/// <summary>
///
/// </summary>
/// <param name="subquery"></param>
/// <returns></returns>
protected virtual Expression VisitSubquery(SubqueryExpression subquery)
{
switch ((DbExpressionType)subquery.NodeType)
{
case DbExpressionType.Scalar:
return(this.VisitScalar((ScalarExpression)subquery));
case DbExpressionType.Exists:
return(this.VisitExists((ExistsExpression)subquery));
case DbExpressionType.In:
return(this.VisitIn((InExpression)subquery));
}
return(subquery);
}
/// <summary>
///
/// </summary>
/// <param name="a"></param>
/// <param name="b"></param>
/// <returns></returns>
protected virtual bool CompareSubquery(SubqueryExpression a, SubqueryExpression b)
{
if (a.NodeType != b.NodeType)
{
return(false);
}
switch ((DbExpressionType)a.NodeType)
{
case DbExpressionType.Scalar:
return(this.CompareScalar((ScalarExpression)a, (ScalarExpression)b));
case DbExpressionType.Exists:
return(this.CompareExists((ExistsExpression)a, (ExistsExpression)b));
case DbExpressionType.In:
return(this.CompareIn((InExpression)a, (InExpression)b));
}
return(false);
}