Re: COPY manual is ambiguous about column list
Tom Lane <[email protected]> Fri, 20 Dec 2019 00:32:30 -0500
| Newsgroups | gmane.comp.db.postgresql.devel.documentation |
|---|---|
| Message-ID | <[email protected]> |
"David G. Johnston" <[email protected]> writes: > Seems better to simply talk about each form independently: > If a list of columns is specified, <command>COPY TO</command> will only > copy the data in the specified columns to the file. <command>COPY > FROM</command> will, by position (i.e., the number of columns listed must > match the number of columns in the file), match each file column to the > named column in the table. Any additional columns present in the table > will receive their default value. +1 for separating it like that, but your middle sentence reads awkwardly to me. How about something like <command>COPY FROM</command> will match each listed column in the table to a file column by position (so the number of columns listed must match the number of columns in the file). regards, tom lane