diff options
Diffstat (limited to 'innobase/include')
| -rw-r--r-- | innobase/include/dict0mem.h | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/innobase/include/dict0mem.h b/innobase/include/dict0mem.h index 2564fcfb97a..944fad1a8c8 100644 --- a/innobase/include/dict0mem.h +++ b/innobase/include/dict0mem.h @@ -152,8 +152,8 @@ struct dict_col_struct{ }; /* DICT_MAX_COL_PREFIX_LEN is measured in bytes. Starting from 4.1.6, we -define max col prefix len as 3 * 256, so that one can create a column prefix -index on 256 characters of a TEXT field also in the UTF-8 charset. In that +set max col prefix len to < 3 * 256, so that one can create a column prefix +index on 255 characters of a TEXT field also in the UTF-8 charset. In that charset, a character may take at most 3 bytes. */ #define DICT_MAX_COL_PREFIX_LEN 768 @@ -169,9 +169,8 @@ struct dict_field_struct{ type, e.g., INDEX (textcol(25)); must be smaller than DICT_MAX_COL_PREFIX_LEN; NOTE that - in the UTF-8 charset, MySQL reserves - sets this to 3 * the prefix len in - UTF-8 chars */ + in the UTF-8 charset, MySQL sets this + to 3 * the prefix len in UTF-8 chars */ }; /* Data structure for an index tree */ |