diff options
Diffstat (limited to 'activerecord/lib/active_record/relation/calculations.rb')
-rw-r--r-- | activerecord/lib/active_record/relation/calculations.rb | 11 |
1 files changed, 5 insertions, 6 deletions
diff --git a/activerecord/lib/active_record/relation/calculations.rb b/activerecord/lib/active_record/relation/calculations.rb index 1f9dbdc3d4..d4765a6782 100644 --- a/activerecord/lib/active_record/relation/calculations.rb +++ b/activerecord/lib/active_record/relation/calculations.rb @@ -179,14 +179,13 @@ module ActiveRecord def pluck(column_name) if column_name.is_a?(Symbol) && column_names.include?(column_name.to_s) column_name = "#{connection.quote_table_name(table_name)}.#{connection.quote_column_name(column_name)}" - else - column_name = column_name.to_s end - relation = clone - relation.select_values = [column_name] - klass.connection.select_all(relation.arel).map! do |attributes| - klass.type_cast_attribute(attributes.keys.first, klass.initialize_attributes(attributes)) + result = klass.connection.exec_query(select(column_name).to_sql) + last_column = result.columns.last + + klass.connection.select_all(select(column_name).arel).map! do |attributes| + klass.type_cast_attribute(last_column, klass.initialize_attributes(attributes)) end end |