Bug#40176: update as first partitioning statement

breaks auto increment

The auto_increment value was not initialized if
the first statement after opening a table was
an 'UPDATE'.

solution was to check initialize if it was not,
before trying to increase it in update.

1 files changed, 1 insertions, 1 deletions

diff --git a/sql/ha_partition.h b/sql/ha_partition.h
index 685f057dfce..31e5169ac7f 100644
--- a/sql/ha_partition.h
+++ b/sql/ha_partition.h
@@ -878,10 +878,10 @@ private:
   {
     HA_DATA_PARTITION *ha_data= (HA_DATA_PARTITION*) table_share->ha_data;
     lock_auto_increment();
+    DBUG_ASSERT(ha_data->auto_inc_initialized == TRUE);
     /* must check when the mutex is taken */
     if (nr >= ha_data->next_auto_inc_val)
       ha_data->next_auto_inc_val= nr + 1;
-    ha_data->auto_inc_initialized= TRUE;
     unlock_auto_increment();
   }