The following bug has been logged online:

Bug reference: 1949
Logged by: Maher Abdel Karim
Email address: maher_karim (AT) dorsch (DOT) com.jo
PostgreSQL version: 8.0.3
Operating system: Windows XP
Description: Inserting Unicode hindi numbers
Details:

I have a database with UNICODE encoding.
Trying to insert integers with Unicode hindi number, it fails, and the
values can not be inserted to the database. and needs to re-write the
numbers manually to arabic numbers.

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TIP 9: In versions below 8.0, the planner will ignore your desire to
choose an index scan if your joining column's datatypes do not
match

The UNICODE server encoding is not supported under Windows in 8.0. This
has been fixed in 8.1.For 8.0, you need to pick a different encoding.

//Magnus

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