alter event rename".

ALTER EVENT ... RENAME statement hasn't checked privileges
for the target database. It also caused server crashes when
target database was not specified explicitly and there was
no current database.

This fix adds missing privilege check and check for the case
when target database is not specified explicitly or implicitly.

into  mysql.com:/home/cps/mysql/devel/5.1-csv-remove-mmap

into  mysql.com:/home/cps/mysql/devel/5.1-csv-remove-mmap

into  mysql.com:/home/cps/mysql/devel/5.1-csv-remove-mmap

into  rurik.mysql.com:/home/igor/dev/mysql-5.1-0

into  xiphis.org:/home/antony/work2/p2-bug20168.4

into  c-0409e253.1238-1-64736c10.cust.bredbandsbolaget.se:/home/pappa/bug16002

into  c-0409e253.1238-1-64736c10.cust.bredbandsbolaget.se:/home/pappa/bug16002

into  xiphis.org:/home/antony/work2/p2-bug20168.4

into  poseidon.ndb.mysql.com:/home/tomas/mysql-5.1

into  poseidon.ndb.mysql.com:/home/tomas/mysql-5.1-new-ndb

into  poseidon.ndb.mysql.com:/home/tomas/mysql-5.0

- correction of backport error

- make sure to disable bulk insert when check for duplicate key is needed

into mysql.com:/M51/bug18810-5.1

into  c-0409e253.1238-1-64736c10.cust.bredbandsbolaget.se:/home/pappa/bug16002

into  c-0409e253.1238-1-64736c10.cust.bredbandsbolaget.se:/home/pappa/bug16002

into  c-0409e253.1238-1-64736c10.cust.bredbandsbolaget.se:/home/pappa/bug19801

After review fix

After review fix

into  mysql.com:/home/marty/MySQL/mysql-5.1

into  may.pils.ru:/home/svoj/devel/mysql/merge/mysql-5.1

into  mysql.com:/home/marty/MySQL/mysql-5.1

into  neptunus.(none):/home/msvensson/mysql/mysql-5.1

into  poseidon.ndb.mysql.com:/home/tomas/mysql-5.1-new-ndb

into  poseidon.ndb.mysql.com:/home/tomas/mysql-5.1-new-ndb

into  poseidon.ndb.mysql.com:/home/tomas/mysql-5.0

corrupt
  - add infinite retry on drop table temporary error

into  poseidon.ndb.mysql.com:/home/tomas/mysql-5.1-new-ndb

- add infinite retry on drop table temporary error