I got into this problem :
I want to create a table programmatically and also create an index,
I got the error invalid key lenght but if I create the index via builder
it's ok. How come ? I try to create the table as free and also belonging to a dbc but without success.
I tried with the command create table
I tried with create table and then alter table
i tried with create table followed by the command index on

nothing to do.

here is my source

Create Table (xpath + 'Myform') free (nomeform c(20),controllo c(200),default c(60), field1 c(60), field2 c(60), field3 c(60), field4 c(60), field5 c(60))

index on nomeform + controllo tag 'chiave'