Merge Revision revid:vasil.dimov@oracle.com-20100504105214-ljj5sy3bk21zl7og from MySQL InnoDB

Original revid:vasil.dimov@oracle.com-20100504105214-ljj5sy3bk21zl7og

Original Authors: Vasil Dimov <vasil.dimov@oracle.com>
Original commit message:
Merge from mysql-5.1-innodb:

  ------------------------------------------------------------
  revno: 3431
  revision-id: mmakela@bk-internal.mysql.com-20100429132743-8rjjgoqbvddr2i5x
  parent: vasil.dimov@oracle.com-20100428103452-6btsq4xv6v1etb5b
  committer: Marko Makela <mmakela@bk-internal.mysql.com>
  branch nick: mysql-5.1-innodb
  timestamp: Thu 2010-04-29 15:27:43 +0200
  message:
    Reduce the next-key locking of READ UNCOMMITTED to match that of
    READ COMMITTED in the InnoDB Plugin. (Bug #48607)
  modified:
    storage/innodb_plugin/ChangeLog 2425@16c675df-0fcb-4bc9-8058-dcc011a37293:branches%2Fzip%2FChangeLog
    storage/innodb_plugin/handler/ha_innodb.cc 2@16c675df-0fcb-4bc9-8058-dcc011a37293:trunk%2Fhandler%2Fha_innodb.cc
    storage/innodb_plugin/lock/lock0lock.c 2@16c675df-0fcb-4bc9-8058-dcc011a37293:trunk%2Flock%2Flock0lock.c
    storage/innodb_plugin/row/row0mysql.c 2@16c675df-0fcb-4bc9-8058-dcc011a37293:trunk%2Frow%2Frow0mysql.c
    storage/innodb_plugin/row/row0sel.c 2@16c675df-0fcb-4bc9-8058-dcc011a37293:trunk%2Frow%2Frow0sel.c
  ------------------------------------------------------------