Hi,
On 2014-02-26 07:32:45 +0000, Simon Riggs wrote:
> > * This definitely should include isolationtester tests actually
> > performing concurrent ALTER TABLEs. All that's currently there is
> > tests that the locklevel isn't too high, but not that it actually works.
>
> There is no concurrent behaviour here, hence no code that would be
> exercised by concurrent tests.
Huh? There's most definitely new concurrent behaviour. Previously no
other backends could have a relation open (and locked) while it got
altered (which then sends out relcache invalidations). That's something
that should be tested.
> > * Why does ChangeOwner need AEL?
>
> Ownership affects privileges, which includes SELECTs, hence AEL.
So?
Greetings,
Andres Freund
-- Andres Freund http://www.2ndQuadrant.com/PostgreSQL Development, 24x7 Support, Training &
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