Re: [HACKERS] Last thoughts about LONG

Jan Wieck wrote:
> 
>     - At    CREATE   TABLE,   a   long   value   relation   named
>       "_LONG<tablename>" is created for those tables who need it.
>       And of course dropped and truncated appropriate. The schema
>       of this table is
> 
>           rowid       Oid,          -- oid of our main data row
>           rowattno    int2,         -- the attribute number in main data
>           chunk_seq   int4,         -- the part number of this data chunk
>           chunk       text          -- the content of this data chunk
> 
>       There is a unique index defined on (rowid, rowattno).
>

If you plan to use the same LONGs for multiple versions you will probably 
need a refcount int4 too

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Hannu