Frequently Asked Questions (FAQ) for PostgreSQL
- Last updated: Fri Jun 2 11:32:13 EDT 2000
+ Last updated: Wed Jul 26 13:33:21 EDT 2000
Current maintainer: Bruce Momjian (pgman@candle.pha.pa.us)
The most recent version of this document can be viewed at
http://www.PostgreSQL.org/docs/faq-english.html.
- Linux-specific questions are answered in
- http://www.PostgreSQL.org/docs/faq-linux.html.
-
- HPUX-specific questions are answered in
- http://www.PostgreSQL.org/docs/faq-hpux.html.
-
- Solaris-specific questions are answered in
- http://www.PostgreSQL.org/docs/faq-solaris.html.
-
- Irix-specific questions are answered in
- http://www.PostgreSQL.org/docs/faq-irix.html.
+ Platform-specific questions are answered at
+ http://www.PostgreSQL.org/docs/.
_________________________________________________________________
General Questions
4.11) What is an R-tree index?
4.12) What is Genetic Query Optimization?
4.13) How do I do regular expression searches and case-insensitive
- regular expression searching?
+ regular expression searches?
4.14) In a query, how do I detect if a field is NULL?
4.15) What is the difference between the various character types?
4.16.1) How do I create a serial/auto-incrementing field?
replaces the PostQuel query language with an extended subset of SQL.
PostgreSQL is free and the complete source is available.
- PostgreSQL development is being performed by a team of Internet
- developers who all subscribe to the PostgreSQL development mailing
- list. The current coordinator is Marc G. Fournier
- (scrappy@PostgreSQL.org). (See below on how to join). This team is now
- responsible for all development of PostgreSQL.
+ PostgreSQL development is performed by a team of Internet developers
+ who all subscribe to the PostgreSQL development mailing list. The
+ current coordinator is Marc G. Fournier (scrappy@PostgreSQL.org). (See
+ below on how to join). This team is now responsible for all
+ development of PostgreSQL.
The authors of PostgreSQL 1.01 were Andrew Yu and Jolly Chen. Many
others have contributed to the porting, testing, debugging and
1.6) Where can I get support?
- There is no official support for PostgreSQL from the University of
- California, Berkeley. It is maintained through volunteer effort.
+ There is no support for PostgreSQL from the University of California,
+ Berkeley. It is maintained through volunteer effort.
The main mailing list is: pgsql-general@PostgreSQL.org. It is
available for discussion of matters pertaining to PostgreSQL. To
For web integration, PHP is an excellent interface. It is at
http://www.php.net
- PHP is great for simple stuff, but for more complex cases, many use
- the perl interface and CGI.pm.
+ For complex cases, many use the perl interface and CGI.pm.
A WWW gateway based on WDB using perl can be downloaded from
http://www.eol.ists.ca/~dunlop/wdb-p95
2.4) What languages are available to communicate with PostgreSQL?
We have:
- * C(libpq)
- * C++(libpq++)
- * Embedded C(ecpg)
- * Java(jdbc)
- * Perl(perl5)
- * ODBC(odbc)
- * Python(PyGreSQL)
- * TCL(libpgtcl)
- * C Easy API(libpgeasy)
+ * C (libpq)
+ * C++ (libpq++)
+ * Embedded C (ecpg)
+ * Java (jdbc)
+ * Perl (perl5)
+ * ODBC (odbc)
+ * Python (PyGreSQL)
+ * TCL (libpgtcl)
+ * C Easy API (libpgeasy)
* Embedded HTML (PHP from http://www.php.net)
_________________________________________________________________
requires more space than the backend's -S parameter allows, then
temporary files are created to hold the extra data.
- The temp files should be deleted automatically, but might not if a
- backend crashes during a sort. If you have no backends running at the
- time, it is safe to delete the pg_tempNNN.NN files.
+ The temporary files should be deleted automatically, but might not if
+ a backend crashes during a sort. If you have no backends running at
+ the time, it is safe to delete the pg_tempNNN.NN files.
_________________________________________________________________
Operational Questions
join queries through non-exhaustive search.
4.13) How do I do regular expression searches and case-insensitive regular
- expression searching?
+ expression searches?
The ~ operator does regular-expression matching, and ~* does
case-insensitive regular-expression matching. There is no
Frequently Asked Questions (FAQ) for PostgreSQL
</H1>
<P>
-Last updated: Fri Jun 2 11:32:13 EDT 2000
+Last updated: Wed Jul 26 13:33:21 EDT 2000
<P>
Current maintainer: Bruce Momjian (<A
HREF="mailto:pgman@candle.pha.pa.us">pgman@candle.pha.pa.us</A>)<BR><P>
<A HREF="http://www.Postgresql.org/docs/faq-english.html">
http://www.PostgreSQL.org/docs/faq-english.html</A>.<P>
-Linux-specific questions are answered in <A
-HREF="http://www.PostgreSQL.org/docs/faq-linux.html">http://www.PostgreSQL.org/docs/faq-linux.html</A>.<P>
-
-HPUX-specific questions are answered in <A
-HREF="http://www.PostgreSQL.org/docs/faq-hpux.html">http://www.PostgreSQL.org/docs/faq-hpux.html</A>.<P>
-
-Solaris-specific questions are answered in <A
-HREF="http://www.PostgreSQL.org/docs/faq-solaris.html">http://www.PostgreSQL.org/docs/faq-solaris.html</A>.<P>
-
-Irix-specific questions are answered in <A
-HREF="http://www.PostgreSQL.org/docs/faq-irix.html">http://www.PostgreSQL.org/docs/faq-irix.html</A>.<P>
+Platform-specific questions are answered at <A
+HREF="http://www.PostgreSQL.org/docs/">http://www.PostgreSQL.org/docs/</A>.<P>
<HR><P>
<A HREF="#4.12">4.12</A>) What is Genetic Query Optimization?<BR>
<A HREF="#4.13">4.13</A>) How do I do regular expression searches
-and case-insensitive regular expression searching?<BR>
+and case-insensitive regular expression searches?<BR>
<A HREF="#4.14">4.14</A>) In a query, how do I detect if a field
is NULL?<BR>
<A HREF="#4.15">4.15</A>) What is the difference between the
PostQuel query language with an extended subset of SQL. PostgreSQL is
free and the complete source is available.<P>
-PostgreSQL development is being performed by a team of Internet
+PostgreSQL development is performed by a team of Internet
developers who all subscribe to the PostgreSQL development mailing list.
The current coordinator is Marc G. Fournier (<A
HREF="mailto:scrappy@PostgreSQL.org">scrappy@PostgreSQL.org</A>). (See
<H4><A NAME="1.4">1.4</A>) What non-unix ports are available?</H4><P>
-It is possible to compile the libpq C library, psql, and other
+It is possible to compile the <I>libpq</I> C library, psql, and other
interfaces and binaries to run on MS Windows platforms. In this case,
the client is running on MS Windows, and communicates via TCP/IP to a
server running on one of our supported Unix platforms.<P>
A file <I>win31.mak</I> is included in the distribution for making a
-Win32
libpq library and psql.<P>
+Win32
<I>libpq</I> library and psql.<P>
The database server is now working on Windows NT using the Cygnus
Unix/NT porting library. See <I>pgsql/doc/FAQ_NT</I> in the distribution.<P>
<H4><A NAME="1.6">1.6</A>) Where can I get support?</H4><P>
-There is no official support for PostgreSQL from the University of
+There is no support for PostgreSQL from the University of
California, Berkeley. It is maintained through volunteer effort.<P>
The main mailing list is: <A
For web integration, PHP is an excellent interface. It is at
<A HREF="http://www.php.net">http://www.php.net</A><P>
-PHP is great for simple stuff, but for more complex cases, many
-use the perl interface and CGI.pm.<P>
+For complex cases, many use the perl interface and CGI.pm.<P>
A WWW gateway based on WDB using perl can be downloaded from <A
HREF="http://www.eol.ists.ca/~dunlop/wdb-p95">http://www.eol.ists.ca/~dunlop/wdb-p95</A>
We have:
<UL>
-<LI>C(libpq)
-<LI>C++(libpq++)
-<LI>Embedded C(ecpg)
-<LI>Java(jdbc)
-<LI>Perl(perl5)
-<LI>ODBC(odbc)
-<LI>Python(PyGreSQL)
-<LI>TCL(libpgtcl)
-<LI>C Easy API(libpgeasy)
+<LI>C (libpq)
+<LI>C++ (libpq++)
+<LI>Embedded C (ecpg)
+<LI>Java (jdbc)
+<LI>Perl (perl5)
+<LI>ODBC (odbc)
+<LI>Python (PyGreSQL)
+<LI>TCL (libpgtcl)
+<LI>C Easy API (libpgeasy)
<LI>Embedded HTML (<A HREF="http://www.php.net">PHP from http://www.php.net</A>)
</UL><P>
the sort requires more space than the backend's <I>-S</I> parameter allows,
then temporary files are created to hold the extra data.<P>
-The temp files should be deleted automatically, but might not if a backend
+The temporary files should be deleted automatically, but might not if a backend
crashes during a sort. If you have no backends running at the time,
it is safe to delete the pg_tempNNN.NN files.<P>
non-exhaustive search.<P>
<H4><A NAME="4.13">4.13</A>) How do I do regular expression searches and
-case-insensitive regular expression search
ing?</H4><P>
+case-insensitive regular expression search
es?</H4><P>
The <I>~</I> operator does regular-expression matching, and <I>~*</I>
does case-insensitive regular-expression matching. There is no
functions to PostgreSQL?</H4><P>
-Send your extensions to the pgsql-hackers mailing list, and they will
+Send your extensions to the <I>pgsql-hackers</I> mailing list, and they will
eventually end up in the <I>contrib/</I> subdirectory.<P>
projects / postgresql / commitdiff