PB 2017R2, using Query Mode for retrieval.  I need to change a where clause to use "like" instead of "=".

Code from retrieval event:

ls_sql = this.GetSQLSelect()
if pos(ls_sql, "S%") > 0 then
   ls_sql = Replace(ls_sql, pos(ls_sql, "mtk_nb_document ="), 17, "mtk_nb_document like")
   li_sql = this.SetSQLSelect(ls_sql)
end if

The Replace command generates the correct SQL, but SetSQLSelect generates this SQL:

and (((mtk_nb_document like '099479S%')))  and (((mtk_nb_document = '099479S%'))) 

Should I be changing the SQL in another event?

Any help is appreciated.

Pete