Commit 65297c9c authored by heikki@hundin.mysql.fi's avatar heikki@hundin.mysql.fi
Browse files

ha_innodb.cc: 

  Add some comments
ha_innodb.h:
  Remove the flag HA_NOT_READ_PREFIX_LAST from ha_innodb.h: InnoDB has supported this from the start, but not tested yet
parent 3763f841

sql/ha_innodb.cc

+17 −14
Original line number Diff line number Diff line
@@ -2079,7 +2079,10 @@ ha_innobase::index_read( 
					start or end of index; this can

					also contain an InnoDB row id, in

					which case key_len is the InnoDB

					row id length */

					row id length; the key value can

					also be a prefix of a full key value,

					and the last column can be a prefix

					of a full column */

	uint			key_len,/* in: key value length */

	enum ha_rkey_function find_flag)/* in: search flags from my_base.h */

{
@@ -2169,24 +2172,24 @@ ha_innobase::index_read( 
	DBUG_RETURN(error);

}





/*

/***********************************************************************

The following functions works like index_read, but it find the last

  row with the current index prefix.

  This code is disabled until Heikki has verified that InnoDB support the

  HA_READ_PREFIX_LAST flag and removed the HA_NOT_READ_PREFIX_LAST

  flag from ha_innodb.h

*/

row with the current key value or prefix. */



int

ha_innobase::index_read_last(mysql_byte *buf,

			     const mysql_byte *key_ptr,

			     uint key_len)

ha_innobase::index_read_last(

/*=========================*/

			           /* out: 0, HA_ERR_KEY_NOT_FOUND, or an

				   error code */

        mysql_byte*       buf,     /* out: fetched row */

        const mysql_byte* key_ptr, /* in: key value, or a prefix of a full

				   key value */

	uint              key_len) /* in: length of the key val or prefix

				   in bytes */

{

  return index_read(buf, key_ptr, key_len, HA_READ_PREFIX_LAST);

        return(index_read(buf, key_ptr, key_len, HA_READ_PREFIX_LAST));

}





/************************************************************************

Changes the active index of a handle. */

sql/ha_innodb.h

+1 −1
Original line number Diff line number Diff line
@@ -96,7 +96,7 @@ class ha_innobase: public handler 
	ulong index_flags(uint idx) const

	{

	  return (HA_READ_NEXT | HA_READ_PREV | HA_READ_ORDER |

		  HA_NOT_READ_PREFIX_LAST | HA_KEY_READ_ONLY);

		  HA_KEY_READ_ONLY);

	}

  	uint max_record_length() const { return HA_MAX_REC_LENGTH; }

  	uint max_keys()          const { return MAX_KEY; }