database/mariadb
1
0
Fork 0
mirror of https://github.com/MariaDB/server.git synced 2025-07-29 05:21:33 +03:00
Code Activity

Added support of null keys in HEAP tables

Browse Source 
Added ORDER BY optimization
This commit is contained in:
monty@tik.mysql.fi
2002-01-12 15:42:54 +02:00
parent 47408baac6
commit 7dd4eb71fe
31 changed files with 547 additions and 148 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
include/heap.h
View File

@ -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 |<7C>HA_NULL_PART_KEY */
uint keysegs; /* Number of key-segment */
uint length; /* Length of key (automatic) */
HP_KEYSEG *seg;