Solution : https://service.sap.com/sap/support/notes/915398 (SAP Service marketplace login required)
Key words :
optionkeycard freqval numcols 1 count 250is, thekeycard freqval numcols 1 count 0option, db-independent parameter i_force_statistics, db-independent function module, sap business information warehouse, avoid poor access plans, 5 support package 16and bw 7, calculating current db2 statistics, function module returns, key figures change
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