[BUGS] BUG #2161: ILIKE does not work with german umlauts in UTF8

[Thomas Robak]

The following bug has been logged online:

Bug reference:      2161
Logged by:          Thomas Robak
Email address:      [EMAIL PROTECTED]
PostgreSQL version: 8.0.3
Operating system:   i686-pc-linux-gnu SuSE kernel 2.6.11.4-20a-smp
Description:        ILIKE does not work with german umlauts in UTF8
Details: 

Querying tables encoded UTF8 containing german umlauts such aus
Ö,ö,Ä,ä,Ü,ü with ILIKE will only return case-sensitive results. For
example:

Table:
|---------------|
|    DATA               |
|---------------|
| Österreich           |
| Niederösterreich |
| Ober Österreich  |
|---------------|

Query1= SELECT * FROM table WHERE data ILIKE '%ö%' 
Result:
Niederösterreich

Query2= SELECT * FROM table WHERE data ILIKE '%Ö%'
Result:
Österreich
Ober Österreich

---------------------------(end of broadcast)---------------------------
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