The following bug has been logged online:

Bug reference: 2783
Logged by: mike
Email address: michael (AT) fareastfootwear (DOT) com.cn
PostgreSQL version: 8.1.5
Operating system: windows 2000
Description: insufficient base table information for updating or
refreshing
Details:

if using 8.01.0200 driver, can select table, but cannot insert picture

if using 8.02.0200 driver, can insert picture, but cannot select table

is it safe to use 8.2 beta 3 for production use?

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TIP 2: Don't 'kill -9' the postmaster