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-rw-r--r--activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb3
1 files changed, 1 insertions, 2 deletions
diff --git a/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb b/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb
index 8d7fba81f4..b7c7ff1187 100644
--- a/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb
+++ b/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb
@@ -905,8 +905,7 @@ module ActiveRecord
def configure_connection
variables = @config.fetch(:variables, {}).stringify_keys
- # By default, MySQL 'where id is null' selects the last inserted id.
- # Turn this off. http://dev.rubyonrails.org/ticket/6778
+ # By default, MySQL 'where id is null' selects the last inserted id; Turn this off.
variables['sql_auto_is_null'] = 0
# Increase timeout so the server doesn't disconnect us.