Re: pg_dump warning message - Mailing list pgsql-novice

From Tom Lane
Subject Re: pg_dump warning message
Date
Msg-id 12493.1081794981@sss.pgh.pa.us
Whole thread Raw
In response to pg_dump warning message  (David Rickard <David.Rickard@GTScompanies.com>)
List pgsql-novice
David Rickard <David.Rickard@GTScompanies.com> writes:
> The pg_dump switches indicate a "custom" file format, and the output file
> is a standard plain-text UNIX file.
> Nevertheless, when the export runs, it throws this warning for each
> database instance:
> pg_dump: [archiver] WARNING: requested compression not available in this
> installation - archive will be uncompressed

This indicates that you built Postgres without compression support (no zlib).
The default for -Fc format, however, is to compress, and you get this
bleat because it can't do so.  I think you can suppress the bleating by
adding "-Z 0" to the switches ... but it might be better to install zlib
and rebuild.

            regards, tom lane

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