On Sun, Jan 13, 2013 at 02:17:34PM -0500, Vibhor Kumar wrote:
>
> On Jan 13, 2013, at 1:36 PM, AI Rumman <rummandba@xxxxxxxxx> wrote:
>
> > CREATE VIEW stats_slowest_queries AS
> > SELECT pg_stat_activity.procpid, (('now'::text)::timestamp(6) with time
> > zone - pg_stat_activity.query_start) AS execution_time,
> > pg_stat_activity.current_query FROM pg_stat_activity WHERE
> > (pg_stat_activity.current_query !~~ '<IDLE%'::text) ORDER BY
> > (('now'::text)::timestamp(6) with time zone - pg_stat_activity.query_start)
> > DESC;
> > psql:pg_upgrade_dump_db.sql:498897: ERROR: column pg_stat_activity.procpid
> > does not exist
> > LINE 2: SELECT pg_stat_activity.procpid, (('now'::text)::timesta...
> > ^
> > It failed.
>
>
> Reason is: From postgreSQL 9.2 onwards, pg_stat_activity.procpid is renamed as pg_stat_activity.pid.
> http://www.postgresql.org/docs/9.2/interactive/release-9-2.html
Yes. Pg_upgrade doesn't know about renamed system columns, so if you
had a view that referenced a renamed column, pg_upgrade wouldn't know
about that until it tried to restore the view and it failed.
--
Bruce Momjian <bruce@xxxxxxxxxx> http://momjian.us
EnterpriseDB http://enterprisedb.com
+ It's impossible for everything to be true. +
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