> > pei=# copy test1 (a, a) to stdout; > ERROR: 42701: column "a" specified more than once > > Or is this just an overly extensive check that is actually intended for COPY > FROM STDIN? > >
This seems to be a common check in both "COPY TO" and "COPY FROM" cases source/destination being STDIN or otherwise. While it definitely makes sense for the FROM case maybe we could relax this for the COPY TO case.
