Re: Error 42501 permission denied for schema

akp geek <akpgeek@gmail.com> writes:
> I have 2 schemas , schema1 and schema 2.

> 1. GRANT USAGE ON SCHEMA schema1 TO schema2;

You seem to be confusing schemas and users --- they are not the same
thing at all.  The above grants the right to lookup objects in schema1
to the user (a/k/a role) named schema2; who doesn't necessarily have
anything to do with objects in schema2.

Also, although you failed to show the specific command that was failing,
I suspect what you are actually running into is lack of CREATE
permission not USAGE permission.

            regards, tom lane