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Added support of null keys in HEAP tables

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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
This commit is contained in:
unknown 2002-01-12 15:42:54 +02:00
commit 71a5af5b52
31 changed files with 547 additions and 148 deletions
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9
sql/ha_myisammrg.cc
View file

@ -112,6 +112,15 @@ int ha_myisammrg::index_read_idx(byte * buf, uint index, const byte * key,
return error;
}
int ha_myisammrg::index_read_last(byte * buf, const byte * key, uint key_len)
{
statistic_increment(ha_read_key_count,&LOCK_status);
int error=myrg_rkey(file,buf,active_index, key, key_len,
HA_READ_PREFIX_LAST);
table->status=error ? STATUS_NOT_FOUND: 0;
return error;
}
int ha_myisammrg::index_next(byte * buf)
{
statistic_increment(ha_read_next_count,&LOCK_status);