Set SQL_AUTO_IS_NULL=0 by default when connecting to MySQL via the jd…

…bc adapter

CHANGELOG

@@ -1,5 +1,7 @@
 === HEAD
 
+* Set SQL_AUTO_IS_NULL=0 by default when connecting to MySQL via the swift and jdbc adapters (jeremyevans)
+
 * Fix bug in multiple column IN/NOT IN emulation when a model dataset is used (jeremyevans)
 
 * Add support for filtering and excluding by association datasets (jeremyevans)

lib/sequel/adapters/jdbc/mysql.rb

@@ -56,6 +56,15 @@ def requires_return_generated_keys?
         def schema_column_type(db_type)
           db_type == 'tinyint(1)' ? :boolean : super
         end
+
+        # By default, MySQL 'where id is null' selects the last inserted id.
+        # Turn that off unless explicitly enabled.
+        def setup_connection(conn)
+          super
+          sql = "SET SQL_AUTO_IS_NULL=0"
+          log_yield(sql){conn.execute(sql)} unless opts[:auto_is_null]
+          conn
+        end
       end
 
       # Dataset class for MySQL datasets accessed via JDBC.

lib/sequel/adapters/swift/mysql.rb

@@ -29,6 +29,7 @@ def schema_column_type(db_type)
         # By default, MySQL 'where id is null' selects the last inserted id.
         # Turn that off unless explicitly enabled.
         def setup_connection(conn)
+          super
           sql = "SET SQL_AUTO_IS_NULL=0"
           log_yield(sql){conn.execute(sql)} unless opts[:auto_is_null]
           conn