Ron Johnson <ron(dot)l(dot)johnson(at)cox(dot)net> writes:
> Based on LENGTH(offending_column), none of the values are more than 144
> bytes in this 44.2M row table. Even though VARCHAR is, by definition,
> variable length, are there any internal design issues which would make
> things more efficient if it were dropped to, for example, VARCHAR(256)?
No.
regards, tom lane