summaryrefslogtreecommitdiff
path: root/include
diff options
context:
space:
mode:
authorunknown <monty@tik.mysql.fi>2002-01-12 15:42:54 +0200
committerunknown <monty@tik.mysql.fi>2002-01-12 15:42:54 +0200
commit71a5af5b52642cbe64960275f1994f5a57832ff3 (patch)
tree5c9b603230485a57877f3b066d095b6668bd1d2e /include
parente8da7ea09ea7ccde96becbd04364df8c4e8424bd (diff)
downloadmariadb-git-71a5af5b52642cbe64960275f1994f5a57832ff3.tar.gz
Added support of null keys in HEAP tables
Added ORDER BY optimization Docs/manual.texi: Added ORDER BY optimisation section heap/_check.c: Cleanup heap/heapdef.h: Added support of null keys in HEAP tables heap/hp_hash.c: Added support of null keys in HEAP tables heap/hp_open.c: Added support of null keys in HEAP tables heap/hp_test2.c: Added support of null keys in HEAP tables heap/hp_write.c: Added support of null keys in HEAP tables include/heap.h: Added support of null keys in HEAP tables include/my_base.h: Support for hash algoritm isam/static.c: Cleanup myisam/mi_static.c: Cleanup sql/Makefile.am: Rename innobase -> innodb sql/ha_berkeley.cc: Added ORDER BY optimization sql/ha_berkeley.h: Added ORDER BY optimization sql/ha_heap.cc: Added support for NULL keys sql/ha_heap.h: Added support for NULL keys sql/ha_isam.cc: Added ORDER BY optimization sql/ha_isam.h: Added ORDER BY optimization sql/ha_isammrg.h: Added ORDER BY optimization sql/ha_myisam.cc: Added ORDER BY optimization sql/ha_myisam.h: Added ORDER BY optimization sql/ha_myisammrg.cc: Added ORDER BY optimization sql/ha_myisammrg.h: Added ORDER BY optimization sql/handler.cc: Rename innobase -> innodb sql/handler.h: Rename innobase -> innodb sql/ha_innodb.cc: Rename innobase -> innodb sql/ha_innodb.h: Rename innobase -> innodb sql/mysqld.cc: Rename innobase -> innodb sql/sql_delete.cc: Rename innobase -> innodb sql/sql_select.cc: Added ORDER BY optimization sql/sql_select.h: Added ORDER BY optimization
Diffstat (limited to 'include')
-rw-r--r--include/heap.h4
-rw-r--r--include/my_base.h3
2 files changed, 5 insertions, 2 deletions
diff --git a/include/heap.h b/include/heap.h
index 9efb873ec93..02b04e2b3ec 100644
--- a/include/heap.h
+++ b/include/heap.h
@@ -78,11 +78,13 @@ typedef struct st_hp_keyseg /* Key-portion */
uint start; /* Start of key in record (from 0) */
uint length; /* Keylength */
uint type;
+ uint null_bit; /* bit set in row+null_pos */
+ uint null_pos;
} HP_KEYSEG;
typedef struct st_hp_keydef /* Key definition with open */
{
- uint flag; /* NOSAME */
+ uint flag; /* HA_NOSAME | HA_NULL_PART_KEY */
uint keysegs; /* Number of key-segment */
uint length; /* Length of key (automatic) */
HP_KEYSEG *seg;
diff --git a/include/my_base.h b/include/my_base.h
index dc88e248469..6494fa93ab9 100644
--- a/include/my_base.h
+++ b/include/my_base.h
@@ -68,7 +68,8 @@ enum ha_rkey_function {
enum ha_key_alg {
HA_KEY_ALG_BTREE=0, /* B-tree, default one */
- HA_KEY_ALG_RTREE=1 /* R-tree, for spatial searches */
+ HA_KEY_ALG_RTREE=1, /* R-tree, for spatial searches */
+ HA_KEY_ALG_HASH=2 /* HASH keys (HEAP tables) */
};
/* The following is parameter to ha_extra() */