how can I move/add existing data to a new key?

[ik_zelf]

I am tracking tablespace metrics.
ts[{#TS_NAME},size]

and moved this database into a container database and doing so, the key became ts[{#PDB},{#TS_NAME},size]

how can I move or add the history for those tablespaces to the new key?

ts[USERS,size] -> ts[MYPDB,USERS,size]

[BDiE8VNy]

Currently I can only think of updating the itemid of rows in trends and history tables from the old itemid to the new one.

You might possibly be interested in ZBXNEXT-2052