Solution : https://service.sap.com/sap/support/notes/841280 (SAP Service marketplace login required)
Key words :
query optimizer converts exist subqueries, database optimizer selects, considerably longer runtime, full table scan, index range scan, semi-join prevents, <-- exist subquery t_100, exist subqueries, exist require, exist operator
Related Notes :
| 1116930 | FAQ: Sub-queries |
| 176754 | Problems with CBO and RBO |