1 files changed, 2 insertions, 1 deletions
diff --git a/activerecord/lib/active_record/connection_adapters/mysql_adapter.rb b/activerecord/lib/active_record/connection_adapters/mysql_adapter.rb
index 6ba973041b..7edf5b0f2d 100755
--- a/activerecord/lib/active_record/connection_adapters/mysql_adapter.rb
+++ b/activerecord/lib/active_record/connection_adapters/mysql_adapter.rb
@@ -409,7 +409,8 @@ module ActiveRecord
 
       # SHOW VARIABLES LIKE 'name'
       def show_variable(name)
-        select_value "SHOW VARIABLES LIKE '#{name}'"
+        variables = select_all("SHOW VARIABLES LIKE '#{name}'")
+        variables.first['Value'] unless variables.empty?
       end
 
       private