The following bug has been logged online:
Bug reference: 1527
Logged by: Theo Petersen
Email address: tpetersen@ocv.com
PostgreSQL version: 7.4
Operating system: Linux (Gentoo)
Description: select retrieves 0 rows after vacuum analyze
Details:
I have a database (network monitoring data created by OpenNMS) that exhibits
this behavior:
1) I restore the database from a production backup.
2) I perform a select that joins four tables, and get 9 rows of output.
3) I use the command VACUUM ANALYZE to maintain the database files.
4) I perform the same select and get 0 rows of output.
I've reduced it to those steps to verify the problem.
Regards,
..Theo