- Check your database collations : maria DB resources
Case Sensitive Collations
| Collation | Charset | Id | Default | Compiled | Sortlen |
|---|---|---|---|---|---|
| latin1_general_cs | latin1 | 49 | Yes | 1 | |
| latin2_czech_cs | latin2 | 2 | Yes | 4 | |
| cp1250_czech_cs | cp1250 | 34 | Yes | 2 | |
| latin7_estonian_cs | latin7 | 20 | Yes | 1 | |
| latin7_general_cs | latin7 | 42 | Yes | 1 | |
| cp1251_general_cs | cp1251 | 52 | Yes | 1 |
In general, utf8_general_ci is faster than utf8_unicode_ci, but less correct. Note: utf8 is not an old form of utf16 but rather utf16 was the original. So, use utf8
For any Unicode character set, operations performed using the _general_ci collation are faster than those for the _unicode_ci collation. For example, comparisons for the utf8_general_ci collation are faster, but slightly less correct, than comparisons for utf8_unicode_ci. The reason for this is that utf8_unicode_ci supports mappings such as expansions; that is, when one character compares as equal to combinations of other characters. For example, in German and some other languages “ß” is equal to “ss”. utf8_unicode_ci also supports contractions and ignorable characters. utf8_general_ci is a legacy collation that does not support expansions, contractions, or ignorable characters. It can make only one-to-one comparisons between characters.