internal override SqlRowNumber VisitRowNumber(SqlRowNumber rowNumber)
{
List <SqlOrderExpression> orderByList = new List <SqlOrderExpression>();
foreach (SqlOrderExpression expression in rowNumber.OrderBy)
{
orderByList.Add(new SqlOrderExpression(expression.OrderType, (SqlExpression)this.Visit(expression.Expression)));
}
return(new SqlRowNumber(rowNumber.ClrType, rowNumber.SqlType, orderByList, rowNumber.SourceExpression));
}
internal virtual SqlRowNumber VisitRowNumber(SqlRowNumber rowNumber)
{
int num = 0;
int count = rowNumber.OrderBy.Count;
while (num < count)
{
rowNumber.OrderBy[num].Expression = this.VisitExpression(rowNumber.OrderBy[num].Expression);
num++;
}
return(rowNumber);
}
internal override SqlRowNumber VisitRowNumber(SqlRowNumber rowNumber)
{
if (rowNumber.OrderBy.Count <= 0)
{
SqlDuplicator duplicator = new SqlDuplicator(true);
List <SqlOrderExpression> list = new List <SqlOrderExpression>();
List <SqlOrderExpression> list2 = new List <SqlOrderExpression>();
if ((this.rowNumberOrders != null) && (this.rowNumberOrders.Count != 0))
{
list2 = new List <SqlOrderExpression>(this.rowNumberOrders);
}
else if (this.orders != null)
{
list2 = new List <SqlOrderExpression>(this.orders);
}
foreach (SqlOrderExpression expression in list2)
{
if (!expression.Expression.IsConstantColumn)
{
list.Add(expression);
if (this.rowNumberOrders != null)
{
this.rowNumberOrders.Remove(expression);
}
if (this.orders != null)
{
this.orders.Remove(expression);
}
}
}
rowNumber.OrderBy.Clear();
if (list.Count == 0)
{
foreach (
SqlColumn column in
SqlReorderer.SqlGatherColumnsProduced.GatherColumns(this.currentSelect.From))
{
if (column.Expression.SqlType.IsOrderable)
{
list.Add(new SqlOrderExpression(SqlOrderType.Ascending, new SqlColumnRef(column)));
}
}
if (list.Count == 0)
{
var column2 = new SqlColumn("rowNumberOrder",
sql.Value(typeof(int),
typeProvider.From(typeof(int)), 1,
false, rowNumber.SourceExpression));
this.PushDown(column2);
list.Add(new SqlOrderExpression(SqlOrderType.Ascending, new SqlColumnRef(column2)));
}
}
foreach (SqlOrderExpression expression2 in list)
{
rowNumber.OrderBy.Add(new SqlOrderExpression(expression2.OrderType,
(SqlExpression)
duplicator.Duplicate(expression2.Expression)));
}
}
return(rowNumber);
}
