Re: [open-cobol-list] Team setup

[Bernard Giroud]

Hi Henry,

Yes, I think this is worthwhile in the middle to long term.

Two points to consider though :

1) It MUST be LGPL'ed, so we don't have to ask our
    users to provide their OWN SOURCE code.
2) Now, that you are well in the compiler proper and that
   many things need to be done, I would suggest to wait
   until there's a real need on that front.

But that last point might not be true for TinyCOBOL; and
because I still have (at least) two hats, I suspect you will not
mind if I cross post that answer to the TC list.

Cheers,

Bernard Giroud
Credit Lyonnais (Suisse) SA
----- Original Message -----
From: <address@hidden>
To: "Giroud, Bernard" <address@hidden>;
<address@hidden>
Sent: Thursday, October 28, 2004 4:21 PM
Subject: Re: [open-cobol-list] Team setup



Hello,

I read this point in the TODO file :


** New backends for INDEXED files

 - Any alternative to BerkeleyDB?
 - Use DB (PostgreSQM, MySQL, etc.) as backends


Actually, I wrote my own implementation of indexed and relative files.
I used it for 3 years for personnal needs.
It could deal with big files (20 millions records, and more than 500 Mo)
with
good performances. (based on trees and mmap)
It has some deficiencies and must be improved : keys are single fields,
delete
is not ready, etc .. And surely it has some bugs.

Do you think it could be an alternative to BerkeleyDB. Is it a good idea or
not
? My opinion is yes but I am partial. And there is still a lot of work to
make
it a solid product. It would be a full job, and doing that I could not do
another thing. Furthermore the task we subscribe is COBOL compilation, not
file
management.

Yet, I think that a COBOL compiler should have its own implementation for
ISAM
and should not depend on third products like BerkeleyDB. (Althought I am a
great
fan of it).
It has to be self-sufficient.
And DB (MySQL, Postgres, ...) induce constraints and minimum administration
tasks which I think are not compatible with the simple needs of an ISAM
tool.

What is your opinion ?

Cheers
Henry



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