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https://issues.apache.org/jira/browse/TORQUE-281?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Thomas Fox resolved TORQUE-281.
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Resolution: Won't Fix
Assignee: Thomas Fox
A database is in principle a device where many users can write to.
This means a row in the database can be written by a concurrent connection at
any time.
There are two ways known to me to be sure that all columns of a row are in the
desired state
a) write all rows
b) put a write lock on the row while reading and then write only the changed
columns
Torque has always chosen the method a). It may be a bit slower but it is
simple. b) has the problem that a lock is put on a row, which can cause
problems like when to lock a row, dealing with unreleased locks, deadlocks etc.
> Only issue SQL update with columns whose value is changed in dbObject, since
> it was loaded from db
> --------------------------------------------------------------------------------------------------
>
> Key: TORQUE-281
> URL: https://issues.apache.org/jira/browse/TORQUE-281
> Project: Torque
> Issue Type: Improvement
> Reporter: rajguru
> Assignee: Thomas Fox
>
> This means dbObject needs to have a way to see oldValue and newValue. If so
> also provide some hooks in the code before update/after update/before
> insert/after insert/before delete and after delete, so one can plugin an
> auditing code to log the oldValue to newValue change
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