 ----------------------------
 -- DATE/TIME OPERATIONS
 ----------------------------
-CREATE OR REPLACE FUNCTION increase_years (a_date timestamp,a_years integer) RETURNS timestamp AS $$
+CREATE OR REPLACE FUNCTION inc_years (a_date timestamp,a_years integer) RETURNS timestamp AS $$
 	SELECT $1+'1year'::interval*coalesce($2,0);
 $$ LANGUAGE sql IMMUTABLE CALLED ON NULL INPUT;
-CREATE OR REPLACE FUNCTION decrease_years (a_date timestamp,a_years integer) RETURNS timestamp AS $$
+CREATE OR REPLACE FUNCTION dec_years (a_date timestamp,a_years integer) RETURNS timestamp AS $$
 	SELECT $1-'1year'::interval*coalesce($2,0);
 $$ LANGUAGE sql IMMUTABLE CALLED ON NULL INPUT;
-CREATE OR REPLACE FUNCTION decrease_years (a_date timestamp,a_years double precision) RETURNS timestamp AS $$
+CREATE OR REPLACE FUNCTION dec_years (a_date timestamp,a_years double precision) RETURNS timestamp AS $$
 	SELECT $1-'1year'::interval*coalesce($2,0);
 $$ LANGUAGE sql IMMUTABLE CALLED ON NULL INPUT;
 

-- LOG_VAR
----------------------------


CREATE OR REPLACE FUNCTION passgen () RETURNS text AS $$
	SELECT substr(encode(decode(md5(random()::text),'hex'),'base64'),1,10);
$$ LANGUAGE sql VOLATILE STRICT;
CREATE OR REPLACE FUNCTION str2int (a text,def integer) RETURNS integer AS $$
DECLARE
	r integer;
BEGIN
	BEGIN
		SELECT INTO r a::integer;
	EXCEPTION
		WHEN OTHERS THEN
			-- do nothing
	END;
	RETURN coalesce(r,def);
END;
$$ LANGUAGE plpgsql IMMUTABLE CALLED ON NULL INPUT;
CREATE OR REPLACE FUNCTION str2num (a text,def numeric) RETURNS numeric AS $$
DECLARE
	r numeric;
