source: server/databases/postgresql.xml@ a0fa5dd

systemd-13485
Last change on this file since a0fa5dd was a0fa5dd, checked in by DJ Lucas <dj@…>, 8 years ago

Update to trunk r17385.

git-svn-id: svn://svn.linuxfromscratch.org/BLFS/branches/systemd@17386 af4574ff-66df-0310-9fd7-8a98e5e911e0
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File size: 28.8 KB
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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 "3f0c388566c688c82b01a0edf1e6b7a0">
10 <!ENTITY postgresql-size "17.6 MB">
11 <!ENTITY postgresql-buildsize "190 MB (with tests)">
12 <!ENTITY postgresql-time "1.9 SBU (with 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 &lfs78_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="openssl"/>,
67 <xref linkend="libxml2"/>,
68 <xref linkend="libxslt"/>,
69 <xref linkend="openldap"/>,
70 <xref linkend="linux-pam"/>,
71 <xref linkend="mitkrb"/> and
72 <ulink url="http://developer.apple.com/networking/bonjour/">Bonjour</ulink>
73 </para>
74
75 <bridgehead renderas="sect4">Optional (To Regenerate Documentation)</bridgehead>
76 <para role="optional">
77 <xref linkend="sgml-dtd"/>,
78 <xref linkend="docbook-dsssl"/>,
79 <xref linkend="openjade"/>, and
80 <xref linkend="perl-sgmlspm"/>
81 </para>
82
83 <para condition="html" role="usernotes">User Notes:
84 <ulink url="&blfs-wiki;/postgresql"/></para>
85
86 </sect2>
87
88 <sect2 role="installation">
89 <title>Installation of PostgreSQL</title>
90
91 <para>Install <application>PostgreSQL</application> with the
92 following commands: </para>
93
94<screen><userinput>sed -i '/DEFAULT_PGSOCKET_DIR/s@/tmp@/run/postgresql@' src/include/pg_config_manual.h &amp;&amp;
95./configure --prefix=/usr \
96 --enable-thread-safety \
97 --docdir=/usr/share/doc/postgresql-&postgresql-version; &amp;&amp;
98make</userinput></screen>
99
100 <para>There are a number of programs in the
101 <filename class="directory">contrib/</filename> directory. If you are going
102 to run this installation as a server and wish to build some of them, enter
103 <command>make -C contrib</command> or
104 <command>make -C contrib/<replaceable>&lt;SUBDIR-NAME&gt;</replaceable></command> for each subdirectory.
105 </para>
106
107 <para>Tests must be run as an unprivileged user because they need to start a
108 temporary server and this is prevented as the root user. For the same reason,
109 you need to stop all PostgreSQL servers if any are running. If a previous
110 version of PostgreSQL is installed, it may be necessary to use
111 <emphasis>--disable-rpath</emphasis> with <emphasis>configure</emphasis> to
112 avoid failures, but <command>installing the binaries created using this
113 switch is not recommended</command>. To test the results, issue:
114 <command>make check</command>.</para>
115
116 <para>Now, as the <systemitem class="username">root</systemitem> user:</para>
117
118<screen role="root"><userinput>make install &amp;&amp;
119make install-docs</userinput></screen>
120
121 <para>If you made any of the <filename class="directory">contrib/</filename>
122 programs, as the <systemitem class="username">root</systemitem> user:</para>
123
124<screen role="nodump/"><userinput>make -C contrib/<replaceable>&lt;SUBDIR-NAME&gt;</replaceable> install</userinput></screen>
125
126 <para><emphasis>If you only intend to use
127 <application>PostgreSQL</application> as a client to connect to a server on
128 another machine, your installation is complete and you should not run the
129 remaining commands.</emphasis></para>
130
131 <!-- 'Upgrading' seems to only ever exist in the docs for *previous* version -->
132 <!-- Obsolete: only if upgrading for versions prior to 9 <note>
133 <para>If you are upgrading an existing system and are going to install
134 the new files over the old ones, then you should back up your data, shut
135 down the old server and follow the instructions in <ulink
136 url="http://www.postgresql.org/docs/9.0/static/install-upgrading.html">the
137 official <application>PostgreSQL</application> documentation</ulink>.</para>
138 </note>-->
139
140 <para>Initialize a database cluster with the following commands issued by the
141 <systemitem class="username">root</systemitem> user:</para>
142
143<screen role="root"><userinput>install -v -dm700 /srv/pgsql/data &amp;&amp;
144install -v -dm755 /run/postgresql &amp;&amp;
145groupadd -g 41 postgres &amp;&amp;
146useradd -c "PostgreSQL Server" -g postgres -d /srv/pgsql/data \
147 -u 41 postgres &amp;&amp;
148chown -Rv postgres:postgres /srv/pgsql /run/postgresql &amp;&amp;
149su - postgres -c '/usr/bin/initdb -D /srv/pgsql/data'</userinput></screen>
150
151 <para>As the <systemitem class="username">root</systemitem> user, start the
152 database server with the following command:</para>
153
154<screen role="root"><userinput>su - postgres -c '/usr/bin/postgres -D /srv/pgsql/data > \
155 /srv/pgsql/data/logfile 2&gt;&amp;1 &amp;'</userinput></screen>
156
157 <para>Still as user <systemitem class="username">root</systemitem>, create
158 a database and verify the installation:</para>
159
160<screen role="root"><userinput>su - postgres -c '/usr/bin/createdb test' &amp;&amp;
161echo "create table t1 ( name varchar(20), state_province varchar(20) );" \
162 | (su - postgres -c '/usr/bin/psql test ') &amp;&amp;
163echo "insert into t1 values ('Billy', 'NewYork');" \
164 | (su - postgres -c '/usr/bin/psql test ') &amp;&amp;
165echo "insert into t1 values ('Evanidus', 'Quebec');" \
166 | (su - postgres -c '/usr/bin/psql test ') &amp;&amp;
167echo "insert into t1 values ('Jesse', 'Ontario');" \
168 | (su - postgres -c '/usr/bin/psql test ') &amp;&amp;
169echo "select * from t1;" | (su - postgres -c '/usr/bin/psql test')</userinput></screen>
170
171 </sect2>
172
173 <sect2 role="commands">
174 <title>Command Explanations</title>
175
176 <para>
177 <command>sed -i ...</command>: This sed changes server socket location
178 from <filename class="directory">/tmp</filename> to
179 <filename class="directory">/run/postgresql</filename><!-- and fix up the
180 regression tests to use <filename class="directory">/tmp</filename> so
181 that they can work reliably-->.
182 </para>
183
184 <para><parameter>--docdir=/usr/share/doc/postgresql-&postgresql-version;</parameter>:
185 This switch puts the documentation in a versioned directory.</para>
186
187 <para><parameter>--enable-thread-safety</parameter>: This switch makes the
188 client libraries thread-safe by allowing concurrent threads in
189 <filename class="libraryfile">libpq</filename> and ECPG programs to safely
190 control their private connection handles.</para>
191
192 <para><option>--with-openssl</option>: build with support for
193 <application>OpenSSL</application> encrypted connections.</para>
194
195 <para><option>--with-perl</option>: build the PL/Perl server-side language.
196 </para>
197
198 <para><option>--with-python</option>: build the PL/Python server-side
199 language.</para>
200
201 <para><option>--with-tcl</option>: build the PL/Tcl server-side language.</para>
202
203 <para><command>groupadd ...</command>; <command>useradd ...</command>:
204 These commands add an unprivileged user and group to run the database
205 server.</para>
206
207 <para><command>createdb test; create table t1; insert into t1 values...;
208 select * from t1</command>: Create a database, add a table to it, insert
209 some rows into the table and select them to verify that the installation
210 is working properly.</para>
211
212 </sect2>
213
214 <sect2 role="configuration">
215 <title>Configuring PostgreSQL</title>
216
217 <sect3 id="postgresql-config">
218 <title>Config Files</title>
219
220 <para><filename>$PGDATA/pg_ident.con</filename>,
221 <filename>$PGDATA/pg_hba.conf</filename> and
222 <filename>$PGDATA/postgresql.conf</filename></para>
223
224 <indexterm zone="postgresql postgresql-config">
225 <primary sortas="e-A.PGDATA-pg_ident.con">$PGDATA/pg_indent.con</primary>
226 </indexterm>
227
228 <indexterm zone="postgresql postgresql-config">
229 <primary sortas="e-A.PGDATA-pg_hba.conf">$PGDATA/pg_hba_conf</primary>
230 </indexterm>
231
232 <indexterm zone="postgresql postgresql-config">
233 <primary sortas="e-A.PGDATA-postgresql.conf">$PGDATA/postgresql.conf</primary>
234 </indexterm>
235
236 <para>The <envar>PGDATA</envar> environment variable is used to
237 distinguish database clusters from one another by setting it to
238 the value of the directory which contains the cluster desired.
239 The three configuration files exist in every <filename
240 class="directory">PGDATA/</filename> directory. Details on the
241 format of the files and the options that can be set in each can
242 be found in <ulink
243 url="file:///usr/share/doc/postgresql-&postgresql-version;/html/index.html"/>.</para>
244
245 </sect3>
246
247 <sect3 id="postgresql-init">
248 <title>Systemd Units</title>
249
250 <para>
251 To start the <command>postgresql</command> daemon at boot,
252 install the systemd unit from the <xref linkend="bootscripts"/>
253 package by running the following command as the
254 <systemitem class="username">root</systemitem> user:
255 </para>
256
257 <indexterm zone="postgresql postgresql-init">
258 <primary sortas="f-postgresql">postgresql</primary>
259 </indexterm>
260
261<screen role="root"><userinput>make install-postgresql</userinput></screen>
262
263 </sect3>
264
265 </sect2>
266
267 <sect2 role="content">
268 <title>Contents</title>
269
270 <segmentedlist>
271 <segtitle>Installed Programs</segtitle>
272 <segtitle>Installed Libraries</segtitle>
273 <segtitle>Installed Directories</segtitle>
274
275 <seglistitem>
276 <seg>
277 clusterdb, createdb, createlang, createuser, dropdb, droplang,
278 dropuser, ecpg, initdb, pg_archivecleanup, pg_basebackup, pg_config,
279 pg_controldata, pg_ctl, pg_dump, pg_dumpall, pg_isready,
280 pg_receivexlog, pg_recvlogical, pg_resetxlog, pg_restore, pg_rewind,
281 pg_test_fsync, pg_test_timing, pg_upgrade, pg_xlogdump, pgbench,
282 pltcl_delmod, pltcl_listmod, pltcl_loadmod, postgres, postmaster
283 (deprecated), psql, reindexdb, vacuumdb, and optionally (in contrib/)
284 oid2name, pg_standby, vacuumlo, and many others
285 </seg>
286 <seg>
287 libecpg.{so,a}, libecpg_compat.{so,a}, libpgcommon.a, libpgport.a,
288 libpgtypes.{so,a}, libpq.{so,a}, various charset modules, and
289 optionally programming language modules under /usr/lib/postgresql
290 </seg>
291 <seg>
292 /usr/include/{libpq,postgresql},
293 /usr/lib/postgresql,
294 /usr/share/{doc/postgresql-&postgresql-version;,postgresql}, and
295 /srv/pgsql
296 </seg>
297 </seglistitem>
298 </segmentedlist>
299
300 <variablelist>
301 <bridgehead renderas="sect3">Short Descriptions</bridgehead>
302 <?dbfo list-presentation="list"?>
303 <?dbhtml list-presentation="table"?>
304
305 <varlistentry id="clusterdb">
306 <term><command>clusterdb</command></term>
307 <listitem>
308 <para>is a utility for reclustering tables in a
309 <application>PostgreSQL</application> database.</para>
310 <indexterm zone="postgresql clusterdb">
311 <primary sortas="b-clusterdb">clusterdb</primary>
312 </indexterm>
313 </listitem>
314 </varlistentry>
315
316 <varlistentry id="createdb">
317 <term><command>createdb</command></term>
318 <listitem>
319 <para> creates a new <application>PostgreSQL</application>
320 database.</para>
321 <indexterm zone="postgresql createdb">
322 <primary sortas="b-createdb">createdb</primary>
323 </indexterm>
324 </listitem>
325 </varlistentry>
326
327 <varlistentry id="createlang">
328 <term><command>createlang</command></term>
329 <listitem>
330 <para>defines a new <application>PostgreSQL</application> procedural
331 language.</para>
332 <indexterm zone="postgresql createlang">
333 <primary sortas="b-createlang">createlang</primary>
334 </indexterm>
335 </listitem>
336 </varlistentry>
337
338 <varlistentry id="createuser">
339 <term><command>createuser</command></term>
340 <listitem>
341 <para>defines a new <application>PostgreSQL</application>
342 user account.</para>
343 <indexterm zone="postgresql createuser">
344 <primary sortas="b-createuser">createuser</primary>
345 </indexterm>
346 </listitem>
347 </varlistentry>
348
349 <varlistentry id="dropdb">
350 <term><command>dropdb</command></term>
351 <listitem>
352 <para>removes a <application>PostgreSQL</application> database.</para>
353 <indexterm zone="postgresql dropdb">
354 <primary sortas="b-dropdb">dropdb</primary>
355 </indexterm>
356 </listitem>
357 </varlistentry>
358
359 <varlistentry id="droplang">
360 <term><command>droplang</command></term>
361 <listitem>
362 <para>removes a <application>PostgreSQL</application> procedural
363 language.</para>
364 <indexterm zone="postgresql droplang">
365 <primary sortas="b-droplang">droplang</primary>
366 </indexterm>
367 </listitem>
368 </varlistentry>
369
370 <varlistentry id="dropuser">
371 <term><command>dropuser</command></term>
372 <listitem>
373 <para>removes a <application>PostgreSQL</application>
374 user account.</para>
375 <indexterm zone="postgresql dropuser">
376 <primary sortas="b-dropuser">dropuser</primary>
377 </indexterm>
378 </listitem>
379 </varlistentry>
380
381 <varlistentry id="ecpg">
382 <term><command>ecpg</command></term>
383 <listitem>
384 <para>is the embedded SQL preprocessor.</para>
385 <indexterm zone="postgresql ecpg">
386 <primary sortas="b-ecpg">ecpg</primary>
387 </indexterm>
388 </listitem>
389 </varlistentry>
390
391 <varlistentry id="initdb">
392 <term><command>initdb</command></term>
393 <listitem>
394 <para>creates a new database cluster.</para>
395 <indexterm zone="postgresql initdb">
396 <primary sortas="b-initdb">initdb</primary>
397 </indexterm>
398 </listitem>
399 </varlistentry>
400
401 <varlistentry id="oid2name">
402 <term><command>oid2name</command></term>
403 <listitem>
404 <para>resolves OIDs (Object IDs) and file nodes in a PostgreSQL data
405 directory.</para>
406 <indexterm zone="postgresql oid2name">
407 <primary sortas="b-oid2name">oid2name</primary>
408 </indexterm>
409 </listitem>
410 </varlistentry>
411
412 <varlistentry id="pg_archivecleanup">
413 <term><command>pg_archivecleanup</command></term>
414 <listitem>
415 <para>clean up PostgreSQL WAL (write-ahead log) archive files.</para>
416 <indexterm zone="postgresql pg_archivecleanup">
417 <primary sortas="b-pg_archivecleanup">pg_archivecleanup</primary>
418 </indexterm>
419 </listitem>
420 </varlistentry>
421
422 <varlistentry id="pg_basebackup">
423 <term><command>pg_basebackup</command></term>
424 <listitem>
425 <para>takes base backups of a running
426 <application>PostgreSQL</application> cluster.</para>
427 <indexterm zone="postgresql pg_basebackup">
428 <primary sortas="b-pg_basebackup">pg_basebackup</primary>
429 </indexterm>
430 </listitem>
431 </varlistentry>
432
433 <varlistentry id="pg_config">
434 <term><command>pg_config</command></term>
435 <listitem>
436 <para>retrieves <application>PostgreSQL</application> version
437 information.</para>
438 <indexterm zone="postgresql pg_config">
439 <primary sortas="b-pg_config">pg_config</primary>
440 </indexterm>
441 </listitem>
442 </varlistentry>
443
444 <varlistentry id="pg_controldata">
445 <term><command>pg_controldata</command></term>
446 <listitem>
447 <para>returns information initialized during
448 <command>initdb</command>, such as the catalog version and server
449 locale.</para>
450 <indexterm zone="postgresql pg_controldata">
451 <primary sortas="b-pg_controldata">pg_controldata</primary>
452 </indexterm>
453 </listitem>
454 </varlistentry>
455
456 <varlistentry id="pg_ctl">
457 <term><command>pg_ctl</command></term>
458 <listitem>
459 <para>controls stopping and starting the database server.</para>
460 <indexterm zone="postgresql pg_ctl">
461 <primary sortas="b-pg_ctl">pg_ctl</primary>
462 </indexterm>
463 </listitem>
464 </varlistentry>
465
466 <varlistentry id="pg_dump">
467 <term><command>pg_dump</command></term>
468 <listitem>
469 <para>dumps database data and metadata into scripts which are used
470 to recreate the database.</para>
471 <indexterm zone="postgresql pg_dump">
472 <primary sortas="b-pg_dump">pg_dump</primary>
473 </indexterm>
474 </listitem>
475 </varlistentry>
476
477 <varlistentry id="pg_dumpall">
478 <term><command>pg_dumpall</command></term>
479 <listitem>
480 <para>recursively calls <command>pg_dump</command> for each
481 database in a cluster.</para>
482 <indexterm zone="postgresql pg_dumpall">
483 <primary sortas="b-pg_dumpall">pg_dumpall</primary>
484 </indexterm>
485 </listitem>
486 </varlistentry>
487
488 <varlistentry id="pg_isready">
489 <term><command>pg_isready</command></term>
490 <listitem>
491 <para>check the connection status of a PostgreSQL server.</para>
492 <indexterm zone="postgresql pg_isready">
493 <primary sortas="b-pg_isready">pg_isready</primary>
494 </indexterm>
495 </listitem>
496 </varlistentry>
497
498 <varlistentry id="pg_receivexlog">
499 <term><command>pg_receivexlog</command></term>
500 <listitem>
501 <para>
502 is used to stream transaction log from a running
503 PostgreSQL cluster.
504 </para>
505 <indexterm zone="postgresql pg_receivexlog">
506 <primary sortas="b-pg_receivexlog">pg_receivexlog</primary>
507 </indexterm>
508 </listitem>
509 </varlistentry>
510
511 <varlistentry id="pg_recvlogical">
512 <term><command>pg_recvlogical</command></term>
513 <listitem>
514 <para>controls PostgreSQL logical decoding streams.</para>
515 <indexterm zone="postgresql pg_recvlogical">
516 <primary sortas="b-pg_recvlogical">pg_recvlogical</primary>
517 </indexterm>
518 </listitem>
519 </varlistentry>
520
521 <varlistentry id="pg_resetxlog">
522 <term><command>pg_resetxlog</command></term>
523 <listitem>
524 <para>clears the write-ahead log and optionally resets some
525 fields in the <filename>pg_control</filename> file.</para>
526 <indexterm zone="postgresql pg_resetxlog">
527 <primary sortas="b-pg_resetxlog">pg_resetxlog</primary>
528 </indexterm>
529 </listitem>
530 </varlistentry>
531
532 <varlistentry id="pg_restore">
533 <term><command>pg_restore</command></term>
534 <listitem>
535 <para>creates databases from dump files created by
536 <command>pg_dump</command>.</para>
537 <indexterm zone="postgresql pg_restore">
538 <primary sortas="b-pg_restore">pg_restore</primary>
539 </indexterm>
540 </listitem>
541 </varlistentry>
542
543 <varlistentry id="pg_rewind">
544 <term><command>pg_rewind</command></term>
545 <listitem>
546 <para>synchronizes a PostgreSQL data directory with another data
547 directory that was forked from the first one.</para>
548 <indexterm zone="postgresql pg_rewind">
549 <primary sortas="b-pg_rewind">pg_rewind</primary>
550 </indexterm>
551 </listitem>
552 </varlistentry>
553
554 <varlistentry id="pg_standby">
555 <term><command>pg_standby</command></term>
556 <listitem>
557 <para>supports the creation of a PostgreSQL warm standby
558 server.</para>
559 <indexterm zone="postgresql pg_standby">
560 <primary sortas="b-pg_standby">pg_standby</primary>
561 </indexterm>
562 </listitem>
563 </varlistentry>
564
565 <varlistentry id="pg_test_fsync">
566 <term><command>pg_test_fsync</command></term>
567 <listitem>
568 <para>determine fastest wal_sync method for PostgreSQL.</para>
569 <indexterm zone="postgresql pg_test_fsync">
570 <primary sortas="b-pg_test_fsync">pg_test_fsync</primary>
571 </indexterm>
572 </listitem>
573 </varlistentry>
574
575 <varlistentry id="pg_test_timing">
576 <term><command>pg_test_timing</command></term>
577 <listitem>
578 <para>measure timing overhead.</para>
579 <indexterm zone="postgresql pg_test_timing">
580 <primary sortas="b-pg_test_timing">pg_test_timing</primary>
581 </indexterm>
582 </listitem>
583 </varlistentry>
584
585 <varlistentry id="pg_upgrade">
586 <term><command>pg_upgrade</command></term>
587 <listitem>
588 <para>upgrade a PostgreSQL server instance.</para>
589 <indexterm zone="postgresql pg_upgrade">
590 <primary sortas="b-pg_upgrade">pg_upgrade</primary>
591 </indexterm>
592 </listitem>
593 </varlistentry>
594
595 <varlistentry id="pg_xlogdump">
596 <term><command>pg_xlogdump</command></term>
597 <listitem>
598 <para>display a human-readable rendering of the write-ahead log of a
599 PostgreSQL database cluster.</para>
600 <indexterm zone="postgresql pg_xlogdump">
601 <primary sortas="b-pg_xlogdump">pg_xlogdump</primary>
602 </indexterm>
603 </listitem>
604 </varlistentry>
605
606 <varlistentry id="pgbench">
607 <term><command>pgbench</command></term>
608 <listitem>
609 <para>run a benchmark test on PostgreSQL.</para>
610 <indexterm zone="postgresql pgbench">
611 <primary sortas="b-pgbench">pgbench</primary>
612 </indexterm>
613 </listitem>
614 </varlistentry>
615
616 <varlistentry id="pltcl_delmod">
617 <term><command>pltcl_delmod</command></term>
618 <listitem>
619 <para>is a support script used to delete a module from a
620 PL/<application>Tcl</application> table. The command
621 requires the <ulink
622 url="http://flightaware.github.io/Pgtcl/">Pgtcl</ulink>
623 package to be installed also.</para>
624 <indexterm zone="postgresql pltcl_delmod">
625 <primary sortas="b-pltcl_delmod">pltcl_delmod</primary>
626 </indexterm>
627 </listitem>
628 </varlistentry>
629
630 <varlistentry id="pltcl_listmod">
631 <term><command>pltcl_listmod</command></term>
632 <listitem>
633 <para>is a support script used to list the modules in a
634 PL/<application>Tcl</application> table. The command
635 requires the <ulink
636 url="http://gborg.postgresql.org/project/pgtcl/">Pgtcl</ulink>
637 package to be installed also.</para>
638 <indexterm zone="postgresql pltcl_listmod">
639 <primary sortas="b-pltcl_listmod">pltcl_listmod</primary>
640 </indexterm>
641 </listitem>
642 </varlistentry>
643
644 <varlistentry id="pltcl_loadmod">
645 <term><command>pltcl_loadmod</command></term>
646 <listitem>
647 <para>is a support script used to load a module into a
648 PL/<application>Tcl</application> table. The command
649 requires the <ulink
650 url="http://gborg.postgresql.org/project/pgtcl/">Pgtcl</ulink>
651 package to be installed also.</para>
652 <indexterm zone="postgresql pltcl_loadmod">
653 <primary sortas="b-pltcl_loadmod">pltcl_loadmod</primary>
654 </indexterm>
655 </listitem>
656 </varlistentry>
657
658 <varlistentry id="postgres">
659 <term><command>postgres</command></term>
660 <listitem>
661 <para>is the PostgreSQL database server.</para>
662 <indexterm zone="postgresql postgres">
663 <primary sortas="b-postgres">postgres</primary>
664 </indexterm>
665 </listitem>
666 </varlistentry>
667
668 <varlistentry id="postmaster">
669 <term><command>postmaster</command></term>
670 <listitem>
671 <para>(deprecated, a symlink to <command>postgres</command>) is a
672 multi-user database daemon.</para>
673 <indexterm zone="postgresql postmaster">
674 <primary sortas="b-postmaster">postmaster</primary>
675 </indexterm>
676 </listitem>
677 </varlistentry>
678
679 <varlistentry id="psql">
680 <term><command>psql</command></term>
681 <listitem>
682 <para>is a console based database shell.</para>
683 <indexterm zone="postgresql psql">
684 <primary sortas="b-psql">psql</primary>
685 </indexterm>
686 </listitem>
687 </varlistentry>
688
689 <varlistentry id="reindexdb">
690 <term><command>reindexdb</command></term>
691 <listitem>
692 <para>is a utility for rebuilding indexes in a database.</para>
693 <indexterm zone="postgresql reindexdb">
694 <primary sortas="b-reindexdb">reindexdb</primary>
695 </indexterm>
696 </listitem>
697 </varlistentry>
698
699 <varlistentry id="vacuumdb">
700 <term><command>vacuumdb</command></term>
701 <listitem>
702 <para>compacts databases and generates statistics for the query
703 analyzer.</para>
704 <indexterm zone="postgresql vacuumdb">
705 <primary sortas="b-vacuumdb">vacuumdb</primary>
706 </indexterm>
707 </listitem>
708 </varlistentry>
709
710 <varlistentry id="vacuumlo">
711 <term><command>vacuumlo</command></term>
712 <listitem>
713 <para>remove orphaned large objects from a PostgreSQL database.</para>
714 <indexterm zone="postgresql vacuumlo">
715 <primary sortas="b-vacuumlo">vacuumlo</primary>
716 </indexterm>
717 </listitem>
718 </varlistentry>
719
720 <varlistentry id="libecpg">
721 <term><filename class='libraryfile'>libecpg.{so,a}</filename></term>
722 <listitem>
723 <para>contains functions to support embedded SQL in C programs.</para>
724 <indexterm zone="postgresql libecpg">
725 <primary sortas="c-libecpg">libecpg.{so,a}</primary>
726 </indexterm>
727 </listitem>
728 </varlistentry>
729
730 <varlistentry id="libecpg_compat">
731 <term><filename class='libraryfile'>libecpg_compat.{so,a}</filename></term>
732 <listitem>
733 <para>is the ecpg compatibility library.</para>
734 <indexterm zone="postgresql libecpg_compat">
735 <primary sortas="c-libecpg_compat">libecpg_compat.{so,a}</primary>
736 </indexterm>
737 </listitem>
738 </varlistentry>
739
740 <varlistentry id="libgport">
741 <term><filename class='libraryfile'>libgport.a</filename></term>
742 <listitem>
743 <para>is the port-specific subsystem of the Postgres backend.</para>
744 <indexterm zone="postgresql libgport">
745 <primary sortas="c-libgport">libgport.a</primary>
746 </indexterm>
747 </listitem>
748 </varlistentry>
749
750 <varlistentry id="libpgtypes">
751 <term><filename class='libraryfile'>libpgtypes.{so,a}</filename></term>
752 <listitem>
753 <para>contains functions for dealing with Postgres data types.</para>
754 <indexterm zone="postgresql libpgtypes">
755 <primary sortas="c-libpgtypes">libpgtypes.{so,a}</primary>
756 </indexterm>
757 </listitem>
758 </varlistentry>
759
760 <varlistentry id="libpq">
761 <term><filename class='libraryfile'>libpq.{so,a}</filename></term>
762 <listitem>
763 <para>is the C programmer's API to Postgres.</para>
764 <indexterm zone="postgresql libpq">
765 <primary sortas="c-libpq">libpq.{so,a}</primary>
766 </indexterm>
767 </listitem>
768 </varlistentry>
769
770 </variablelist>
771
772 </sect2>
773
774</sect1>
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