Secondary index on composite partition key breaks code generation

[0x6e6562]

I'm not too sure how practical this example is, but the following construct will break the code generator:

create table t (
   x int,
   y int,
   z int,
   primary key ((x,y),z)
);

create index t_by_y on t(y)

generated_schema.go:17490: (*TYColumn).Eq redeclared in this block
    previous declaration at generated_schema.go:17484