[Glass] allSubInstances slow

[Dale Henrichs via Glass]

Johan,

Take a look at GsDeployer>>doBulkMigrate ... you can do a list instances
for a bunch of classes with a single pass through the repoistory ... and I
will submit a bug against allSubInstances since this trick should be used
there as well...

Dale

On Mon, Sep 29, 2014 at 11:29 AM, Johan Brichau via Glass <
glass at lists.gemtalksystems.com> wrote:

> Hi there,
>
> I’m implementing a data migration where I need to do a MyClass
> allSubInstances, which seems to be very very slow even on a moderately
> sized database.
> I was wonder if there are better practices to achieve this? The class
> MyClass has many subclasses.
>
> Is it better do separate the iteration of all those instances per subclass?
> I.e.: MySubClassA allInstances do: […]. MySubClassB allInstances do:[…]
> etc….
> Or is there any other way to speed things up here?
>
> thanks
> Johan
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