• Detected some missing optional indices. Occasionally new indices are added (by Nextcloud or installed applications) to improve database performance. Adding indices can sometimes take awhile and temporarily hurt performance so this is not done automatically during upgrades. Once the indices are added, queries to those tables should be faster. Use the command `occ db:add-missing-indices` to add them. Missing indices: "cards_prop_abid_name_value" in table "cards_properties" For more details see the documentation ↗.

docker exec cloud-server sudo -u www-data /bin/bash -c "PHP_MEMORY_LIMIT=512M ./occ db:add-missing-indices -vvv"

Adding additional cards_prop_abid_name_value index to the oc_cards_properties table, this can take some time...
Removing cards_prop_abid index from the oc_cards_properties table
oc_cards_properties table updated successfully.