protected virtual bool CompareAggregateSubquery(DbAggregateSubqueryExpression a, DbAggregateSubqueryExpression b)
{
return
(
this.Compare(a.AggregateAsSubquery, b.AggregateAsSubquery) &&
this.Compare(a.AggregateInGroupSelect, b.AggregateInGroupSelect) &&
a.GroupByAlias == b.GroupByAlias
);
}
protected DbAggregateSubqueryExpression UpdateAggregateSubquery(DbAggregateSubqueryExpression aggregate, DbScalarExpression subquery)
{
if (subquery != aggregate.AggregateAsSubquery)
{
return(new DbAggregateSubqueryExpression(aggregate.GroupByAlias, aggregate.AggregateInGroupSelect, subquery));
}
return(aggregate);
}
protected override Expression VisitAggregateSubquery(DbAggregateSubqueryExpression aggregate)
{
if (this.map.TryGetValue(aggregate, out Expression mapped))
{
return(mapped);
}
return(this.Visit(aggregate.AggregateAsSubquery));
}
protected virtual Expression VisitAggregateSubquery(DbAggregateSubqueryExpression aggregate)
{
return(this.UpdateAggregateSubquery(aggregate, this.Visit(aggregate.AggregateAsSubquery) as DbScalarExpression));
}
protected override Expression VisitAggregateSubquery(DbAggregateSubqueryExpression aggregate)
{
this.aggregates.Add(aggregate);
return(base.VisitAggregateSubquery(aggregate));
}