[PATCH] migrations: Optimize 0007 patch comment for psql

[Finucane, Stephen]

On 24 Mar 08:52, Andy Doan wrote:
> On 03/23/2016 12:01 PM, Finucane, Stephen wrote:
> >On 17 Mar 16:04, Andy Doan wrote:
> >>By handling comment copying/deletion via SQL we can make migration take
> >><3 minutes rather than >30minutes for big instances. The SQL is vendor
> >>specific, so a similar query would need to be added to support MySQL.
> >>
> >>Signed-off-by: Andy Doan <andy.doan at linaro.org>
> >
> >Some nits below, but nothing important so happy to merge. Any chance
> >you want to do the same for MySQL? :)
> 
> I'll give it a shot.

No panic. This can be a separate follow-up patch to get this through.

> >I'd rather this check be done in each function, rather than having multiple
> >functions. It just seems...cleaner.
> 
> will do
> 
> >>  def recreate_comments(apps, schema_editor):
> >
> >Is it possible to migrate this also? Is it worth it?
> 
> I'm sure someone with more DB experience would have a trick, but
> given its only for a reverse migration I figured it wasn't worth it.

Makes sense.