protected virtual Expression VisitPartitionedAggregate(PartitionedAggregateExpression agg)
{
var flag = false;
List<Expression> orderBy = null;
if (agg.OrderBy != null)
{
orderBy = agg.OrderBy.Select(e => this.Visit(e)).ToList();
if (!orderBy.SequenceEqual(agg.OrderBy))
flag = true;
}
List<Expression> partitionBy = null;
if (agg.PartitionBy != null)
{
partitionBy = agg.PartitionBy.Select(e => this.Visit(e)).ToList();
if (!partitionBy.SequenceEqual(agg.PartitionBy))
flag = true;
}
var ofValue = this.Visit(agg.OfValue);
if (ofValue != agg.OfValue)
flag = true;
if (!flag)
return agg;
return CompleteExpression.PartitionedAggregate(
agg.Type, agg.Method, orderBy: orderBy, partitionBy: partitionBy, ofValue: ofValue);
}
protected virtual Expression VisitPartitionedAggregate(PartitionedAggregateExpression agg)
{
var needsComma = false;
this.Write(".");
this.Write(agg.Method);
this.Write("(");
if (agg.OfValue != null)
{
this.WriteLine(Indentation.Inner);
this.Write("ofValue: ");
this.Visit(agg.OfValue);
needsComma = true;
}
if (agg.PartitionBy != null)
{
if (needsComma)
{
this.Write(",");
this.WriteLine(Indentation.Same);
}
else
this.WriteLine(Indentation.Inner);
this.Write("partitionBy: ");
this.Visit(agg.PartitionBy);
needsComma = true;
}
if (agg.OrderBy != null)
{
if (needsComma)
{
this.Write(",");
this.WriteLine(Indentation.Same);
}
else
this.WriteLine(Indentation.Inner);
this.Write("orderBy: ");
this.Visit(agg.OrderBy);
needsComma = true;
}
if (needsComma)
this.WriteLine(Indentation.Outer);
this.Write(")");
return agg;
}
protected override Expression VisitPartitionedAggregate(PartitionedAggregateExpression agg)
{
sb.Append(agg.Method.ToLower());
sb.Append("(");
if (agg.Method == "Count")
sb.Append("*");
else
this.Visit(agg.OfValue);
sb.Append(") over (");
if (agg.PartitionBy != null)
{
sb.Append("partition by ");
this.Visit(agg.PartitionBy);
sb.Append(" ");
}
if (agg.OrderBy != null)
{
sb.Append("order by ");
this.Visit(agg.OrderBy);
sb.Append(" ");
}
sb.Append(")");
return agg;
}
