bk commit into 5.1 tree (tsmith:1.2576) BUG#30648

[tim]

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ChangeSet@stripped, 2007-08-27 11:46:34-06:00, tsmith@stripped +1 -0
  Bug #30648: Partition handler may not initialize variable used w/ autoincrement
  
  A local variable may be used uninitialized in 
  ha_partition::get_auto_increment().  Initialize it properly.

  sql/ha_partition.cc@stripped, 2007-08-27 11:46:32-06:00, tsmith@stripped +1 -0
    Initialize first_value_part in ha_partition::get_auto_increment() with *first_value before
    it's used in the underlying table handler.  Thanks to Antony for digging up this fix.

diff -Nrup a/sql/ha_partition.cc b/sql/ha_partition.cc
--- a/sql/ha_partition.cc	2007-08-13 07:11:10 -06:00
+++ b/sql/ha_partition.cc	2007-08-27 11:46:32 -06:00
@@ -5445,6 +5445,7 @@ void ha_partition::get_auto_increment(ul
 
   for (pos=m_file, end= m_file+ m_tot_parts; pos != end ; pos++)
   {
+    first_value_part= *first_value;
     (*pos)->get_auto_increment(offset, increment, nb_desired_values,
                                &first_value_part, &nb_reserved_values_part);
     if (first_value_part == ~(ulonglong)(0)) // error in one partition