On 07/05/2016 10:54 AM, David G. Johnston wrote:
> On Tue, Jul 5, 2016 at 10:54 AM, J. Cassidy <sean(at)jdcassidy(dot)eu
> <mailto:sean(at)jdcassidy(dot)eu>>wrote:
>
> Hello all,
>
> I have hopefully an "easy" question.
>
> If I issue the pg_dump command with no switches or options i.e.
>
> /usr/local/pgsql/bin/pg_dump -v dbabcd > /data3TB/Backup/dbabcd
>
> Is their any "default" compression involved or not? Does pg_dump
> talk to zlib during the dump process given that I have not
> specified any compression on the
> command line? (see above).
>
>
> In general the easiest way to answer the question of whether
> something (well, a text file at least) is compressed or not is to
> attempt to open it in a text editor - if you can read the contents
> its not compressed.
>
> Reading the Description section at the following location provides the
> answer you seek - no, there is no compression by default.
>
> https://www.postgresql.org/docs/9.5/static/app-pgdump.html
> David J.
>
I like the 'file' command, and now the MS is shipping bash, it should be
available to all.