We're currently using PostgreSQL 9.2 in our production database, we want to migrate to a new RDS instance, using PostgreSQL 9.4. However, we need to have permission to create a function, but only superuser can create functions on RDS and my user can't be granted as superuser.
CREATE FUNCTION crosstab50(text, OUT rownumber integer, OUT c1 text,...) RETURNS SETOF record LANGUAGE c STABLE STRICT AS '$libdir/tablefunc', 'crosstab';
But we're getting this error during our restore operation:
ERROR: permission denied for language c