consider removal of https://github.com/OHDSI/CommonDataModel/blob/main/inst/sql/sql_server/OMOP_CDM_indices_v6.0.sql if we don't have 6.0 at all in ddl folder
consider removal of https://github.com/OHDSI/CommonDataModel/blob/main/inst/sql/sql_server/OMOP_CDM_indices_v6.0.sql
if we don't have 6.0 at all in ddl folder