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| author | unknown <sergefp@mysql.com> | 2004-05-13 01:38:40 +0400 |
|---|---|---|
| committer | unknown <sergefp@mysql.com> | 2004-05-13 01:38:40 +0400 |
| commit | 3600d09ab4323098676fa51c869a787fec9d42cc (patch) | |
| tree | 34118ff1da06b90ade9507174ddccf92c228286a /sql/sql_select.h | |
| parent | 7e95a257e08e7760f5432704ab22d2d37e6e5f7a (diff) | |
| download | mariadb-git-3600d09ab4323098676fa51c869a787fec9d42cc.tar.gz | |
This is first cset for WL#1394 "Optimize index merge when all involved index ranges include only values with equal keys"
The main idea is to exploit the fact that key scans for "key=const" return ordered sequences of rowids.
include/my_base.h:
Added HA_EXTRA_KEYREAD_PRESERVE_FIELDS flag
include/my_bitmap.h:
Added a couple of utility functions
include/my_sys.h:
Added my_conunt_bits_ushort function
innobase/include/row0mysql.h:
Added support for HA_EXTRA_KEYREAD_PRESERVE_FIELDS
innobase/row/row0sel.c:
Added support for HA_EXTRA_KEYREAD_PRESERVE_FIELDS
mysys/my_bit.c:
Added my_count_bits_ushort function
mysys/my_bitmap.c:
Added a couple of utility functions
sql/ha_berkeley.cc:
Added cmp_ref rowid comparison function.
sql/ha_berkeley.h:
Added cmp_ref rowid comparison function.
sql/ha_heap.h:
Added cmp_ref rowid comparison function.
sql/ha_innodb.cc:
Added cmp_ref rowid comparison function and support from HA_EXTRA_KEYREAD_PRESERVE_FIELDS
sql/ha_innodb.h:
Added cmp_ref rowid comparison function.
sql/handler.h:
Added cmp_ref rowid comparison function.
sql/opt_range.cc:
Added QUICK_ROR_{INTERSECT,UNION}_SELECT classes and related optimizer code
sql/opt_range.h:
Added QUICK_ROR_{INTERSECT,UNION}_SELECT classes
sql/sql_delete.cc:
Changed to use new ROWID comparison function
also always call quick->reset() for quick selects
sql/sql_select.cc:
Account for new quick select types
sql/sql_select.h:
New, proper rowid ordering/comparison function to be used with Unique class etc.
sql/sql_test.cc:
Account for new quick select types
sql/sql_update.cc:
Account for new quick select types
Diffstat (limited to 'sql/sql_select.h')
| -rw-r--r-- | sql/sql_select.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/sql/sql_select.h b/sql/sql_select.h index 9bba4e9318e..9d784e585b1 100644 --- a/sql/sql_select.h +++ b/sql/sql_select.h @@ -329,7 +329,7 @@ uint find_shortest_key(TABLE *table, const key_map *usable_keys); int opt_sum_query(TABLE_LIST *tables, List<Item> &all_fields,COND *conds); /* from sql_delete.cc, used by opt_range.cc */ -extern "C" int refposcmp2(void* arg, const void *a,const void *b); +extern "C" int refpos_order_cmp(void* arg, const void *a,const void *b); /* class to copying an field/item to a key struct */ |