source: server/databases/postgresql.xml@ 88057a1

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1<?xml version="1.0" encoding="ISO-8859-1"?>
2<!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
3 "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
4 <!ENTITY % general-entities SYSTEM "../../general.ent">
5 %general-entities;
6
7 <!ENTITY postgresql-download-http "http://ftp.postgresql.org/pub/source/v&postgresql-version;/postgresql-&postgresql-version;.tar.bz2">
8 <!ENTITY postgresql-download-ftp "ftp://ftp.postgresql.org/pub/source/v&postgresql-version;/postgresql-&postgresql-version;.tar.bz2">
9 <!ENTITY postgresql-md5sum "5e45f6d5b859cc76b5d62f1e328e9711">
10 <!ENTITY postgresql-size "20 MB">
11 <!ENTITY postgresql-buildsize "188 MB (add 34 MB for tests)">
12 <!ENTITY postgresql-time "0.8 SBU (with parallelism=4, add 0.1 SBU for tests)">
13]>
14
15<sect1 id="postgresql" xreflabel="PostgreSQL-&postgresql-version;">
16 <?dbhtml filename="postgresql.html"?>
17
18 <sect1info>
19 <othername>$LastChangedBy$</othername>
20 <date>$Date$</date>
21 </sect1info>
22
23 <title>PostgreSQL-&postgresql-version;</title>
24
25 <indexterm zone="postgresql">
26 <primary sortas="a-PostgreSQL">PostgreSQL</primary>
27 </indexterm>
28
29 <sect2 role="package">
30 <title>Introduction to PostgreSQL</title>
31
32 <para><application>PostgreSQL</application> is an advanced
33 object-relational database management system (ORDBMS), derived
34 from the Berkeley Postgres database management system.</para>
35
36 &lfs83_checked;
37
38 <bridgehead renderas="sect3">Package Information</bridgehead>
39 <itemizedlist spacing="compact">
40 <listitem>
41 <para>Download (HTTP): <ulink url="&postgresql-download-http;"/></para>
42 </listitem>
43 <listitem>
44 <para>Download (FTP): <ulink url="&postgresql-download-ftp;"/></para>
45 </listitem>
46 <listitem>
47 <para>Download MD5 sum: &postgresql-md5sum;</para>
48 </listitem>
49 <listitem>
50 <para>Download size: &postgresql-size;</para>
51 </listitem>
52 <listitem>
53 <para>Estimated disk space required: &postgresql-buildsize;</para>
54 </listitem>
55 <listitem>
56 <para>Estimated build time: &postgresql-time;</para>
57 </listitem>
58 </itemizedlist>
59
60 <bridgehead renderas="sect3">PostgreSQL Dependencies</bridgehead>
61
62 <bridgehead renderas="sect4">Optional</bridgehead>
63 <para role="optional">
64 <xref linkend="python2"/>,
65 <xref linkend="tcl"/>,
66 <xref linkend="libxml2"/>,
67 <xref linkend="libxslt"/>,
68 <xref linkend="openldap"/>,
69 <xref linkend="linux-pam"/>,
70 <xref linkend="mitkrb"/> and
71 <ulink url="https://developer.apple.com/bonjour/">Bonjour</ulink>
72 </para>
73
74 <bridgehead renderas="sect4">Optional (To Regenerate Documentation)</bridgehead>
75 <para role="optional">
76 <xref linkend="sgml-dtd"/>,
77 <xref linkend="docbook-dsssl"/>,
78 <xref linkend="openjade"/>, and
79 <xref linkend="perl-sgmlspm"/>
80 </para>
81
82 <para condition="html" role="usernotes">User Notes:
83 <ulink url="&blfs-wiki;/postgresql"/></para>
84
85 </sect2>
86
87 <sect2 role="installation">
88 <title>Installation of PostgreSQL</title>
89
90 <para>
91 For enhanced security, it is better to have a dedicated group and user
92 for running the PostgreSQL server. First, issue as the
93 <systemitem class="username">root</systemitem> user:
94 </para>
95
96<screen role="root"><userinput>groupadd -g 41 postgres &amp;&amp;
97useradd -c "PostgreSQL Server" -g postgres -d /srv/pgsql/data \
98 -u 41 postgres</userinput></screen>
99
100 <note><para>There are several configuration items that add additional
101 functionality with optional packages to
102 <application>PostgreSQL</application>. Use <userinput>./configure
103 --help</userinput> to see a list.</para></note>
104
105 <para>Install <application>PostgreSQL</application> with the
106 following commands: </para>
107
108<screen><userinput>sed -i '/DEFAULT_PGSOCKET_DIR/s@/tmp@/run/postgresql@' src/include/pg_config_manual.h &amp;&amp;
109
110./configure --prefix=/usr \
111 --enable-thread-safety \
112 --docdir=/usr/share/doc/postgresql-&postgresql-version; &amp;&amp;
113make</userinput></screen>
114
115 <para>There are a number of programs in the
116 <filename class="directory">contrib/</filename> directory. If you are going
117 to run this installation as a server and wish to build some of them, enter
118 <command>make -C contrib</command> or
119 <command>make -C contrib/<replaceable>&lt;SUBDIR-NAME&gt;</replaceable></command> for each subdirectory.
120 </para>
121
122 <para>Tests must be run as an unprivileged user because they need to start a
123 temporary server and this is prevented as the root user. For the same reason,
124 you need to stop all PostgreSQL servers if any are running. If a previous
125 version of PostgreSQL is installed, it may be necessary to use
126 <command>--disable-rpath</command> with <command>configure</command> to
127 avoid failures, but <emphasis>installing the binaries created using this
128 switch is not recommended</emphasis>. To test the results, issue:
129 <command>make check</command>.</para>
130
131 <para>Now, as the <systemitem class="username">root</systemitem> user:</para>
132
133<screen role="root"><userinput>make install &amp;&amp;
134make install-docs</userinput></screen>
135
136 <para>If you made any of the <filename class="directory">contrib/</filename>
137 programs, as the <systemitem class="username">root</systemitem> user:</para>
138
139<screen role="nodump/"><userinput>make -C contrib/<replaceable>&lt;SUBDIR-NAME&gt;</replaceable> install</userinput></screen>
140
141 <para><emphasis>If you only intend to use
142 <application>PostgreSQL</application> as a client to connect to a server on
143 another machine, your installation is complete and you should not run the
144 remaining commands.</emphasis></para>
145
146 <!-- 'Upgrading' seems to only ever exist in the docs for *previous* version -->
147 <!-- Obsolete: only if upgrading for versions prior to 9 <note>
148 <para>If you are upgrading an existing system and are going to install
149 the new files over the old ones, then you should back up your data, shut
150 down the old server and follow the instructions in <ulink
151 url="http://www.postgresql.org/docs/9.0/static/install-upgrading.html">the
152 official <application>PostgreSQL</application> documentation</ulink>.</para>
153 </note>-->
154
155 <para>Initialize a database cluster with the following commands issued by the
156 <systemitem class="username">root</systemitem> user:</para>
157
158<screen role="root"><userinput>install -v -dm700 /srv/pgsql/data &amp;&amp;
159install -v -dm755 /run/postgresql &amp;&amp;
160chown -Rv postgres:postgres /srv/pgsql /run/postgresql</userinput></screen>
161
162 <para>Now, initialize the database as the <systemitem
163 class="username">root</systemitem> user:</para>
164
165<screen role="root"><userinput>su - postgres -c '/usr/bin/initdb -D /srv/pgsql/data'</userinput></screen>
166
167 </sect2>
168
169 <sect2 role="commands">
170 <title>Command Explanations</title>
171
172 <para>
173 <command>sed -i ...</command>: This sed changes server socket location
174 from <filename class="directory">/tmp</filename> to
175 <filename class="directory">/run/postgresql</filename><!-- and fix up the
176 regression tests to use <filename class="directory">/tmp</filename> so
177 that they can work reliably-->.
178 </para>
179
180 <para><parameter>--docdir=/usr/share/doc/postgresql-&postgresql-version;</parameter>:
181 This switch puts the documentation in a versioned directory.</para>
182
183 <para><parameter>--enable-thread-safety</parameter>: This switch makes the
184 client libraries thread-safe by allowing concurrent threads in
185 <filename class="libraryfile">libpq</filename> and ECPG programs to safely
186 control their private connection handles.</para>
187
188 <para><option>--with-openssl</option>: builds the package with support for
189 <application>OpenSSL</application> encrypted connections.</para>
190
191 <para><option>--with-perl</option>: builds the PL/Perl server-side language.
192 </para>
193
194 <para><option>--with-python</option>: builds the PL/Python server-side
195 language. Add PYTHON=/usr/bin/python2 for Python2 support, otherwise
196 Python3 is used by default.</para>
197
198 <para><option>--with-tcl</option>: builds the PL/Tcl server-side language.</para>
199
200 </sect2>
201
202 <sect2 role="configuration">
203 <title>Configuring PostgreSQL</title>
204
205 <sect3 id="postgresql-config">
206 <title>Config Files</title>
207
208 <para><filename>$PGDATA/pg_ident.con</filename>,
209 <filename>$PGDATA/pg_hba.conf</filename> and
210 <filename>$PGDATA/postgresql.conf</filename></para>
211
212 <indexterm zone="postgresql postgresql-config">
213 <primary sortas="e-A.PGDATA-pg_ident.con">$PGDATA/pg_indent.con</primary>
214 </indexterm>
215
216 <indexterm zone="postgresql postgresql-config">
217 <primary sortas="e-A.PGDATA-pg_hba.conf">$PGDATA/pg_hba_conf</primary>
218 </indexterm>
219
220 <indexterm zone="postgresql postgresql-config">
221 <primary sortas="e-A.PGDATA-postgresql.conf">$PGDATA/postgresql.conf</primary>
222 </indexterm>
223
224 <para>The <envar>PGDATA</envar> environment variable is used to
225 distinguish database clusters from one another by setting it to
226 the value of the directory which contains the cluster desired.
227 The three configuration files exist in every <filename
228 class="directory">PGDATA/</filename> directory. Details on the
229 format of the files and the options that can be set in each can
230 be found in <ulink
231 url="file:///usr/share/doc/postgresql-&postgresql-version;/html/index.html"/>.</para>
232
233 </sect3>
234
235 <sect3 id="postgresql-init">
236 <title><phrase revision="sysv">Boot Script</phrase>
237 <phrase revision="systemd">Systemd Unit</phrase></title>
238
239 <para>Install the
240 <phrase revision="sysv"><filename>/etc/rc.d/init.d/postgresql</filename>
241 init script</phrase>
242 <phrase revision="systemd"><filename>postgresql.service</filename>
243 unit</phrase> included in the
244 <xref linkend="bootscripts" revision="sysv"/>
245 <xref linkend="systemd-units" revision="systemd"/> package.</para>
246
247 <indexterm zone="postgresql postgresql-init">
248 <primary sortas="f-postgresql">postgresql</primary>
249 </indexterm>
250
251<screen role="root"><userinput>make install-postgresql</userinput></screen>
252
253 </sect3>
254
255 <sect3>
256 <title>Starting the PostgreSQL Server and Creating a Sample Database</title>
257
258 <para>
259 The database server can be manually started with the following command
260 (as the <systemitem class="username">root</systemitem> user):
261 </para>
262
263<screen role="root"><userinput>su - postgres -c '/usr/bin/postgres -D /srv/pgsql/data > \
264 /srv/pgsql/data/logfile 2&gt;&amp;1 &amp;'</userinput></screen>
265 <note>
266 <para>
267 If you are scripting this part, you should wait for the server to
268 start before going on, by adding for example
269 <command>sleep 2</command> after the above command.
270 </para>
271 </note>
272
273 <para>
274 The instructions below show how to create a database, add a table to
275 it, insert some rows into the table and select them, to verify that the
276 installation is working properly. Still as user <systemitem
277 class="username">root</systemitem>, issue:
278 </para>
279
280<screen role="root"><userinput>su - postgres -c '/usr/bin/createdb test' &amp;&amp;
281echo "create table t1 ( name varchar(20), state_province varchar(20) );" \
282 | (su - postgres -c '/usr/bin/psql test ') &amp;&amp;
283echo "insert into t1 values ('Billy', 'NewYork');" \
284 | (su - postgres -c '/usr/bin/psql test ') &amp;&amp;
285echo "insert into t1 values ('Evanidus', 'Quebec');" \
286 | (su - postgres -c '/usr/bin/psql test ') &amp;&amp;
287echo "insert into t1 values ('Jesse', 'Ontario');" \
288 | (su - postgres -c '/usr/bin/psql test ') &amp;&amp;
289echo "select * from t1;" | (su - postgres -c '/usr/bin/psql test')</userinput></screen>
290
291 <para>
292 When you are done with testing, you can shut down the server, by issuing
293 as <systemitem class="username">root</systemitem>:
294 </para>
295
296<screen role="root"><userinput>su - postgres -c "/usr/bin/pg_ctl stop -D /srv/pgsql/data"</userinput></screen>
297
298 </sect3>
299
300 </sect2>
301
302 <sect2 role="content">
303 <title>Contents</title>
304
305 <segmentedlist>
306 <segtitle>Installed Programs</segtitle>
307 <segtitle>Installed Libraries</segtitle>
308 <segtitle>Installed Directories</segtitle>
309
310 <seglistitem>
311 <seg>
312 clusterdb, createdb, createuser, dropdb,
313 dropuser, ecpg, initdb, pg_archivecleanup, pg_basebackup, pg_config,
314 pg_controldata, pg_ctl, pg_dump, pg_dumpall, pg_isready,
315 pg_receivewal, pg_recvlogical, pg_resetwval, pg_restore, pg_rewind,
316 pg_test_fsync, pg_test_timing, pg_upgrade, pg_waldump, pgbench,
317 postgres, postmaster (deprecated), psql, reindexdb, vacuumdb,
318 optionally, if Tcl support has been built, pltcl_delmod,
319 pltcl_listmod, pltcl_loadmod, and optionally (in contrib/) oid2name,
320 pg_standby, vacuumlo, and many others
321
322 </seg>
323 <seg>
324 libecpg.{so,a}, libecpg_compat.{so,a}, libpgcommon.a, libpgport.a,
325 libpgtypes.{so,a}, libpq.{so,a}, various charset modules, and
326 optionally programming language modules under /usr/lib/postgresql
327 </seg>
328 <seg>
329 /usr/include/{libpq,postgresql},
330 /usr/lib/postgresql,
331 /usr/share/{doc/postgresql-&postgresql-version;,postgresql}, and
332 /srv/pgsql
333 </seg>
334 </seglistitem>
335 </segmentedlist>
336
337 <variablelist>
338 <bridgehead renderas="sect3">Short Descriptions</bridgehead>
339 <?dbfo list-presentation="list"?>
340 <?dbhtml list-presentation="table"?>
341
342 <varlistentry id="clusterdb">
343 <term><command>clusterdb</command></term>
344 <listitem>
345 <para>is a utility for reclustering tables in a
346 <application>PostgreSQL</application> database.</para>
347 <indexterm zone="postgresql clusterdb">
348 <primary sortas="b-clusterdb">clusterdb</primary>
349 </indexterm>
350 </listitem>
351 </varlistentry>
352
353 <varlistentry id="createdb">
354 <term><command>createdb</command></term>
355 <listitem>
356 <para> creates a new <application>PostgreSQL</application>
357 database.</para>
358 <indexterm zone="postgresql createdb">
359 <primary sortas="b-createdb">createdb</primary>
360 </indexterm>
361 </listitem>
362 </varlistentry>
363
364<!-- <varlistentry id="createlang">
365 <term><command>createlang</command></term>
366 <listitem>
367 <para>defines a new <application>PostgreSQL</application> procedural
368 language.</para>
369 <indexterm zone="postgresql createlang">
370 <primary sortas="b-createlang">createlang</primary>
371 </indexterm>
372 </listitem>
373 </varlistentry>-->
374
375 <varlistentry id="createuser">
376 <term><command>createuser</command></term>
377 <listitem>
378 <para>defines a new <application>PostgreSQL</application>
379 user account.</para>
380 <indexterm zone="postgresql createuser">
381 <primary sortas="b-createuser">createuser</primary>
382 </indexterm>
383 </listitem>
384 </varlistentry>
385
386 <varlistentry id="dropdb">
387 <term><command>dropdb</command></term>
388 <listitem>
389 <para>removes a <application>PostgreSQL</application> database.</para>
390 <indexterm zone="postgresql dropdb">
391 <primary sortas="b-dropdb">dropdb</primary>
392 </indexterm>
393 </listitem>
394 </varlistentry>
395
396<!-- <varlistentry id="droplang">
397 <term><command>droplang</command></term>
398 <listitem>
399 <para>removes a <application>PostgreSQL</application> procedural
400 language.</para>
401 <indexterm zone="postgresql droplang">
402 <primary sortas="b-droplang">droplang</primary>
403 </indexterm>
404 </listitem>
405 </varlistentry> -->
406
407 <varlistentry id="dropuser">
408 <term><command>dropuser</command></term>
409 <listitem>
410 <para>removes a <application>PostgreSQL</application>
411 user account.</para>
412 <indexterm zone="postgresql dropuser">
413 <primary sortas="b-dropuser">dropuser</primary>
414 </indexterm>
415 </listitem>
416 </varlistentry>
417
418 <varlistentry id="ecpg">
419 <term><command>ecpg</command></term>
420 <listitem>
421 <para>is the embedded SQL preprocessor.</para>
422 <indexterm zone="postgresql ecpg">
423 <primary sortas="b-ecpg">ecpg</primary>
424 </indexterm>
425 </listitem>
426 </varlistentry>
427
428 <varlistentry id="initdb">
429 <term><command>initdb</command></term>
430 <listitem>
431 <para>creates a new database cluster.</para>
432 <indexterm zone="postgresql initdb">
433 <primary sortas="b-initdb">initdb</primary>
434 </indexterm>
435 </listitem>
436 </varlistentry>
437
438 <varlistentry id="oid2name">
439 <term><command>oid2name</command></term>
440 <listitem>
441 <para>resolves OIDs (Object IDs) and file nodes in a PostgreSQL data
442 directory.</para>
443 <indexterm zone="postgresql oid2name">
444 <primary sortas="b-oid2name">oid2name</primary>
445 </indexterm>
446 </listitem>
447 </varlistentry>
448
449 <varlistentry id="pg_archivecleanup">
450 <term><command>pg_archivecleanup</command></term>
451 <listitem>
452 <para>cleans up PostgreSQL WAL (write-ahead log) archive files.</para>
453 <indexterm zone="postgresql pg_archivecleanup">
454 <primary sortas="b-pg_archivecleanup">pg_archivecleanup</primary>
455 </indexterm>
456 </listitem>
457 </varlistentry>
458
459 <varlistentry id="pg_basebackup">
460 <term><command>pg_basebackup</command></term>
461 <listitem>
462 <para>takes base backups of a running
463 <application>PostgreSQL</application> cluster.</para>
464 <indexterm zone="postgresql pg_basebackup">
465 <primary sortas="b-pg_basebackup">pg_basebackup</primary>
466 </indexterm>
467 </listitem>
468 </varlistentry>
469
470 <varlistentry id="pg_config">
471 <term><command>pg_config</command></term>
472 <listitem>
473 <para>retrieves <application>PostgreSQL</application> version
474 information.</para>
475 <indexterm zone="postgresql pg_config">
476 <primary sortas="b-pg_config">pg_config</primary>
477 </indexterm>
478 </listitem>
479 </varlistentry>
480
481 <varlistentry id="pg_controldata">
482 <term><command>pg_controldata</command></term>
483 <listitem>
484 <para>returns information initialized during
485 <command>initdb</command>, such as the catalog version and server
486 locale.</para>
487 <indexterm zone="postgresql pg_controldata">
488 <primary sortas="b-pg_controldata">pg_controldata</primary>
489 </indexterm>
490 </listitem>
491 </varlistentry>
492
493 <varlistentry id="pg_ctl">
494 <term><command>pg_ctl</command></term>
495 <listitem>
496 <para>controls stopping and starting the database server.</para>
497 <indexterm zone="postgresql pg_ctl">
498 <primary sortas="b-pg_ctl">pg_ctl</primary>
499 </indexterm>
500 </listitem>
501 </varlistentry>
502
503 <varlistentry id="pg_dump">
504 <term><command>pg_dump</command></term>
505 <listitem>
506 <para>dumps database data and metadata into scripts which are used
507 to recreate the database.</para>
508 <indexterm zone="postgresql pg_dump">
509 <primary sortas="b-pg_dump">pg_dump</primary>
510 </indexterm>
511 </listitem>
512 </varlistentry>
513
514 <varlistentry id="pg_dumpall">
515 <term><command>pg_dumpall</command></term>
516 <listitem>
517 <para>recursively calls <command>pg_dump</command> for each
518 database in a cluster.</para>
519 <indexterm zone="postgresql pg_dumpall">
520 <primary sortas="b-pg_dumpall">pg_dumpall</primary>
521 </indexterm>
522 </listitem>
523 </varlistentry>
524
525 <varlistentry id="pg_isready">
526 <term><command>pg_isready</command></term>
527 <listitem>
528 <para>check the connection status of a PostgreSQL server.</para>
529 <indexterm zone="postgresql pg_isready">
530 <primary sortas="b-pg_isready">pg_isready</primary>
531 </indexterm>
532 </listitem>
533 </varlistentry>
534
535 <varlistentry id="pg_receivewal">
536 <term><command>pg_receivewal</command></term>
537 <listitem>
538 <para>
539 is used to stream write-ahead logs from a PostgreSQL server.
540 </para>
541 <indexterm zone="postgresql pg_receivewal">
542 <primary sortas="b-pg_receivewal">pg_receivewal</primary>
543 </indexterm>
544 </listitem>
545 </varlistentry>
546
547 <varlistentry id="pg_recvlogical">
548 <term><command>pg_recvlogical</command></term>
549 <listitem>
550 <para>controls PostgreSQL logical decoding streams.</para>
551 <indexterm zone="postgresql pg_recvlogical">
552 <primary sortas="b-pg_recvlogical">pg_recvlogical</primary>
553 </indexterm>
554 </listitem>
555 </varlistentry>
556
557 <varlistentry id="pg_resetwal">
558 <term><command>pg_resetwal</command></term>
559 <listitem>
560 <para>resets the write-ahead log and other control information
561 of a PostgreSQL database cluseter.</para>
562 <indexterm zone="postgresql pg_resetwal">
563 <primary sortas="b-pg_resetwal">pg_resetwal</primary>
564 </indexterm>
565 </listitem>
566 </varlistentry>
567
568 <varlistentry id="pg_restore">
569 <term><command>pg_restore</command></term>
570 <listitem>
571 <para>creates databases from dump files created by
572 <command>pg_dump</command>.</para>
573 <indexterm zone="postgresql pg_restore">
574 <primary sortas="b-pg_restore">pg_restore</primary>
575 </indexterm>
576 </listitem>
577 </varlistentry>
578
579 <varlistentry id="pg_rewind">
580 <term><command>pg_rewind</command></term>
581 <listitem>
582 <para>synchronizes a PostgreSQL data directory with another data
583 directory that was forked from the first one.</para>
584 <indexterm zone="postgresql pg_rewind">
585 <primary sortas="b-pg_rewind">pg_rewind</primary>
586 </indexterm>
587 </listitem>
588 </varlistentry>
589
590 <varlistentry id="pg_standby">
591 <term><command>pg_standby</command></term>
592 <listitem>
593 <para>supports the creation of a PostgreSQL warm standby
594 server.</para>
595 <indexterm zone="postgresql pg_standby">
596 <primary sortas="b-pg_standby">pg_standby</primary>
597 </indexterm>
598 </listitem>
599 </varlistentry>
600
601 <varlistentry id="pg_test_fsync">
602 <term><command>pg_test_fsync</command></term>
603 <listitem>
604 <para>determine fastest wal_sync method for PostgreSQL.</para>
605 <indexterm zone="postgresql pg_test_fsync">
606 <primary sortas="b-pg_test_fsync">pg_test_fsync</primary>
607 </indexterm>
608 </listitem>
609 </varlistentry>
610
611 <varlistentry id="pg_test_timing">
612 <term><command>pg_test_timing</command></term>
613 <listitem>
614 <para>measure timing overhead.</para>
615 <indexterm zone="postgresql pg_test_timing">
616 <primary sortas="b-pg_test_timing">pg_test_timing</primary>
617 </indexterm>
618 </listitem>
619 </varlistentry>
620
621 <varlistentry id="pg_upgrade">
622 <term><command>pg_upgrade</command></term>
623 <listitem>
624 <para>upgrade a PostgreSQL server instance.</para>
625 <indexterm zone="postgresql pg_upgrade">
626 <primary sortas="b-pg_upgrade">pg_upgrade</primary>
627 </indexterm>
628 </listitem>
629 </varlistentry>
630
631 <varlistentry id="pg_waldump">
632 <term><command>pg_waldump</command></term>
633 <listitem>
634 <para>display a human-readable rendering of the write-ahead log of a
635 PostgreSQL database cluster.</para>
636 <indexterm zone="postgresql pg_waldump">
637 <primary sortas="b-pg_waldump">pg_waldump</primary>
638 </indexterm>
639 </listitem>
640 </varlistentry>
641
642 <varlistentry id="pgbench">
643 <term><command>pgbench</command></term>
644 <listitem>
645 <para>run a benchmark test on PostgreSQL.</para>
646 <indexterm zone="postgresql pgbench">
647 <primary sortas="b-pgbench">pgbench</primary>
648 </indexterm>
649 </listitem>
650 </varlistentry>
651
652 <varlistentry id="pltcl_delmod">
653 <term><command>pltcl_delmod</command></term>
654 <listitem>
655 <para>is a support script used to delete a module from a
656 PL/<application>Tcl</application> table. The command
657 requires the <ulink
658 url="http://flightaware.github.io/Pgtcl/">Pgtcl</ulink>
659 package to be installed also.</para>
660 <indexterm zone="postgresql pltcl_delmod">
661 <primary sortas="b-pltcl_delmod">pltcl_delmod</primary>
662 </indexterm>
663 </listitem>
664 </varlistentry>
665
666 <varlistentry id="pltcl_listmod">
667 <term><command>pltcl_listmod</command></term>
668 <listitem>
669 <para>is a support script used to list the modules in a
670 PL/<application>Tcl</application> table. The command
671 requires the <ulink
672 url="http://gborg.postgresql.org/project/pgtcl/">Pgtcl</ulink>
673 package to be installed also.</para>
674 <indexterm zone="postgresql pltcl_listmod">
675 <primary sortas="b-pltcl_listmod">pltcl_listmod</primary>
676 </indexterm>
677 </listitem>
678 </varlistentry>
679
680 <varlistentry id="pltcl_loadmod">
681 <term><command>pltcl_loadmod</command></term>
682 <listitem>
683 <para>is a support script used to load a module into a
684 PL/<application>Tcl</application> table. The command
685 requires the <ulink
686 url="http://gborg.postgresql.org/project/pgtcl/">Pgtcl</ulink>
687 package to be installed also.</para>
688 <indexterm zone="postgresql pltcl_loadmod">
689 <primary sortas="b-pltcl_loadmod">pltcl_loadmod</primary>
690 </indexterm>
691 </listitem>
692 </varlistentry>
693
694 <varlistentry id="postgres">
695 <term><command>postgres</command></term>
696 <listitem>
697 <para>is the PostgreSQL database server.</para>
698 <indexterm zone="postgresql postgres">
699 <primary sortas="b-postgres">postgres</primary>
700 </indexterm>
701 </listitem>
702 </varlistentry>
703
704 <varlistentry id="postmaster">
705 <term><command>postmaster</command></term>
706 <listitem>
707 <para>(deprecated, a symlink to <command>postgres</command>) is a
708 multi-user database daemon.</para>
709 <indexterm zone="postgresql postmaster">
710 <primary sortas="b-postmaster">postmaster</primary>
711 </indexterm>
712 </listitem>
713 </varlistentry>
714
715 <varlistentry id="psql">
716 <term><command>psql</command></term>
717 <listitem>
718 <para>is a console based database shell.</para>
719 <indexterm zone="postgresql psql">
720 <primary sortas="b-psql">psql</primary>
721 </indexterm>
722 </listitem>
723 </varlistentry>
724
725 <varlistentry id="reindexdb">
726 <term><command>reindexdb</command></term>
727 <listitem>
728 <para>is a utility for rebuilding indexes in a database.</para>
729 <indexterm zone="postgresql reindexdb">
730 <primary sortas="b-reindexdb">reindexdb</primary>
731 </indexterm>
732 </listitem>
733 </varlistentry>
734
735 <varlistentry id="vacuumdb">
736 <term><command>vacuumdb</command></term>
737 <listitem>
738 <para>compacts databases and generates statistics for the query
739 analyzer.</para>
740 <indexterm zone="postgresql vacuumdb">
741 <primary sortas="b-vacuumdb">vacuumdb</primary>
742 </indexterm>
743 </listitem>
744 </varlistentry>
745
746 <varlistentry id="vacuumlo">
747 <term><command>vacuumlo</command></term>
748 <listitem>
749 <para>remove orphaned large objects from a PostgreSQL database.</para>
750 <indexterm zone="postgresql vacuumlo">
751 <primary sortas="b-vacuumlo">vacuumlo</primary>
752 </indexterm>
753 </listitem>
754 </varlistentry>
755
756 <varlistentry id="libecpg">
757 <term><filename class='libraryfile'>libecpg.{so,a}</filename></term>
758 <listitem>
759 <para>contains functions to support embedded SQL in C programs.</para>
760 <indexterm zone="postgresql libecpg">
761 <primary sortas="c-libecpg">libecpg.{so,a}</primary>
762 </indexterm>
763 </listitem>
764 </varlistentry>
765
766 <varlistentry id="libecpg_compat">
767 <term><filename class='libraryfile'>libecpg_compat.{so,a}</filename></term>
768 <listitem>
769 <para>is the ecpg compatibility library.</para>
770 <indexterm zone="postgresql libecpg_compat">
771 <primary sortas="c-libecpg_compat">libecpg_compat.{so,a}</primary>
772 </indexterm>
773 </listitem>
774 </varlistentry>
775
776 <varlistentry id="libgport">
777 <term><filename class='libraryfile'>libgport.a</filename></term>
778 <listitem>
779 <para>is the port-specific subsystem of the Postgres backend.</para>
780 <indexterm zone="postgresql libgport">
781 <primary sortas="c-libgport">libgport.a</primary>
782 </indexterm>
783 </listitem>
784 </varlistentry>
785
786 <varlistentry id="libpgtypes">
787 <term><filename class='libraryfile'>libpgtypes.{so,a}</filename></term>
788 <listitem>
789 <para>contains functions for dealing with Postgres data types.</para>
790 <indexterm zone="postgresql libpgtypes">
791 <primary sortas="c-libpgtypes">libpgtypes.{so,a}</primary>
792 </indexterm>
793 </listitem>
794 </varlistentry>
795
796 <varlistentry id="libpq">
797 <term><filename class='libraryfile'>libpq.{so,a}</filename></term>
798 <listitem>
799 <para>is the C programmer's API to Postgres.</para>
800 <indexterm zone="postgresql libpq">
801 <primary sortas="c-libpq">libpq.{so,a}</primary>
802 </indexterm>
803 </listitem>
804 </varlistentry>
805
806 </variablelist>
807
808 </sect2>
809
810</sect1>
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