1 files changed, 2 insertions, 24 deletions
diff --git a/activerecord/lib/active_record/connection_adapters/abstract/database_statements.rb b/activerecord/lib/active_record/connection_adapters/abstract/database_statements.rb
index 5b24a467ec..feacdf6931 100644
--- a/activerecord/lib/active_record/connection_adapters/abstract/database_statements.rb
+++ b/activerecord/lib/active_record/connection_adapters/abstract/database_statements.rb
@@ -35,7 +35,7 @@ module ActiveRecord
           sql, binds = visitor.compile(arel.ast, collector)
           query = klass.query(sql)
         else
-          collector = PartialQueryCollector.new
+          collector = klass.partial_query_collector
           parts, binds = visitor.compile(arel.ast, collector)
           query = klass.partial_query(parts)
         end
@@ -379,7 +379,7 @@ module ActiveRecord
           build_fixture_sql(fixtures, table_name)
         end.compact
 
-        table_deletes = tables_to_delete.map { |table| "DELETE FROM #{quote_table_name table}".dup }
+        table_deletes = tables_to_delete.map { |table| +"DELETE FROM #{quote_table_name table}" }
         total_sql = Array.wrap(combine_multi_statements(table_deletes + fixture_inserts))
 
         disable_referential_integrity do
@@ -507,28 +507,6 @@ module ActiveRecord
             value
           end
         end
-
-        class PartialQueryCollector
-          def initialize
-            @parts = []
-            @binds = []
-          end
-
-          def <<(str)
-            @parts << str
-            self
-          end
-
-          def add_bind(obj)
-            @binds << obj
-            @parts << Arel::Nodes::BindParam.new(1)
-            self
-          end
-
-          def value
-            [@parts, @binds]
-          end
-        end
     end
   end
 end