mirror of https://github.com/postgres/postgres
FAQ updates --- This is a small cosmetic patch that adds pt_BR IRC
channel to the lists of IRC channels, fixes a typo in the OID's question, and corrects the PGCluster's project name. Euler Taveira de Oliveira
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doc/FAQ
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doc/FAQ
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Frequently Asked Questions (FAQ) for PostgreSQL
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Last updated: Mon Oct 9 20:28:14 EDT 2006
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Last updated: Sat Oct 14 19:08:19 EDT 2006
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Current maintainer: Bruce Momjian (bruce@momjian.us)
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The major IRC channel is #postgresql on Freenode (irc.freenode.net).
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To connect you can use the Unix program irc -c '#postgresql' "$USER"
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irc.freenode.net or use any other IRC clients. A Spanish one also
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exists on the same network, (#postgresql-es), and a French one,
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(#postgresqlfr). There is also a PostgreSQL channel on EFNet.
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exists on the same network, (#postgresql-es), a French one,
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(#postgresqlfr), and a Brazilian one, (#postgresql-br). There is also
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a PostgreSQL channel on EFNet.
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A list of commercial support companies is available at
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http://www.postgresql.org/support/professional_support.
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overflow at 4 billion, and then the OIDs start being duplicated.
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PostgreSQL uses OIDs to link its internal system tables together.
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To uniquely number columns in user tables, it is best to use SERIAL
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To uniquely number rows in user tables, it is best to use SERIAL
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rather than OIDs because SERIAL sequences are unique only within a
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single table. and are therefore less likely to overflow. SERIAL8 is
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available for storing eight-byte sequence values.
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Multi-master replication allows read/write queries to be sent to
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multiple replicated computers. This capability also has a severe
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impact on performance due to the need to synchronize changes between
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servers. Pgcluster is the most popular such solution freely available
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servers. PGCluster is the most popular such solution freely available
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for PostgreSQL.
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There are also commercial and hardware-based replication solutions
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alink="#0000ff">
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<H1>Frequently Asked Questions (FAQ) for PostgreSQL</H1>
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<P>Last updated: Mon Oct 9 20:28:14 EDT 2006</P>
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<P>Last updated: Sat Oct 14 19:08:19 EDT 2006</P>
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<P>Current maintainer: Bruce Momjian (<A href=
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"mailto:bruce@momjian.us">bruce@momjian.us</A>)
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(<I>irc.freenode.net</I>). To connect you can use the Unix
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program <CODE>irc -c '#postgresql' "$USER" irc.freenode.net</CODE>
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or use any other IRC clients. A Spanish one also exists
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on the same network, (<I>#postgresql-es</I>), and a French one,
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(<I>#postgresqlfr</I>). There is also a PostgreSQL channel on EFNet.</P>
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on the same network, (<I>#postgresql-es</I>), a French one,
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(<I>#postgresqlfr</I>), and a Brazilian one, (<I>#postgresql-br</I>).
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There is also a PostgreSQL channel on EFNet.</P>
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<P>A list of commercial support companies is available at <A href=
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"http://www.postgresql.org/support/professional_support">
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@ -963,7 +964,7 @@ length</TD></TR>
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being duplicated. PostgreSQL uses <SMALL>OID</SMALL>s to link its
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internal system tables together.</P>
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<P>To uniquely number columns in user tables, it is best to use
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<P>To uniquely number rows in user tables, it is best to use
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<SMALL>SERIAL</SMALL> rather than O<SMALL>ID</SMALL>s because
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<SMALL>SERIAL</SMALL> sequences are unique only within a single
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table. and are therefore less likely to overflow.
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<P>Multi-master replication allows read/write queries to be sent to
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multiple replicated computers. This capability also has a severe impact
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on performance due to the need to synchronize changes between servers.
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<A href="http://pgfoundry.org/projects/pgcluster/">Pgcluster</a> is the
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<A href="http://pgfoundry.org/projects/pgcluster/">PGCluster</a> is the
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most popular such solution freely available for PostgreSQL.</P>
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<P>There are also commercial and hardware-based replication solutions
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