On 07/05/2016 07:54 AM, J. Cassidy 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).
Your considered opinions would be much appreciated.
https://www.postgresql.org/docs/9.5/static/app-pgdump.html
"
-F format
--format=format
Selects the format of the output. format can be one of the following:
p
plain
Output a plain-text SQL script file (the default).
"
......
In line tag:
"-Z 0..9
--compress=0..9
Specify the compression level to use. Zero means no compression.
For the custom archive format, this specifies compression of individual
table-data segments, and the default is to compress at a moderate level.
<* SEE HERE For plain text output, setting a nonzero compression level
causes the entire output file to be compressed, as though it had been
fed through gzip; but the default is not to compress. SEE HERE *> The
tar archive format currently does not support compression at all.
"
Regards,
Henk
--
Adrian Klaver
adrian.klaver@xxxxxxxxxxx
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