I have the following function and view in my db:
create or replace function ${catalogSchema}.fn_show_pg_stat_activity() returns setof pg_catalog.pg_stat_activity as $$ select * from pg_catalog.pg_stat_activity; $$ language sql volatile security definer;
create or replace view ${catalogSchema}.pg_stat_activity as select * from ${catalogSchema}.fn_show_pg_stat_activity();
During an upgrade from 9.5.4 to 9.6.1, the upgrade failed due to the error msg below: obviously the structure of pg_catalog.pg_stat_activity has changed between these 2 version.
pg_restore: creating VIEW "rcmmaster.pg_stat_activity" pg_restore: [archiver (db)] Error while PROCESSING TOC: pg_restore: [archiver (db)] Error from TOC entry 205; 1259 1995821 VIEW pg_stat_activity rcm_master_user pg_restore: [archiver (db)] could not execute query: ERROR: column reference "query" is ambiguous
My question: seems like pg_dump and pg_restore duirng the pg_upgrade actually used a hard-coded record/column set of the old verison of pg_stat_activity, instead of just recompiling the function then the view after the system catalog upgrade, so it would dynamically just retrieve the new column lists. Could this be considered a bug/defect? Is there any way to work around it w/o a postgresql fix?
Thanks,
Patricia
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