| From: | Greg Stark <stark(at)mit(dot)edu> |
|---|---|
| To: | Alvaro Herrera <alvherre(at)2ndquadrant(dot)com> |
| Cc: | Heikki Linnakangas <hlinnakangas(at)vmware(dot)com>, Michael Paquier <michael(dot)paquier(at)gmail(dot)com>, David Rowley <dgrowleyml(at)gmail(dot)com>, Jeff Janes <jeff(dot)janes(at)gmail(dot)com>, Robert Haas <robertmhaas(at)gmail(dot)com>, Erik Rijkers <er(at)xs4all(dot)nl>, Emanuel Calvo <3manuek(at)esdebian(dot)org>, Simon Riggs <simon(at)2ndquadrant(dot)com>, Nicolas Barbier <nicolas(dot)barbier(at)gmail(dot)com>, Claudio Freire <klaussfreire(at)gmail(dot)com>, Josh Berkus <josh(at)agliodbs(dot)com>, Andres Freund <andres(at)2ndquadrant(dot)com>, Pg Hackers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: BRIN indexes - TRAP: BadArgument |
| Date: | 2014-11-11 12:38:23 |
| Message-ID: | CAM-w4HPYJUoEqUqaCb2dJeF-JZRphqUhAZN3cANGYijpvyD3kA@mail.gmail.com |
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| Lists: | pgsql-hackers |
On Tue, Nov 11, 2014 at 12:12 PM, Alvaro Herrera
<alvherre(at)2ndquadrant(dot)com> wrote:
> As far as I understand, the scan keys don't change within any given
> scan; if they do, the rescan AM method is called, at which point we
> should reset whatever is cached about the previous scan.
But am I guaranteed that rescan will throw away the opcinfo struct and
its opaque element? I guess that's the heart of the uncertainty I had.
--
greg
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