> Chris/ Josh-
>
> OK-response to Chris below. Synopsis here....simply by creating a foreign
> key will not create an index. On large tables I SHOULD put a non-unique
> index on the foreign key (right?)
For large tables, I guess you may as well. You can be more scientific about
it if you you unhash this in your postgresql.conf:
stats_command_string = true
stats_row_level = true
stats_block_level = true
Then you can just use the pg_stat views to see how many sequential scans are
being run over your tables and how expensive they are, etc.
Chris
