internal override object Clone(SqlNodeCloneContext context)
{
if (context.NodeMapping.ContainsKey(this))
{
return(context.NodeMapping[this]);
}
SqlSelect clone = new SqlSelect(from == null ? null : (SqlTable)from.Clone(context));
foreach (SqlColumn c in columns)
{
clone.Columns.Add((SqlColumn)c.Clone(context));
}
if (groupBy != null)
{
foreach (SqlColumn c in groupBy)
{
clone.GroupBy.Add((SqlColumn)c.Clone(context));
}
}
if (!where.IsNullReference())
{
clone.Where = (SqlExpression) where.Clone(context);
}
if (!having.IsNullReference())
{
clone.Having = (SqlExpression)having.Clone(context);
}
if (orderBy != null)
{
foreach (SqlOrder so in orderBy)
{
clone.OrderBy.Add((SqlOrder)so.Clone(context));
}
}
clone.Distinct = distinct;
clone.Limit = Limit;
clone.Offset = Offset;
clone.Lock = Lock;
if (Hints.Count > 0)
{
foreach (SqlHint hint in Hints)
{
clone.Hints.Add((SqlHint)hint.Clone(context));
}
}
context.NodeMapping[this] = clone;
return(clone);
}
internal override object Clone(SqlNodeCloneContext context)
{
if (context.NodeMapping.ContainsKey(this))
{
return(context.NodeMapping[this]);
}
SqlSubQuery clone;
SqlSelect select = query as SqlSelect;
SqlQueryExpression expression = query as SqlQueryExpression;
if (select != null)
{
clone = new SqlSubQuery((SqlSelect)select.Clone(context));
}
else
{
clone = new SqlSubQuery((SqlQueryExpression)expression.Clone(context));
}
context.NodeMapping[this] = clone;
return(clone);
}