Solution : https://service.sap.com/sap/support/notes/1018798 (SAP Service marketplace login required)
Key words :
external bi data manager read interface rsdri, system issues error message rsd_trex 138, classic relational database systems, longer issues error message, front end/calculation layer, query includes complex features, olap engine performs aggregation, data read request, error message informing, bi support package 17
Related Notes :
| 1260249 | BWA 7.00/7.20: List of Error Codes |
| 1157582 | BIA 7.00: New feature "package wise read" |
| 1002839 | BIA 7.00: Error due to huge resultset of query |
| 988989 | Query terminatn if BIA is inactive, user-specific BIA usage |
| 883726 | BIA 7.00: Central Note SAP NetWeaver BI accelerator |