RE: [open-cobol-list] Bug in Sort Verb

[Robert Sherry]

    Thanks for the response. Your email explains the results that I have
been seeing. 

Bob Sherry

-----Original Message-----
From: address@hidden
[mailto:address@hidden On Behalf Of
Hans-Martin Rasch
Sent: Monday, June 06, 2005 2:55 AM
To: address@hidden
Subject: [open-cobol-list] Bug in Sort Verb

Hi,

the newer BDB versions (I don't know since when, we use 4.2) have the 
following feature:
if the key compare function regards two keys to be equal, only one of them
is
stored in the BDB database (see BDB Reference Guide, section 3.4.4
"Duplicate 
Data Items").
On the other hand, OC tries to store the complete sort data record in the
BDB 
key.
As a consequence, in the sort output two or more sort input records with 
identical sort fields will be overwritten by one of these records.
To solve this problem, the key compare function should return "0", only if
the
two input records are completely identical (not only the sort fields).
Maybe it would be best to append the input record number to the sort data
and 
check it during compare, this would also give "DUPLICATES IN ORDER".

Hans-Martin Rasch  


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