Re: PostgreSQL Database 'Information' Script - is there one out there?

On Thu, Jan 30, 2025 at 7:14 AM Edwin UY <edwin(dot)uy(at)gmail(dot)com> wrote:

> Hi,
>
> Does anyone know of any existing script/s out there somewhere that
> generates some kind of database/instance inventory, like listing of what
> databases exist (\l), schema (\dn) in each databases, extensions (\dx),
> user lists (\du), replication slots, tables, views, parameter
> default/non-default settings etc?
> Maybe there is already one out there, either a shell script or a SQL
> script that I can just run from psql and save the output to file.
> At the moment, running manually via psql running \l, running \c to each DB
> and running \dn, didn't realize I have to run \dn on each database :(, and
> running select statements from pg_tables and so on.
>

Why not put everything you currently do in a shell script?

For per-database commands, something like this:
export PGHOST=mumble
export PGUSER=postgres
DbList=`psql -AXtc "select datname from pg_database
where datistemplate=false and datname <> 'postgres'
order by datname ;"`
for DB in $DbList;
do
psql -h $DB -ac '\dn'
psql -h $DB -ac 'SELECT ... FROM pg_tables WHERE ...;'
done

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