Revert "change the way ETL generator treat special prefixes; add new trim prefixes to ETL generator"
Revert "change the way ETL generator treat special prefixes; add new trim prefixes to ETL generator"

This reverts commit 38bfb5bc5101d9eebb55bd3d8a16454dd4487bb2.

BillRun/system,BillRun/system,BillRun/system,BillRun/system