| From: | Peter Geoghegan <pg(at)bowt(dot)ie> |
|---|---|
| To: | Craig Ringer <craig(at)2ndquadrant(dot)com> |
| Cc: | PostgreSQL Hackers <pgsql-hackers(at)postgresql(dot)org>, Álvaro Herrera <alvherre(at)2ndquadrant(dot)com>, abhijit Menon-Sen <ams(at)2ndquadrant(dot)com>, Peter Eisentraut <peter(dot)eisentraut(at)2ndquadrant(dot)com>, Pavan Deolasee <pavan(dot)deolasee(at)2ndquadrant(dot)com> |
| Subject: | Re: [PATCH] pageinspect function to decode infomasks |
| Date: | 2017-07-20 03:44:42 |
| Message-ID: | CAH2-Wzmdi6gr3FWtggKcSJZdt7Z1z75WbBCp4O8P6j5mfQSJLQ@mail.gmail.com |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-hackers |
On Wed, Jul 19, 2017 at 8:33 PM, Craig Ringer <craig(at)2ndquadrant(dot)com> wrote:
> That's silly, so here's a patch to teach pageinspect how to decode infomasks
> to a human readable array of flag names.
>
> Example:
>
> SELECT t_infomask, t_infomask2, flags
> FROM heap_page_items(get_raw_page('test1', 0)),
> LATERAL heap_infomask_flags(t_infomask, t_infomask2, true) m(flags);
> t_infomask | t_infomask2 | flags
> ------------+-------------+----------------------------------------------------------------------------
> 2816 | 2 |
> {HEAP_XMIN_COMMITTED,HEAP_XMIN_INVALID,HEAP_XMAX_INVALID,HEAP_XMIN_FROZEN}
> (1 row)
Seems like a good idea to me.
--
Peter Geoghegan
| From | Date | Subject | |
|---|---|---|---|
| Next Message | Julien Rouhaud | 2017-07-20 03:49:40 | Re: psql's \r broken since e984ef5861d |
| Previous Message | Craig Ringer | 2017-07-20 03:38:45 | Re: [PATCH] pageinspect function to decode infomasks |