Re: issue with an assembled date field

Chris Bowlby <excalibur@accesswave.ca> writes:
> ERROR:  invalid input syntax for type date: "200W-01-01"

> the test data I am using for this example is as follows:

FWIW, I don't see any problem here using that test case.  Have you tried
looking directly at the output of the substring function, ie

select substring(ilch.lot_id::text, 5, 1) FROM my_lot_test ilch;

            regards, tom lane