I know how to convert a text to timestamp in postgreSQL using
* SELECT to_timestamp('05 Dec 2000', 'DD Mon YYYY')*
but how can I convert a text variable (inside a function) to timestamp??
In my table (table_ebscb_spa_log04) "time" is a character varying column, in
which I have placed a formated date time (15-11-30 11:59:59.999 PM).
I have tried this function, in order to convert put the date time text into
a variable (it always change) and convert it into timestamp...
* CREATE OR REPLACE FUNCTION timediff()
RETURNS trigger AS
$BODY$
DECLARE
timeascharvar character varying;
timeastistamp timestamp;
BEGIN
IF NEW.time_type = 'Lap' THEN
SELECT t.time FROM table_ebscb_spa_log04 t INTO timeascharvar;
SELECT to_timestamp('timeascharvar', 'yy-mm-dd HH24:MI:SS.MS') INTO
timeastistamp;
END IF;
RETURN timeastistamp;
END
$BODY$
LANGUAGE plpgsql VOLATILE
COST 100;
ALTER FUNCTION timediff()
OWNER TO postgres;*
but whenever I run it in the table, it shows this ERROR message...
<http://postgresql.nabble.com/file/n5855346/screenshot.bmp>
It seems that "to_timestamp" waits for a number to be the year, how can I
get it to recognize the variable as if it were numbers?
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