in_sql: fix all_tables crash by passing a Config::Element to TableElement#configure

lib/fluent/plugin/in_sql.rb

@@ -219,11 +219,10 @@ def start
             nil
           else
             te = TableElement.new
-            te.configure({
+            te.configure(Fluent::Config::Element.new('table', '', {
               'table' => table_name,
               'tag' => table_name,
-              'update_column' => nil,
-            })
+            }, []))
             te
           end
         end.compact

test/plugin/test_in_sql.rb

@@ -30,6 +30,22 @@ def teardown
     </table>
   ]
 
+  ALL_TABLES_CONFIG = %[
+    adapter postgresql
+    host localhost
+    port 5432
+    database fluentd_test
+
+    username fluentd
+    password fluentd
+
+    schema_search_path public
+
+    tag_prefix db
+
+    all_tables true
+  ]
+
   def create_driver(conf = CONFIG)
     Fluent::Test::Driver::Input.new(Fluent::Plugin::SQLInput).configure(conf)
   end
@@ -64,6 +80,18 @@ def test_configure
     assert_equal("logs", messages.tag)
   end
 
+  def test_all_tables
+    d = create_driver(ALL_TABLES_CONFIG)
+    d.instance.start
+    begin
+      table_names = d.instance.instance_variable_get(:@tables).map(&:table)
+      assert { table_names.include?("messages") }
+      assert { table_names.none? { |table_name| table_name.match?(Fluent::Plugin::SQLInput::SKIP_TABLE_REGEXP) }}
+    ensure
+      d.instance.shutdown
+    end
+  end
+
   def test_message
     d = create_driver(CONFIG + "select_interval 1")
     Message.create!(message: "message 1")