On 17 Jan 2018, at 5:47 PM, Graham Leggett <minf...@sharp.fm> wrote: > I need to test whether a database is empty, in other words “createdb” has > been executed but no data of any kind appears in that database. > > What is the correct postgresql way to do this? > > Is there a pg_isempty command or equivalent somewhere?
Does this query look right?
db=# select count(s.nspname) from pg_class c join pg_namespace s on s.oid =
c.relnamespace where s.nspname in ('public');
count
-------
0
(1 row)
It is based on the idea that the database is not empty if there are any class
entries in the “public” namespace?
Regards,
Graham
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