On 20/1/21 5:11 am, Ron wrote:
On 1/19/21 1:55 PM, David G. Johnston wrote:
On Tuesday, January 19, 2021, Ron <ronljohnsonjr@gmail.com> wrote:
For a project using 9.6, I have this command backing up a database:
So, for the 12 project, I copied it over, removing the "0", since I want these backups compressed.
The versions in use doesn’t seem pertinent to the observation - this behavior hasn’t changed (at least in the docs).
Since the -Z default is "6"
It is? Where do you see this?
https://www.postgresql.org/docs/12/app-pgdump.html
"-Z 0..9"
"the default is to compress at a moderate level."
It doesn't say "6", but every other bit of software I've used defaults to level 6.
A quick look at the `pg_dump` source code indicates that:
* `-Z` requires an argument, and
* the argument is converted to an integer with the `atoi()` C function
This means that `-Z` actually took `-v` as its argument, which `atoi()` converts to integer 0. That explains what you saw, and I'm also guessing you did NOT get verbose output from your second command.
Best Regards,
Adrian
