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Strange problem with string and select

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Hello,
can I ask is exist some kind of automatic escape string in postgresql ?
I use pgsql 9.1.5 and I have very interest problem, I have field with text string that I cant find normally.
Variable encoding from variables:

 server_encoding                 | WIN1251
 lc_collate                      | bg_BG.CP1251
 lc_ctype                        | bg_BG.CP1251
 lc_messages                     | bg_BG.CP1251
 lc_monetary                     | bg_BG.CP1251
 lc_numeric                      | bg_BG.CP1251
 lc_time                         | bg_BG.CP1251
 client_encoding                 | WIN1251

Here is examples (I replace in example Cyrillic encoding because most of the ppl don't have cp1251 encoding)

select * from postcodes where namejr LIKE 'LULIN V%';
id | namejr
21 | LULIN VIII
22 | LULIN VII
23 | LULIN VIII
24 | LULIN VI
25 | LULIN VII
26 | LULIN V

buf if I do:
select * from postcodes where namejr LIKE 'LULIN VII%';
result is:
22 | LULIN VII
25 | LULIN VII


as I can see ids 21 and 23 missing that should be: LULIN VIII
I dump follow records to text file and make hex compare,
both ids 21 and 23 is the same (equal).

Any one can give me a little help?


Hristo C.





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