Applying InnoDB snashot 5.1-ss4699, part 1. Fixes BUG#39320 and other

problems

1) BUG#39320 - innodb crash in file btr/btr0pcur.c line 217 with 
               innodb_locks_unsafe_for_binlog

2) Fixes bug in multi-table semi consistent reads.

3) Fixes email address from dev@innodb.com to innodb_dev_ww@oracle.com

4) Fixes warning message generated by main.innodb test


Detailed revision comments:

r4399 | marko | 2009-03-12 09:38:05 +0200 (Thu, 12 Mar 2009) | 5 lines
branches/5.1: row_sel_get_clust_rec_for_mysql(): Store the cursor position
also for unlock_row().  (Bug #39320)

rb://96 approved by Heikki Tuuri.

r4400 | marko | 2009-03-12 10:06:44 +0200 (Thu, 12 Mar 2009) | 8 lines
branches/5.1: Fix a bug in multi-table semi-consistent reads.
Remember the acquired record locks per table handle (row_prebuilt_t)
rather than per transaction (trx_t), so that unlock_row should successfully
unlock all non-matching rows in multi-table operations.
This deficiency was found while investigating Bug #39320.

rb://94 approved by Heikki Tuuri.

r4481 | marko | 2009-03-19 15:01:48 +0200 (Thu, 19 Mar 2009) | 6 lines
branches/5.1: row_unlock_for_mysql(): Do not unlock records that were
modified by the current transaction.  This bug was introduced or unmasked
in r4400.

rb://97 approved by Heikki Tuuri

r4573 | vasil | 2009-03-30 14:17:13 +0300 (Mon, 30 Mar 2009) | 4 lines
branches/5.1:

Fix email address from dev@innodb.com to innodb_dev_ww@oracle.com

r4574 | vasil | 2009-03-30 14:27:08 +0300 (Mon, 30 Mar 2009) | 38 lines
branches/5.1:

Restore the state of INNODB_THREAD_CONCURRENCY to silence this warning:

  TEST                                      RESULT   TIME (ms)
  ------------------------------------------------------------
  
  worker[1] Using MTR_BUILD_THREAD 250, with reserved ports 12500..12509
  main.innodb                              [ pass ]   8803
  
  MTR's internal check of the test case 'main.innodb' failed.
  This means that the test case does not preserve the state that existed
  before the test case was executed.  Most likely the test case did not
  do a proper clean-up.
  This is the diff of the states of the servers before and after the
  test case was executed:
  mysqltest: Logging to '/tmp/autotest.sh-20090330_033000-5.1.5Hg8CY/mysql-5.1/mysql-test/var/tmp/check-mysqld_1.log'.
  mysqltest: Results saved in '/tmp/autotest.sh-20090330_033000-5.1.5Hg8CY/mysql-5.1/mysql-test/var/tmp/check-mysqld_1.result'.
  mysqltest: Connecting to server localhost:12500 (socket /tmp/autotest.sh-20090330_033000-5.1.5Hg8CY/mysql-5.1/mysql-test/var/tmp/mysqld.1.sock) as 'root', connection 'default', attempt 0 ...
  mysqltest: ... Connected.
  mysqltest: Start processing test commands from './include/check-testcase.test' ...
  mysqltest: ... Done processing test commands.
  --- /tmp/autotest.sh-20090330_033000-5.1.5Hg8CY/mysql-5.1/mysql-test/var/tmp/check-mysqld_1.result	2009-03-30 14:12:31.000000000 +0300
  +++ /tmp/autotest.sh-20090330_033000-5.1.5Hg8CY/mysql-5.1/mysql-test/var/tmp/check-mysqld_1.reject	2009-03-30 14:12:41.000000000 +0300
  @@ -99,7 +99,7 @@
   INNODB_SUPPORT_XA	ON
   INNODB_SYNC_SPIN_LOOPS	20
   INNODB_TABLE_LOCKS	ON
  -INNODB_THREAD_CONCURRENCY	8
  +INNODB_THREAD_CONCURRENCY	16
   INNODB_THREAD_SLEEP_DELAY	10000
   INSERT_ID	0
   INTERACTIVE_TIMEOUT	28800
  
  mysqltest: Result content mismatch
  
  not ok

r4576 | vasil | 2009-03-30 16:25:10 +0300 (Mon, 30 Mar 2009) | 4 lines
branches/5.1:

Revert a change to Makefile.am that I committed accidentally in c4574.

storage/innobase/include/row0mysql.h

@@ -656,6 +656,21 @@ struct row_prebuilt_struct {
 					This eliminates lock waits in some
 					cases; note that this breaks
 					serializability. */
+	ulint		new_rec_locks;	/* normally 0; if
+					srv_locks_unsafe_for_binlog is
+					TRUE or session is using READ
+					COMMITTED isolation level, in a
+					cursor search, if we set a new
+					record lock on an index, this is
+					incremented; this is used in
+					releasing the locks under the
+					cursors if we are performing an
+					UPDATE and we determine after
+					retrieving the row that it does
+					not need to be locked; thus,
+					these can be used to implement a
+					'mini-rollback' that releases
+					the latest record locks */
 	ulint		mysql_prefix_len;/* byte offset of the end of
 					the last requested column */
 	ulint		mysql_row_len;	/* length in bytes of a row in the