setWhereRaw method
Implementation
void setWhereRaw(String whereRawSql, [String andOr = 'AND']) {
//assert(whereRawSql != null);
//wheresRawSql.add(WhereRawNode(whereRawSql, andOr));
mWheres.add(WhereNode(whereRawSql, andOr: andOr, type: WhereType.raw));
}