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-rw-r--r--activerecord/lib/active_record/relation/finder_methods.rb6
1 files changed, 4 insertions, 2 deletions
diff --git a/activerecord/lib/active_record/relation/finder_methods.rb b/activerecord/lib/active_record/relation/finder_methods.rb
index 57ecabb537..cbb2f676c8 100644
--- a/activerecord/lib/active_record/relation/finder_methods.rb
+++ b/activerecord/lib/active_record/relation/finder_methods.rb
@@ -253,9 +253,11 @@ module ActiveRecord
orders = relation.order_values.map { |val| val.presence }.compact
values = @klass.connection.distinct("#{@klass.connection.quote_table_name table_name}.#{primary_key}", orders)
- relation = relation.dup
+ relation = relation.dup.select(values)
+
+ id_rows = @klass.connection.select_all(relation.arel, 'SQL', relation.bind_values)
+ ids_array = id_rows.map {|row| row[primary_key]}
- ids_array = relation.select(values).collect {|row| row[primary_key]}
ids_array.empty? ? raise(ThrowResult) : table[primary_key].in(ids_array)
end