Re: Nasty, propagating POLA violation in COPY CSV HEADER

David Fetter <david@fetter.org> writes:
> OK, new proposal:

> COPY FROM (Thanks, Andrew!  Must not post while asleep...) should have
> an option which requires that HEADER be enabled and mandates that the
> column names in the header match the columns coming in.

> Has someone got a better name for this option than
> KEEP_HEADER_COLUMN_NAMES?

Well, if it's just checking that the list matches, then maybe
CHECK_HEADER would do.

In your original proposal, I was rather wondering what should happen if
the incoming file didn't have the same set of columns called out in the
COPY command's column list.  (That is, while *rearranging* the columns
might be thought non-astonishing, I'm less convinced about a copy
operation that inserts or defaults columns differently from what the
command said should happen.)  If we're just checking for a match, that
question goes away.
        regards, tom lane