public SqlQueryExpression()
: base(SqlExpressionType.Query)
{
From = new SqlQueryExpressionFrom();
GroupBy = new List <SqlExpression>();
Items = new ItemList();
}
public override SqlQueryExpressionFrom VisitQueryFrom(SqlQueryExpressionFrom @from)
{
var result = @from;
if (result != null)
{
result = result.Prepare(preparer);
}
return(result);
}
public virtual SqlQueryExpressionFrom VisitQueryFrom(SqlQueryExpressionFrom from)
{
var result = new SqlQueryExpressionFrom();
var sources = from.Sources.ToList();
for (int i = 0; i < sources.Count; i++)
{
result.Source(VisitQuerySource(sources[i]));
if (i > 0 && !from.IsNaturalJoin)
{
var part = VisitJoinPart(from.GetJoinPart(i - 1));
result.Join(part.JoinType, part.OnExpression);
}
}
return(result);
}