Bug #26280 MYSQL Problem with Greek Characters
Submitted: 12 Feb 2007 8:54 Modified: 22 Feb 2007 9:41
Reporter: Angelo Kandrettis Email Updates:
Status: Can't repeat Impact on me:
None 
Category:MySQL Server: Charsets Severity:S3 (Non-critical)
Version:MYSQL 5.0 OS:Windows (Windows XP)
Assigned to: CPU Architecture:Any

[12 Feb 2007 8:54] Angelo Kandrettis 
Description:
I have a problem with the greek characters stored in my database.....

I have my 'MY.ini' file set to 

default-character-set=utf8
default-collation=utf8_bin

I have realised that MYSQL regard the greek letter 'Δ' (delta) and the greek letter 'Ε' (epsilon) as the same!!!!

In one of my tables called "Documents", I have a field called "Description"
I have two records whose "description" are "ΔΟΧ" (Delta,omikron,chi) and "ΕΟΧ" (Epsilon,omikron,chi).

When I execute the query:
    select *
    From Documents
    where "description" LIKE 'ΔΟΧ'

The result is I get both records (ΔΟΧ and ΕΟΧ)

I've been on numerous forums and all recommend to add the word 'BINARY' in the "where" clause. When this is added I receive no results even though the character case is identical!! 

The same problem may occur with other greek characters but I have yet to try

Thankyou 

Angelo Kandrettis

How to repeat:
1) Create a table with one field name lets say "Description"
2) use UTF8 as character set and utf8_bin as the collation
3) Add two records naming them 'ΔΟΧ' (delta,omikron,chi) and                   'ΕΟΧ' (Epsilon,omikron,chi)
4) execute the following SQL statement:
   select *
    From <tablename>
    where <fieldname> LIKE 'ΔΟΧ'
5) Wrongly the result will include the record 'ΕΟΧ'
[12 Feb 2007 9:21] Sveta Smirnova 
Thank you for the report.

Please indicate accurate minor version of the server you use.
[22 Feb 2007 7:33] Angelo Kandrettis 
The MYSQL version I am using is 5.0 although I have tried the same scenario using MYSQL 5.2 beta and the problem still persists

Thanks
[22 Feb 2007 9:40] Sveta Smirnova 
test case

Attachment: bug26280.test (application/octet-stream, text), 489 bytes.
[22 Feb 2007 9:41] Sveta Smirnova 
Thank you for the report.

I can not repeat described behaviour using attached test with last development sources.