Solution : https://service.sap.com/sap/support/notes/306953 (SAP Service marketplace login required)
Key words :
technical support including bug fixes, entry rsdb/prefer_union_all = 1exists, /3 profile parameters rsdb/prefer_union_allmust, support level 4 means, kernel versions 31i, db server version, sap application runs, informix database versions 7, support level 4, including corrections
Related Notes :
| 350588 | End of maintenance for Informix Versions 7.2x |
| 306037 | Important parameters when using Informix |
| 176358 | Informix Dynamic Server versions 7.30.TC9 |
| 175700 | Informix Dynamic server versions 7.30.[UF]C7XK |
| 157339 | Informix Dynamic Server versions IDS 7.30.FC6 |
| 157300 | Informix Dynamic Server versions 7.30.[UTF]C5 |
| 156549 | Released operating systems for SAP kernel 4.6x INFORMIX |
| 153155 | Informix Dynamic server versions 7.30.[UT]C7X9 |
| 152378 | Informix Dynamic Server versions 7.30.[UFT]C7XB |
| 85840 | Released operating systems SAP Kernel 4.0x/4.5x INFORMIX |
| 50157 | Using recommended Informix versions |
| 23872 | SAP Kernel 3.0x/3.1x INFORMIX: Released operating systems |