Solution : https://service.sap.com/sap/support/notes/424239 (SAP Service marketplace login required)
Key words :
cost-based optimizer reason, - activates block sampling <degree> - degree, sap profile parameter stats_dbms_stats, statistic collectionthe optional, set init<sid>, 1this parameter activates, parallel query option, sap parameter stats_dbms_stats, standard sampling type, - activates row sampling
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