title: not returning anything from postgresql function?
body: <p>Is it possible for a PostgreSQL plpgsql function to not return anything?  I've created a function, and I don't need it to return anything at all, as it performs a complex SQL query, and inserts the results of that query into another table (SELECT INTO ....).  Thus, I have no need or interest in having the function return any output or value.  Unfortunately, when I try to omit the RETURN clause of the function declaration, I can't create the function.  Is it possible for a PostgreSQL plpgsql function to not return anything? </p>