Solution
1. Recreate the index 1 on the table E071 (defined for the fields PGMID, OBJECT and OBJ_NAME).
2. Refresh the statistics for the table E071.
Alternatively, if creating an additional index is an option:
1. Create an index on the table E071 for the fields TRKORR, PGMID, OBJECT and OBJ_NAME.
2. Refresh the statistics for the table E071.
Repeat the phase RUN_RSAIMMERGE_TRANSFER.
refer to note:2496666 - RUN_RSAIMMERGE_TRANSFER: Long runtime during upgrade or EHPI - recommendations