Re: Analytic Function Bug

Rumpi Gravenstein <rgravens(at)gmail(dot)com> writes:
> Is this a PostgreSQL bug?

Maybe, but you haven't provided enough information to let anyone else
reproduce the behavior.

Personally I'm suspicious that because your lag() calls are over

partition by p.logical_partition_key, p.txt order by indx

but then you filter by

where logical_partition_key='TEST_DATA' and usage_text='F(T61)(EXPORT)';

that the lag() functions are seeing some rows that don't show up in
the final output. (This'd require that some output rows from "parse"
share txt values but not usage_text values, but that certainly looks
like it's possible.) So IMO you have not actually demonstrated that
there is any bug.

regards, tom lane