Solution : https://service.sap.com/sap/support/notes/436723 (SAP Service marketplace login required)
Key words :
additional key words performance, entire key fields, long sequential read, extract structure exist, transaction sm50, table glpct, sum 0ec_pca_1, select statement, implement notes 420947, bw connection
Related Notes :
| 436478 | Suppress aggregation for BW extractors optionally |
| 420947 | Bad performance at FI-SL extractor |