pg_upgrade failed for 9.0 to 9.2

[AI Rumman <rummandba@xxxxxxxxx>]

Hi,

When I was upgrading database from 9.0 to 9.2 using pg_upgrade, I got the error:

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.

Could you let me know why?

Thanks.