[DOCS] libpq "service" parameter not documented as not allowed inside a pg_service file

While the fact that you cannot do: [service_template] host=xxx.xxx.xxx.xxx [service_db1] dbname=db1 service=service_template seems obvious there is nothing in the documentation that says this is prohibited; and attempting a simple alias entry: [realentry] user=not_system_user dbname=whatever [

[DOCS] Add Optional Variadic Invocation Explanation to 35.4.5 (xfunc-sql)

CREATE FUNCTION varfunc (fixed1 text, VARIADIC vars text[]) [...] SELECT varfunc('text fixed 1'); -- error: function signature not found; thus the number of supplied variadic values must be >= 1 This: http://www.postgresql.org/docs/9.4/static/xfunc-sql.html Describes how to invoke a function de