2009/7/25 Tom Lane <t...@sss.pgh.pa.us>: > Pavel Stehule <pavel.steh...@gmail.com> writes: >> I have one idea, that should simplify string to char array >> transformation. The base is idea: between every char is empty string, >> so empty string is regular separator for string_to_array function. > > There already is a definition for what string_to_array does with an > empty field separator, and that is not it. So this change would possibly > break existing applications. It does not seem either intuitively > correct or useful enough to justify that --- particularly seeing that > there's already another way to get the effect.
I thing, so nobody use empty separator in string_to_array, because it does nothing useful. Or do you know any case where empty separator should be used? I am not. My argument for "some" non regexp based function is fact, so this function should be very light and fast. Faster than regexp. Other way is one param string_to_array function. This function is not defined yet, so we could to use it. Regards Pavel > > regards, tom lane > -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
