Client-side field projection: keep only the named value fields. Unknown field names are ignored (never sent upstream). Names are matched case-insensitively, with - and _ treated alike (fieldKey), so the catalogue's AI-Z01 selects the data's ai_z01.
-
_
fieldKey
AI-Z01
ai_z01
Client-side field projection: keep only the named value fields. Unknown field names are ignored (never sent upstream). Names are matched case-insensitively, with
-and_treated alike (fieldKey), so the catalogue'sAI-Z01selects the data'sai_z01.