protected override Expression VisitAggregateSubquery(AggregateSubqueryExpression aggregate)
{
Expression mapped;
if (_map.TryGetValue(aggregate, out mapped))
return mapped;
return Visit(aggregate.AggregateAsSubquery);
}
protected virtual Expression VisitAggregateSubquery(AggregateSubqueryExpression aggregateSubquery)
{
Expression e = Visit(aggregateSubquery.AggregateAsSubquery);
ScalarExpression subquery = (ScalarExpression)e;
if (subquery != aggregateSubquery.AggregateAsSubquery)
return new AggregateSubqueryExpression(aggregateSubquery.GroupByAlias, aggregateSubquery.AggregateInGroupSelect, subquery);
return aggregateSubquery;
}
protected virtual Expression VisitAggregateSubquery(AggregateSubqueryExpression aggregateSubquery)
{
Expression e = Visit(aggregateSubquery.AggregateAsSubquery);
ScalarExpression subquery = (ScalarExpression)e;
if (subquery != aggregateSubquery.AggregateAsSubquery)
{
return(new AggregateSubqueryExpression(aggregateSubquery.GroupByAlias, aggregateSubquery.AggregateInGroupSelect, subquery));
}
return(aggregateSubquery);
}
protected override Expression VisitAggregateSubquery(AggregateSubqueryExpression aggregateSubquery)
{
return aggregateSubquery;
}
protected override Expression VisitAggregateSubquery(AggregateSubqueryExpression aggregate)
{
_aggregates.Add(aggregate);
return base.VisitAggregateSubquery(aggregate);
}
protected virtual bool CompareAggregateSubquery(AggregateSubqueryExpression a, AggregateSubqueryExpression b)
{
return(Compare(a.AggregateAsSubquery, b.AggregateAsSubquery) &&
Compare(a.AggregateInGroupSelect, b.AggregateInGroupSelect) &&
a.GroupByAlias == b.GroupByAlias);
}
protected virtual bool CompareAggregateSubquery(AggregateSubqueryExpression a, AggregateSubqueryExpression b)
{
return Compare(a.AggregateAsSubquery, b.AggregateAsSubquery)
&& Compare(a.AggregateInGroupSelect, b.AggregateInGroupSelect)
&& a.GroupByAlias == b.GroupByAlias;
}