Flat File unload/export/copy - Mailing list pgsql-novice

From Steve T
Subject Flat File unload/export/copy
Date
Msg-id 1221232573.3603.198.camel@localhost.localdomain
Whole thread Raw
Responses Re: Flat File unload/export/copy
List pgsql-novice
Is there a command that copies data from a table to a flat file for  specified selection criteria?
IE akin to a copy but not dumping a whole file?
If I'm about to do a major change to data in a table, I'd like to be able to keep a copy of the data before the change (I know I can Begin...rollback should things go wrong).

Is there a command that I've missed? (Informix had an 'UNLOAD TO blah SELECT blah..' type command which presumably was proprietary).

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