Solution : https://service.sap.com/sap/support/notes/1576108 (SAP Service marketplace login required)
Key words :
system automatically creates extended statistics, incorrect cbo decisions due, makes incorrect assumptions due, previously defined column group, create simplified extended statistics, cbo ignores extended statistics, normal brconnect statistics run, system automatically identifies, normal statistic run, inefficient access paths
Related Notes :
| 1526120 | slow query execution with Oracle 10g and 11g and exp. rows 1 |
| 588668 | FAQ: Database statistics |