diff options
Diffstat (limited to 'sql/sql_select.h')
| -rw-r--r-- | sql/sql_select.h | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/sql/sql_select.h b/sql/sql_select.h index df21d337b54..f29729fb5b3 100644 --- a/sql/sql_select.h +++ b/sql/sql_select.h @@ -27,8 +27,10 @@ typedef struct keyuse_t { TABLE *table; Item *val; /* or value if no field */ - uint key,keypart; table_map used_tables; + uint key, keypart, optimize; + key_map keypart_map; + ha_rows ref_table_rows; } KEYUSE; class store_key; @@ -73,7 +75,7 @@ typedef struct st_join_cache { */ enum join_type { JT_UNKNOWN,JT_SYSTEM,JT_CONST,JT_EQ_REF,JT_REF,JT_MAYBE_REF, - JT_ALL, JT_RANGE, JT_NEXT, JT_FT}; + JT_ALL, JT_RANGE, JT_NEXT, JT_FT, JT_REF_OR_NULL}; class JOIN; @@ -85,6 +87,7 @@ typedef struct st_join_table { QUICK_SELECT *quick; Item *on_expr; const char *info; + byte *null_ref_key; int (*read_first_record)(struct st_join_table *tab); int (*next_select)(JOIN *,struct st_join_table *,bool); READ_RECORD read_record; |