On Wed, 2019-11-27 at 17:54 +0000, PG Doc comments form wrote: > "If a list of columns is specified, COPY will only copy the data in the > specified columns to or from the file. If there are any columns in the table > that are not in the column list, COPY FROM will insert the default values > for those columns." > > I clearly see "to or from" file here. But if one tries to COPY FROM filename > with more columns than list specified, the process fails:
I think you misunderstood the documentation. Nowhere in that sentence is the documentation talking about columns in the file, only columns in the table. But if you got it wrong, maybe a clarification would be a good idea. Yours, Laurenz Albe