Activity count problem - Mailing list pgsql-sql

Hi All,

Is there a way I can get activity count of previously run sql to do
some quick error checks.
Say like I ran a select query on an error table and if the activity
count shows that the select query resulted in 10 rows, I want the
process to show failure status. Can this be tracked in pgsql?

Please help me out with this.

Thanks,
Dino