We would like an infoset query of vendor payments at the cost distribution level of the document. The issue seems to be joining vendor to the document cost distribution lines.
1.) BSAK + BSIK can be combined with an infoset data structure but only contain the vendor line of a document; the cost distribution lines are not in the tables.
2.) BSIS + BSAS can be combined with an infoset data structure but lack vendor data and joins (to a vendor source) are not an option with data structures. Vendor data added with an additional field is too slow to be a primary selection field.
3.) Logical data base KDF in an infoset returns only the vendor line of a document, not the cost distribution lines.
4.) Logical data base BRM in an infoset can have vendor from BSAK/BSIK attached by an additional field but performance is too slow to be useful. Joins are not an option in a logical data base infoset.
5.) Complete data is lacking when table joins between document cost distribution tables and vendor data tables are possible, (SPL actual line item table & BSIP or FMIFIIT & FMIFIHD). BSIP lacks AB documents (reversals). FM tables lack general ledger only documents.
6.) BSAK and BSIK together have complete vendor data but joins of both to a basis table do not work well. Left outer joins are too slow, inner joins won’t work since the tables have mutually exclusive data.
It would be ideal to have vendor in BKPF, like FMIFIHD has, but it isn't a field.
Does anyone know of any other options? I have seen the helpful thread on How to Read BSEG Efficiently