Copy field is just a directive that tells data should be copied from source field A to target field B, so “copy field” itself is not a field (think “copy” as a verb)
The target field and source field are regular fields and can take all kinds of attributes like indexed=true or docValues=true So sorting or querying on a “copy field” is not logical as it is not a field. Source and target files can be queried/sorted -Ufuk — > On Apr 2, 2025, at 22:40, Ehrenleitner Robert Harald > <robert.ehrenleit...@plus.ac.at> wrote: > > title_str