// *defined at base condition-bean per table
        //  o xsetupForColumnQuery()
        //  o xsetupForVaryingUpdate()

        protected void xinheritSubQueryInfo(ConditionQuery mainCQ)
        {
            if (mainCQ.xgetSqlClause().isForSubQuery())
            {
                this.SqlClause.setupForSubQuery(mainCQ.xgetSqlClause().getSubQueryLevel()); // inherited
            }
        }
        protected void xprepareSubQueryInfo(ConditionQuery mainCQ)
        {
            int nextSubQueryLevel = mainCQ.xgetSqlClause().getSubQueryLevel() + 1;

            this.SqlClause.setupForSubQuery(nextSubQueryLevel); // incremented
        }