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New FAQ's.
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doc/FAQ
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doc/FAQ
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Frequently Asked Questions (FAQ) for Postgres95
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Last updated: Fri Sep 27 17:48:23 EDT 1996
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Last updated: Mon Oct 14 08:05:23 EDT 1996
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Version: 2.0
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Current maintainer: Bruce Momjian (maillist@candle.pha.pa.us)
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@ -8,9 +8,15 @@ Current maintainer: Bruce Momjian (maillist@candle.pha.pa.us)
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The most recent version of this document can be viewed at the postgres95 Web
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site, http://www.ki.net/postgres95.
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Linux-specific questions are answered in
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http://www.ki.net/postgres95/docs/FAQ-Linux.phtml.
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Irix-specific questions are answered in
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http://www.ki.net/postgres95/docs/FAQ-Irix.phtml.
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Changes in this version (* = modified, + = new):
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* *3.23) How do I create a serial field?
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* *3.41) What is the meaning of some of the terms used in Postgres?
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----------------------------------------------------------------------------
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@ -241,7 +247,7 @@ home page at:
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1.6) Latest release of Postgres95
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The latest release of postgres95 is version 1.07.
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The latest release of postgres95 is version 1.08.
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1.7) Is there a commercial version of Postgres95?
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@ -277,7 +283,7 @@ eventually we can also add the missing features listed above.
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1.10) Does Postgres95 work with databases from earlier versions of postgres?
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Postgres95 v1.07 is compatible with databases created with v1.01. Those
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Postgres95 v1.08 is compatible with databases created with v1.01. Those
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upgrading from 1.0 should read the directions in the MIGRATION_1.0_TO_1.02
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directory.
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@ -546,7 +552,7 @@ sending a mail to:
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* majordomo@listserv.direct.net
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OpenLink ODBC is currently in beta under Linux. You can get it from
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http://www.openlinksw.com/postgre s.html. It works with our standard ODBC
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http://www.openlinksw.com/postgres.html. It works with our standard ODBC
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client software so you'll have Postgres ODBC available on every client
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platform we support (Win, Mac, Unix, VMS).
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@ -626,8 +632,8 @@ Place the word 'EXPLAIN' at the beginning of the query, for example:
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Postgres does not allow the user to specifiy a user column as type SERIAL.
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Instead, you can use each row's oid field as a unique value. However, if you
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need to dump and reload the database, you need to be using postgres version
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1.07 or 2.* with pgdump's -o option or COPY's WITH OIDS option to preserver
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the oids.
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1.07 or later or 2.* with pgdump's -o option or COPY's WITH OIDS option to
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preserver the oids.
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Another valid way of doing this is to create a function:
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@ -771,7 +777,8 @@ INSERTed rows get a timestamp too, so rows that were not in the table at the
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desired time will not appear.
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Vacuum removes rows that are no longer current. This time-warp feature is
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used by the engine for rollback and crash recovery.
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used by the engine for rollback and crash recovery. Expiration times can be
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set with purge.
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3.38) How do I tune the database engine for better performance?
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@ -852,6 +859,8 @@ common usage. Here are some:
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* retrieve, select
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* replace, update
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* oid, serial value
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* portal, cursor
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* range variable, table name, table alias
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Please let me know if you think of any more.
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