public static void OptimizeChilds(this ISqlConvertible expr)
{
expr.Expolore(e =>
{
if (e != null && e is Expression)
{
Expression e2 = (Expression)e;
return(e2.Optimize());
}
return(e);
});
}
public static ITableDesc[] ExtractTables(ISqlConvertible token)
{
List <ITableDesc> res = new List <ITableDesc>();
token.Expolore(a =>
{
if ((a is ITableDesc) && !(a is ISelect))
{
res.Add((ITableDesc)a);
}
return(a);
});
return(res.ToArray());
}
public static ITableSource FindParentTableSource(this ISqlConvertible token)
{
var p = token.ParentToken;
if (p == null)
{
return(null);
}
if (p is ITableSource)
{
return((ITableSource)p);
}
return(p.FindParentTableSource());
}
