diff options
| author | unknown <monty@tik.mysql.fi> | 2002-01-12 15:42:54 +0200 |
|---|---|---|
| committer | unknown <monty@tik.mysql.fi> | 2002-01-12 15:42:54 +0200 |
| commit | 71a5af5b52642cbe64960275f1994f5a57832ff3 (patch) | |
| tree | 5c9b603230485a57877f3b066d095b6668bd1d2e /sql/ha_isam.cc | |
| parent | e8da7ea09ea7ccde96becbd04364df8c4e8424bd (diff) | |
| download | mariadb-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 'sql/ha_isam.cc')
| -rw-r--r-- | sql/ha_isam.cc | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/sql/ha_isam.cc b/sql/ha_isam.cc index a96f42c202f..4b8c40f8fe6 100644 --- a/sql/ha_isam.cc +++ b/sql/ha_isam.cc @@ -109,6 +109,15 @@ int ha_isam::index_read_idx(byte * buf, uint index, const byte * key, return !error ? 0 : my_errno ? my_errno : -1; } +int ha_isam::index_read_last(byte * buf, const byte * key, uint key_len) +{ + statistic_increment(ha_read_key_count,&LOCK_status); + int error=nisam_rkey(file, buf, active_index, key, key_len, + HA_READ_PREFIX_LAST); + table->status=error ? STATUS_NOT_FOUND: 0; + return !error ? 0 : my_errno ? my_errno : -1; +} + int ha_isam::index_next(byte * buf) { statistic_increment(ha_read_next_count,&LOCK_status); |