Hi, On Thu, 2 Jul 2026 at 18:41, Fujii Masao <[email protected]> wrote:
> Hi, > > I found that generated columns and system columns cannot be used in > COPY FROM WHERE expressions, but the COPY docs still mentions > only the restriction on subqueries. > > So I've created the attached patch which updates the docs to also list > generated columns and system columns as unsupported in COPY FROM WHERE > expressions. > > Since generated columns have been rejected in COPY FROM WHERE since > v13, that docs change should be backpatched to all supported branches. > But the system-column restriction was introduced in v19, so that part > does not need to be backpatched. > > Thoughts? > Thanks for the patch! I think it makes sense to add the system columns and generated columns limitation to the documentation, patch LGTM. Regards, Ayush
