Re: Can someone please explain this misbehavior?
Posted by: Rick James
Date: August 21, 2014 05:25PM

My apologies about not understanding 'Ё'.

It seems that a new collation may be needed.
http://collation-charts.org/mysql60/mysql604.utf8_unicode_ci.european.html
also seem to equate these:

Ѐ D080
Ё D081
Е D095
е D0B5
ѐ D190
ё D191

How to make a new collation:
http://dev.mysql.com/doc/refman/5.0/en/adding-collation.html
and a long thread about Croation being created:
http://forums.mysql.com/read.php?20,260051,260051

I did some experimenting:
utf8_general_ci equates characters as shown in these clumps:
ἐ=ἑ=ἒ=ἓ=ἔ=ἕ=Ἐ=Ἑ=Ἑ=Ἒ=Ἓ=Ἔ=Ἕ=ὲ=Ὲ Є=є А=а=Ӑ=ӑ=Ӓ=ӓ Ѐ=Ё=Е=е=ѐ=ё=Ӗ=ӗ έ=Έ
utf8_danish_ci (and most others) say this:
ϵ=ἐ=ἑ=ἒ=ἓ=ἔ=ἕ=Ἐ=Ἑ=Ἑ=Ἒ=Ἓ=Ἔ=Ἕ=ὲ=έ=Ὲ=Έ А=а Ӑ=ӑ Ӓ=ӓ Ѐ=Ё=Е=е=ѐ=ё Ӗ=ӗ
icelandic_ci, polish_ci, and vietnamese_ci are slightly different.
utf8mb4 is no better.

utf8 : utf8_croatian_ci

E=e=È=É=Ê=Ë=è=é=ê=ë=Ĕ=ĕ=Ė=ė=Ę=ę=Ě=ě

utf8 : utf8_czech_ci

E=e=È=É=Ê=Ë=è=é=ê=ë=Ĕ=ĕ=Ė=ė=Ę=ę=Ě=ě

utf8 : utf8_danish_ci

E=e=È=É=Ê=Ë=è=é=ê=ë=Ĕ=ĕ=Ė=ė=Ę=ę=Ě=ě

utf8 : utf8_esperanto_ci

E=e=È=É=Ê=Ë=è=é=ê=ë=Ĕ=ĕ=Ė=ė=Ę=ę=Ě=ě

utf8 : utf8_estonian_ci

E=e=È=É=Ê=Ë=è=é=ê=ë=Ĕ=ĕ=Ė=ė=Ę=ę=Ě=ě

utf8 : utf8_general_ci

E=e=È=É=Ê=Ë=è=é=ê=ë=Ĕ=ĕ=Ė=ė=Ę=ę=Ě=ě

utf8 : utf8_general_mysql500_ci

E=e=È=É=Ê=Ë=è=é=ê=ë=Ĕ=ĕ=Ė=ė=Ę=ę=Ě=ě

utf8 : utf8_german2_ci

E=e=È=É=Ê=Ë=è=é=ê=ë=Ĕ=ĕ=Ė=ė=Ę=ę=Ě=ě

utf8 : utf8_hungarian_ci

E=e=È=É=Ê=Ë=è=é=ê=ë=Ĕ=ĕ=Ė=ė=Ę=ę=Ě=ě

utf8 : utf8_icelandic_ci

E=e=È=Ê=Ë=è=ê=ë=Ĕ=ĕ=Ė=ė=Ę=ę=Ě=ě É=é

utf8 : utf8_latvian_ci

E=e=È=É=Ê=Ë=è=é=ê=ë=Ĕ=ĕ=Ė=ė=Ę=ę=Ě=ě

utf8 : utf8_lithuanian_ci

E=e=È=É=Ê=Ë=è=é=ê=ë=Ĕ=ĕ=Ė=ė=Ę=ę=Ě=ě

utf8 : utf8_persian_ci

E=e=È=É=Ê=Ë=è=é=ê=ë=Ĕ=ĕ=Ė=ė=Ę=ę=Ě=ě

utf8 : utf8_polish_ci

E=e=È=É=Ê=Ë=è=é=ê=ë=Ĕ=ĕ=Ė=ė=Ě=ě Ę=ę

utf8 : utf8_roman_ci

E=e=È=É=Ê=Ë=è=é=ê=ë=Ĕ=ĕ=Ė=ė=Ę=ę=Ě=ě

utf8 : utf8_romanian_ci

E=e=È=É=Ê=Ë=è=é=ê=ë=Ĕ=ĕ=Ė=ė=Ę=ę=Ě=ě

utf8 : utf8_sinhala_ci

E=e=È=É=Ê=Ë=è=é=ê=ë=Ĕ=ĕ=Ė=ė=Ę=ę=Ě=ě

utf8 : utf8_slovak_ci

E=e=È=É=Ê=Ë=è=é=ê=ë=Ĕ=ĕ=Ė=ė=Ę=ę=Ě=ě

utf8 : utf8_slovenian_ci

E=e=È=É=Ê=Ë=è=é=ê=ë=Ĕ=ĕ=Ė=ė=Ę=ę=Ě=ě

utf8 : utf8_spanish2_ci

E=e=È=É=Ê=Ë=è=é=ê=ë=Ĕ=ĕ=Ė=ė=Ę=ę=Ě=ě

utf8 : utf8_spanish_ci

E=e=È=É=Ê=Ë=è=é=ê=ë=Ĕ=ĕ=Ė=ė=Ę=ę=Ě=ě

utf8 : utf8_swedish_ci

E=e=È=É=Ê=Ë=è=é=ê=ë=Ĕ=ĕ=Ė=ė=Ę=ę=Ě=ě

utf8 : utf8_turkish_ci

E=e=È=É=Ê=Ë=è=é=ê=ë=Ĕ=ĕ=Ė=ė=Ę=ę=Ě=ě

utf8 : utf8_unicode_520_ci

E=e=È=É=Ê=Ë=è=é=ê=ë=Ĕ=ĕ=Ė=ė=Ę=ę=Ě=ě

utf8 : utf8_unicode_ci

E=e=È=É=Ê=Ë=è=é=ê=ë=Ĕ=ĕ=Ė=ė=Ę=ę=Ě=ě

utf8 : utf8_vietnamese_ci

E=e=È=É=Ë=è=é=ë=Ĕ=ĕ=Ė=ė=Ę=ę=Ě=ě Ê=ê

utf8mb4 : utf8mb4_croatian_ci

E=e=È=É=Ê=Ë=è=é=ê=ë

utf8mb4 : utf8mb4_czech_ci

E=e=È=É=Ê=Ë=è=é=ê=ë

utf8mb4 : utf8mb4_danish_ci

E=e=È=É=Ê=Ë=è=é=ê=ë

utf8mb4 : utf8mb4_esperanto_ci

E=e=È=É=Ê=Ë=è=é=ê=ë

utf8mb4 : utf8mb4_estonian_ci

E=e=È=É=Ê=Ë=è=é=ê=ë

utf8mb4 : utf8mb4_general_ci

E=e=È=É=Ê=Ë=è=é=ê=ë

utf8mb4 : utf8mb4_german2_ci

E=e=È=É=Ê=Ë=è=é=ê=ë

utf8mb4 : utf8mb4_hungarian_ci

E=e=È=É=Ê=Ë=è=é=ê=ë

utf8mb4 : utf8mb4_icelandic_ci

E=e=È=Ê=Ë=è=ê=ë É=é

utf8mb4 : utf8mb4_latvian_ci

E=e=È=É=Ê=Ë=è=é=ê=ë

utf8mb4 : utf8mb4_lithuanian_ci

E=e=È=É=Ê=Ë=è=é=ê=ë

utf8mb4 : utf8mb4_persian_ci

E=e=È=É=Ê=Ë=è=é=ê=ë

utf8mb4 : utf8mb4_polish_ci

E=e=È=É=Ê=Ë=è=é=ê=ë

utf8mb4 : utf8mb4_roman_ci

E=e=È=É=Ê=Ë=è=é=ê=ë

utf8mb4 : utf8mb4_romanian_ci

E=e=È=É=Ê=Ë=è=é=ê=ë

utf8mb4 : utf8mb4_sinhala_ci

E=e=È=É=Ê=Ë=è=é=ê=ë

utf8mb4 : utf8mb4_slovak_ci

E=e=È=É=Ê=Ë=è=é=ê=ë

utf8mb4 : utf8mb4_slovenian_ci

E=e=È=É=Ê=Ë=è=é=ê=ë

utf8mb4 : utf8mb4_spanish2_ci

E=e=È=É=Ê=Ë=è=é=ê=ë

utf8mb4 : utf8mb4_spanish_ci

E=e=È=É=Ê=Ë=è=é=ê=ë

utf8mb4 : utf8mb4_swedish_ci

E=e=È=É=Ê=Ë=è=é=ê=ë

utf8mb4 : utf8mb4_turkish_ci

E=e=È=É=Ê=Ë=è=é=ê=ë

utf8mb4 : utf8mb4_unicode_520_ci

E=e=È=É=Ê=Ë=è=é=ê=ë

utf8mb4 : utf8mb4_unicode_ci

E=e=È=É=Ê=Ë=è=é=ê=ë

utf8mb4 : utf8mb4_vietnamese_ci

E=e=È=É=Ë=è=é=ë Ê=ê

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August 19, 2014 07:53PM
Re: Can someone please explain this misbehavior?
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August 21, 2014 05:25PM


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