/why-not-mysql.html">
http://openacs.org/philosophy/why-not-mysql.html</A><BR>
http://openacs.org/why-not-mysql.html</A><BR>
<BR> <BR>
</DD> </DD>
...@@ -467,15 +465,15 @@ ...@@ -467,15 +465,15 @@
<DT><B></B></DT> <DT><B></B></DT>
<DD> <DD>
, ,
. , - , . , -
<SMALL></SMALL> , <SMALL></SMALL>
. , , . ,
PostgreSQL ,
<SMALL></SMALL>. PostgreSQL <SMALL></SMALL>.
, ,
. ( <A href="#1.6"> ?</A>.)<BR> . ( <A href="#1.6"> 1.6</A>.)<BR>
<BR> <BR>
</DD> </DD>
...@@ -493,7 +491,7 @@ ...@@ -493,7 +491,7 @@
PostgreSQL?</H4> PostgreSQL?</H4>
<P>PostgreSQL <P>PostgreSQL
6 . 1996 .
(Marc Fournier), (Marc Fournier),
.</P> .</P>
...@@ -505,8 +503,8 @@ ...@@ -505,8 +503,8 @@
, ,
. , . ,
, ,
<A href="https://store.pgsql.com/shopping/index.php?id=1"> <A href="https://store.pgsql.com/shopping/">
https://store.pgsql.com/shopping/index.php?id=1</A> https://store.pgsql.com/shopping/</A>
.</P> .</P>
<P> PostgreSQL, Inc, <P> PostgreSQL, Inc,
...@@ -549,29 +547,23 @@ ...@@ -549,29 +547,23 @@
<P> Web : <P> Web :
<A href="http://www.webreview.com">http://www.webreview.com</A></P> <A href="http://www.webreview.com">http://www.webreview.com</A></P>
<P> <A href=
"http://www.phone.net/home/mwm/hotlist/">http://www.phone.net/home/mwm/hotlist/.</A></P>
<P> Web, PHP. <P> Web, PHP.
<A <A href="http://www.php.net">http://www.php.net</A>.</P>
href="http://www.php.net">http://www.php.net</A>.</P>
<P> , Perl CGI.pm.</P> <P> , Perl CGI.pm mod_perl.</P>
<H4><A name="2.3">2.3</A>) PostgreSQL <H4><A name="2.3">2.3</A>) PostgreSQL
? ? ? ?
?</H4> ?</H4>
<P> , <P> ,
<I>pgaccess</I>, . <I>pgaccess</I> PgAccess, .
. <A href= <A href="http://www.pgaccess.org">http://www.pgaccess.org/</A></P>
"http://www.flex.ro/pgaccess">http://www.flex.ro/pgaccess</A></P>
<P> <I>ecpg</I>, <P> <I>ecpg</I>,
SQL C.</P> SQL C.</P>
<H4><A name="2.4">2.4</A>) <H4><A name="2.4">2.4</A>) PostgreSQL?</H4>
PostgreSQL?</H4>
<P> :</P> <P> :</P>
...@@ -584,7 +576,7 @@ ...@@ -584,7 +576,7 @@
<LI>Java (jdbc)</LI> <LI>Java (jdbc)</LI>
<LI>Perl (perl5)</LI> <LI>Perl (DBD::Pg perl5)</LI>
<LI>ODBC (odbc)</LI> <LI>ODBC (odbc)</LI>
...@@ -594,11 +586,12 @@ ...@@ -594,11 +586,12 @@
<LI>C Easy API (libpgeasy)</LI> <LI>C Easy API (libpgeasy)</LI>
<LI>Embedded <SMALL>HTML</SMALL> (<A href= <LI>PHP ('pg_' functions, Pear::DB)</LI>
"http://www.php.net">PHP from http://www.php.net</A>)</LI>
</UL> </UL>
<P> <A href="http://www.postgresql.org/interfaces.html"> <P>
http://www.postgresql.org/interfaces.html.</A> <A href="http://www.postgresql.org/interfaces.html">http://www.PostgreSQL.org/interfaces.html.</A>
<A href="http://gborg.postgresql.org/">http://gborg.PostgreSQL.org</a>.
</P> </P>
<HR> <HR>
...@@ -671,7 +664,7 @@ ...@@ -671,7 +664,7 @@
<P> <SMALL>INSERT</SMALL>, <P> <SMALL>INSERT</SMALL>,
, ,
<SMALL>COPY</SMALL>. , <SMALL>COPY</SMALL>. ,
<SMALL>INSERT.</SMALL> -, <SMALL>INSERT</SMALL>. -,
<SMALL>BEGIN WORK/COMMIT</SMALL> . <SMALL>BEGIN WORK/COMMIT</SMALL> .
. .
. , . ,
...@@ -740,7 +733,7 @@ ...@@ -740,7 +733,7 @@
<P> <I>postmaster</I> , <I>psql</I> <P> <I>postmaster</I> , <I>psql</I>
, <SMALL>PID</SMALL> <I>postgres</I>, , <SMALL>PID</SMALL> <I>postgres</I>,
<I>psql</I>. <I>psql</I>.
<I>postgres</I> <SMALL>PID.</SMALL> <I>postgres</I> <SMALL>PID</SMALL>.
<I>psql</I>. <I>psql</I>.
<I>postgres</I>, <I>postgres</I>,
PGOPTIONS="-W n", <I>psql</I>. PGOPTIONS="-W n", <I>psql</I>.
...@@ -781,7 +774,7 @@ ...@@ -781,7 +774,7 @@
, <SMALL>SEMMNS</SMALL> <SMALL>SEMMNI;</SMALL> , <SMALL>SEMMNS</SMALL> <SMALL>SEMMNI;</SMALL>
, <SMALL>NPROC;</SMALL> , <SMALL>NPROC;</SMALL>
, <SMALL>MAXUPRC;</SMALL> , <SMALL>MAXUPRC;</SMALL>
, <SMALL>NFILE</SMALL> <SMALL>NINODE.</SMALL> , <SMALL>NFILE</SMALL> <SMALL>NINODE</SMALL>.
backend backend
, .</P> , .</P>
...@@ -789,38 +782,35 @@ ...@@ -789,38 +782,35 @@
64, 64,
MaxBackendId <I>include/storage/sinvaladt.h</I>.</P> MaxBackendId <I>include/storage/sinvaladt.h</I>.</P>
<H4><A name="3.9">3.9</A>) <I>pg_sorttempNNN.NN</I> <H4><A name="3.9">3.9</A>) <I>pgsql_tmp</I>?</H4>
?</H4>
<P> , .
, <SMALL>ORDER BY</SMALL>
,
backend <I>-S</I>,
.</P>
<P> , <P> ,
, backend . . , <small>ORDER BY</small>
backend , , <i>-S</i>
pg_tempNNN.NN.</P> backend',
.</P>
<P> ,
, backend .
.</P>
<A name="3.10">3.10</A>) dump restore <H4><A name="3.10">3.10</A>) dump restore
PostgreSQL?<BR> PostgreSQL?</H4>
<P> PostgreSQL <P> PostgreSQL
. 7.2 7.2.1 . 7.2 7.2.1
dump restore. dump restore.
. (.. , 7.2 7.3)
, .
. dump ,
, . dump
.</P> ,
.</P>
<P> <P> , ,
, ,
<i>pg_upgrade</i> <i>pg_upgrade</i>
dump/restore. dump/restore.
<i>pg_upgrade</i> . <i>pg_upgrade</i> .</P>
</P>
<HR> <HR>
<H2 align="center"> </H2> <H2 align="center"> </H2>
...@@ -857,7 +847,8 @@ ...@@ -857,7 +847,8 @@
<H4><A name="4.4">4.4</A>) ?</H4> <H4><A name="4.4">4.4</A>) ?</H4>
<P> <SMALL>ALTER TABLE DROP COLUMN,</SMALL> <P> 7.3
<small>ALTER TABLE DROP COLUMN</small>. ,
:</P> :</P>
<PRE> <PRE>
BEGIN; BEGIN;
...@@ -981,21 +972,21 @@ ...@@ -981,21 +972,21 @@
SELECT col SELECT col
FROM tab FROM tab
ORDER BY col [ DESC ] ORDER BY col [ DESC ]
LIMIT 1 LIMIT 1;
</pre> </pre>
<P> , <SMALL>LIKE</SMALL> <P> , <SMALL>LIKE</SMALL>
<I>~</I>, : <I>~</I>, :</P>
</P><UL>
<LI> , ..:</LI>
<UL> <UL>
<LI><small>LIKE</small> <i>%.</i><LI> <LI> , ..:
<LI><i>~</i> <i>^.</i><LI> <UL>
</UL> <LI><small>LIKE</small> <i>%.</i>.</LI>
<LI><i>~</i> <i>^</i>.</LI>
</UL></LI>
<LI> , .. [a-e].</LI> <LI> , .. [a-e].</LI>
<LI> <LI> , <small>ILIKE</small>
<small>ILIKE</small> <i>~</i>. <i>~*</i> . ,
, FAQ .</LI> , <A href="#4.12">4.12</A>.</LI>
<LI> <i>initdb</i> <LI> <i>initdb</i>
<i>C</i>. <i>C</i>.
</UL> </UL>
...@@ -1053,13 +1044,13 @@ ...@@ -1053,13 +1044,13 @@
<PRE> <PRE>
SELECT * SELECT *
FROM tab FROM tab
WHERE lower(col) = 'abc' WHERE lower(col) = 'abc';
</PRE> </PRE>
. , . ,
, : , :
<PRE> <PRE>
CREATE INDEX tabindex on tab (lower(col)); CREATE INDEX tabindex ON tab (lower(col));
</PRE> </PRE>
<H4><A name="4.13">4.13</A>) , <H4><A name="4.13">4.13</A>) ,
...@@ -1074,8 +1065,8 @@ ...@@ -1074,8 +1065,8 @@
-------------------------------------------------- --------------------------------------------------
"char" char 1 "char" char 1
CHAR(#) bpchar CHAR(n) bpchar
VARCHAR(#) varchar , VARCHAR(n) varchar ,
TEXT text TEXT text
BYTEA bytea ( null- ) BYTEA bytea ( null- )
</PRE> </PRE>
...@@ -1091,13 +1082,14 @@ BYTEA bytea ...@@ -1091,13 +1082,14 @@ BYTEA bytea
, ,
.</P> .</P>
<P><SMALL>CHAR()</SMALL> - , <P><SMALL>CHAR(n)</SMALL> - ,
. <SMALL>VARCHAR()</SMALL> - . <SMALL>VARCHAR(n)</SMALL> -
, , , ,
. <SMALL>TEXT</SMALL> - . <SMALL>TEXT</SMALL> -
, 1 . , 1 .
<SMALL>BYTEA</SMALL> , <SMALL>BYTEA</SMALL> ,
<SMALL>NULL</SMALL> .</P> <SMALL>NULL</SMALL> .
.</P>
<H4><A name="4.15.1">4.15.1</A>) <H4><A name="4.15.1">4.15.1</A>)
serial/--?</H4> serial/--?</H4>
...@@ -1136,11 +1128,11 @@ BYTEA bytea ...@@ -1136,11 +1128,11 @@ BYTEA bytea
<P> <P>
<SMALL>SERIAL</SMALL> sequence <SMALL>SERIAL</SMALL> sequence
<I>nextval()</I> <I></I> <I>nextval()</I> <I></I>
. - <A href="#4.15.1">4.15.1</A>, . - <A href="#4.15.1">4.15.1</A>,
Perl:</P> :</P>
<PRE> <PRE>
new_id = output of "SELECT nextval('person_id_seq')" new_id = execute("SELECT nextval('person_id_seq')");
INSERT INTO person (id, name) VALUES (new_id, 'Blaise Pascal'); execute("INSERT INTO person (id, name) VALUES (new_id, 'Blaise Pascal')");
</PRE> </PRE>
...@@ -1152,11 +1144,11 @@ BYTEA bytea ...@@ -1152,11 +1144,11 @@ BYTEA bytea
<SMALL>SERIAL</SMALL>. <SMALL>SERIAL</SMALL>.
<P> , <P> ,
<SMALL>SERIAL</SMALL> <I>currval</I>() <SMALL>SERIAL</SMALL> <I>currval()</I>
<I></I> , </P> <I></I> , </P>
<PRE> <PRE>
INSERT INTO person (name) VALUES ('Blaise Pascal'); execute("INSERT INTO person (name) VALUES ('Blaise Pascal')");
new_id = output of "SELECT currval('person_id_seq')"; new_id = execute("SELECT currval('person_id_seq')");
</PRE> </PRE>
, ,
...@@ -1171,7 +1163,7 @@ BYTEA bytea ...@@ -1171,7 +1163,7 @@ BYTEA bytea
<I>currval()</I> <I>nextval()</I> <I>currval()</I> <I>nextval()</I>
?</H4> ?</H4>
<P>. Currval() , <P>. <i>currval()</i> ,
backend', .</P> backend', .</P>
<H4><A name="4.15.4">4.15.4</A>) <H4><A name="4.15.4">4.15.4</A>)
...@@ -1191,7 +1183,7 @@ BYTEA bytea ...@@ -1191,7 +1183,7 @@ BYTEA bytea
PostgreSQL. , PostgreSQL PostgreSQL. , PostgreSQL
<SMALL>OID</SMALL>. <SMALL>OID</SMALL> <SMALL>OID</SMALL>. <SMALL>OID</SMALL>
<I>initdb</I> 16384 ( <I>initdb</I> 16384 (
<I>backend/access/transam.h</I>). <I>include/access/transam.h</I>).
<SMALL>OID</SMALL> . , <SMALL>OID</SMALL> . ,
<SMALL>OID</SMALL> - <SMALL>OID</SMALL> -
, PostgreSQL.</P> , PostgreSQL.</P>
...@@ -1215,13 +1207,12 @@ BYTEA bytea ...@@ -1215,13 +1207,12 @@ BYTEA bytea
COPY new TO '/tmp/pgtable'; COPY new TO '/tmp/pgtable';
DELETE FROM new; DELETE FROM new;
COPY new WITH OIDS FROM '/tmp/pgtable'; COPY new WITH OIDS FROM '/tmp/pgtable';
</PRE>
<!-- <!--
CREATE TABLE new_table (mycol int); CREATE TABLE new_table (mycol int);
INSERT INTO new_table (oid, mycol) SELECT oid, mycol FROM old_table; INSERT INTO new_table (oid, mycol) SELECT oid, mycol FROM old_table;
--> -->
</PRE> <P>O<SMALL>ID</SMALL> 4-
<P><SMALL>OID</SMALL> 4-
4 . , , 4 . , ,
, ,
.</P> .</P>
...@@ -1258,8 +1249,7 @@ BYTEA bytea ...@@ -1258,8 +1249,7 @@ BYTEA bytea
<LI>range variable, table name, table alias</LI> <LI>range variable, table name, table alias</LI>
</UL> </UL>
<P> <A href= <P> <A href="http://hea-www.harvard.edu/MST/simul/software/docs/pkgs/pgsql/glossary/glossary.html">http://hea-www.harvard.edu/MST/simul/software/docs/pkgs/pgsql/glossary/glossary.html</A></P>
"http://www.comptechnews.com/~reaster/dbdesign.html">http://www.comptechnews.com/~reaster/dbdesign.html</A></P>
<H4><A name="4.18">4.18</A>) <I>"ERROR: Memory <H4><A name="4.18">4.18</A>) <I>"ERROR: Memory
exhausted in AllocSetAlloc()"</I>?</H4> exhausted in AllocSetAlloc()"</I>?</H4>
...@@ -1284,7 +1274,7 @@ BYTEA bytea ...@@ -1284,7 +1274,7 @@ BYTEA bytea
<H4><A name="4.19">4.19</A>) , PostgreSQL <H4><A name="4.19">4.19</A>) , PostgreSQL
?</H4> ?</H4>
<P> <I>psql</I>, <CODE>select version();</CODE></P> <P> <I>psql</I>, <CODE>SELECT version();</CODE></P>
<H4><A name="4.20">4.20</A>) <H4><A name="4.20">4.20</A>)
<I>"invalid large obj descriptor"</I>?</H4> <I>"invalid large obj descriptor"</I>?</H4>
...@@ -1324,18 +1314,16 @@ BYTEA bytea ...@@ -1324,18 +1314,16 @@ BYTEA bytea
, <CODE>IN</CODE> , <CODE>IN</CODE>
<CODE>EXISTS</CODE>:</P> <CODE>EXISTS</CODE>:</P>
<PRE> <PRE>
<CODE>SELECT * SELECT *
FROM tab FROM tab
WHERE col IN (SELECT subcol FROM subtab) WHERE col IN (SELECT subcol FROM subtab);
</CODE>
</PRE> </PRE>
: :
<PRE> <PRE>
<CODE>SELECT * SELECT *
FROM tab FROM tab
WHERE EXISTS (SELECT subcol FROM subtab WHERE subcol = col) WHERE EXISTS (SELECT subcol FROM subtab WHERE subcol = col);
</CODE>
</PRE> </PRE>
, <CODE>subcol</CODE> , <CODE>subcol</CODE>
...@@ -1390,7 +1378,7 @@ BYTEA bytea ...@@ -1390,7 +1378,7 @@ BYTEA bytea
PostgreSQL PostgreSQL
, , .</P> , , .</P>
<P><I>/contrib/dblink</I> , <P><I>contrib/dblink</I> ,
. , . ,
.</P> .</P>
...@@ -1399,8 +1387,8 @@ BYTEA bytea ...@@ -1399,8 +1387,8 @@ BYTEA bytea
<P> PL/pgSQL , <P> PL/pgSQL ,
<i>refcursors</i>. <A <i>refcursors</i>. <A
href="http://developer.postgresql.org/docs/postgres/plpgsql-cursors.html"> href="http://www.postgresql.org/idocs/index.php?plpgsql-cursors.html">
http://developer.postgresql.org/docs/postgres/plpgsql-cursors.html,</a> http://www.PostgreSQL.org/idocs/index.php?plpgsql-cursors.html</a>,
23.7.3.3.</P> 23.7.3.3.</P>
<H4><A name="4.26">4.26</A>) / <H4><A name="4.26">4.26</A>) /
...@@ -1416,10 +1404,26 @@ BYTEA bytea ...@@ -1416,10 +1404,26 @@ BYTEA bytea
<H4><A name="4.27">4.27</A>) ?</H4> <H4><A name="4.27">4.27</A>) ?</H4>
<P> master/slave. <P> master/slave.
, master ,
slave .</P> slave .
: <A href="http://gborg.postgresql.org/genpage?replication_research">
http://gborg.PostgreSQL.org/genpage?replication_research</A>.
master :
<a href="http://gborg.postgresql.org/project/pgreplication/projdisplay.php">http://gborg.PostgreSQL.org/project/pgreplication/projdisplay.php</A>.</P>
<h4><a name="4.28">4.28</a>) ?
</h4>
<ul>
<li><i>contrib/pgcrypto</i>
<small>SQL</small> .</li>
<li> ,
, <i>hostssl</i> <i>pg_hba.conf</i>.</li>
<li> ,
7.3. ,
<i>PASSWORD_ENCRYPTION</i> <i>postgresql.conf</i>.</li>
<li> , .</li>
</ul>
<HR> <HR>
<H2 align="center"> PostgreSQL</H2> <H2 align="center"> PostgreSQL</H2>
...@@ -1439,8 +1443,10 @@ BYTEA bytea ...@@ -1439,8 +1443,10 @@ BYTEA bytea
<H4><A name="5.3">5.3</A>) C , <H4><A name="5.3">5.3</A>) C ,
?</H4> ?</H4>
<P> <P> PostgreSQL, 7.3, ,
, .</P> C, PL/PgSQL SQL.
. ,
C, <i>contrib/tablefunc</i>.</P>
<H4><A name="5.4">5.4</A>) . <H4><A name="5.4">5.4</A>) .
?</H4> ?</H4>
......
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