diff options
Diffstat (limited to 'sql/sql_select.cc')
| -rw-r--r-- | sql/sql_select.cc | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/sql/sql_select.cc b/sql/sql_select.cc index 55dc0494594..4393f02f997 100644 --- a/sql/sql_select.cc +++ b/sql/sql_select.cc @@ -4958,7 +4958,18 @@ add_key_part(DYNAMIC_ARRAY *keyuse_array, KEY_FIELD *key_field) } -#define FT_KEYPART (MAX_REF_PARTS+10) +/* + A key part number that means we're using a fulltext scan. + + In order not to confuse it with regular equalities, we need to pick + a number that's greater than MAX_REF_PARTS. + + Hash Join code stores field->field_index in KEYUSE::keypart, so the + number needs to be bigger than MAX_FIELDS, also. + + CAUTION: sql_test.cc has its own definition of FT_KEYPART. +*/ +#define FT_KEYPART (MAX_FIELDS+10) static bool add_ft_keys(DYNAMIC_ARRAY *keyuse_array, |