2010/4/23 சிவகுமார் மா <masivakumar@gmail.com>:
> 1. We have a production system tracking value added to a batch through
> series of stages. Value table is updated through triggers on data
> tables.
>
> 2. These trigger functions have been tested and validated for over 1.5
> years with more than 100,000 records.
>
> 3. We found a difference in the calculation while verifying March 2010
> records. Rechecked functions and data. Identified the source of
> difference as a row in value table which could not be explained.
>
> This table is filled by a trigger function, not touched by application code.
>
> 4. Tried looking at oid of the rows.
>
> select oid, * from transaction_value where transaction_id in (633509,
> 633507, 633505) and cost_type_id=1;
> oid | transaction_id | source_id | cost_type_id | section_id | value
> -----------+----------------+-----------+--------------+------------+-------------
> 570938 | 633505 | | 1 | |
> 614078.0250
> 292333023 | 633509 | 629483 | 1 | |
> 12284.9411
> 292332829 | 633505 | 629483 | 1 | |
> 115701.8092
> 292332944 | 633507 | 629483 | 1 | |
> 85101.1377
>
> Three rows starting with 292333--- are expected ones. The one with
> oid=570938 is the unexplained one.
>
> Does this indicate any thing? Or should we look elsewhere?
You haven't given enough information to make any sort of reasonable
diagnosis. Most people are going to assume the problem is on your end
but it's possible to know for sure without having the trigger function
at the very least.
merlin