Solution : https://service.sap.com/sap/support/notes/1093107 (SAP Service marketplace login required)
Key words :
askey field <table>-<column> missingmc id <matchcode_id> consistent, costly select count access occurs, includes considerably larger datasets, explicit select count command, select count instructions, database interface performs, complete current client, relevant abap code, runtime object -> display, small column
Related Notes :
| 766349 | FAQ: Oracle SQL optimization |