diff --git a/activerecord/lib/active_record/relation/predicate_builder.rb b/activerecord/lib/active_record/relation/predicate_builder.rb
index 885c26d7aa..f3286846d2 100644
--- a/activerecord/lib/active_record/relation/predicate_builder.rb
+++ b/activerecord/lib/active_record/relation/predicate_builder.rb
@@ -86,6 +86,18 @@ module ActiveRecord
               expand_from_hash(query).reduce(&:and)
             end
             queries.reduce(&:or)
+          elsif table.aggregated_with?(key)
+            mapping = table.reflect_on_aggregation(key).mapping
+            queries = Array.wrap(value).map do |object|
+              mapping.map do |field_attr, aggregate_attr|
+                if mapping.size == 1 && !object.respond_to?(aggregate_attr)
+                  build(table.arel_attribute(field_attr), object)
+                else
+                  build(table.arel_attribute(field_attr), object.send(aggregate_attr))
+                end
+              end.reduce(&:and)
+            end
+            queries.reduce(&:or)
           # FIXME: Deprecate this and provide a public API to force equality
           elsif (value.is_a?(Range) || value.is_a?(Array)) &&
             table.type(key.to_s).respond_to?(:subtype)
diff --git a/activerecord/lib/active_record/relation/where_clause_factory.rb b/activerecord/lib/active_record/relation/where_clause_factory.rb
index 4ae94f4bfe..92b720068c 100644
--- a/activerecord/lib/active_record/relation/where_clause_factory.rb
+++ b/activerecord/lib/active_record/relation/where_clause_factory.rb
@@ -14,7 +14,6 @@ module ActiveRecord
           parts = [klass.sanitize_sql(other.empty? ? opts : ([opts] + other))]
         when Hash
           attributes = predicate_builder.resolve_column_aliases(opts)
-          attributes = klass.send(:expand_hash_conditions_for_aggregates, attributes)
           attributes.stringify_keys!
 
           parts = predicate_builder.build_from_hash(attributes)
diff --git a/activerecord/lib/active_record/table_metadata.rb b/activerecord/lib/active_record/table_metadata.rb
index 0459cbdc59..507f08a974 100644
--- a/activerecord/lib/active_record/table_metadata.rb
+++ b/activerecord/lib/active_record/table_metadata.rb
@@ -65,6 +65,14 @@ module ActiveRecord
       association && association.polymorphic?
     end
 
+    def aggregated_with?(aggregation_name)
+      klass && reflect_on_aggregation(aggregation_name)
+    end
+
+    def reflect_on_aggregation(aggregation_name)
+      klass.reflect_on_aggregation(aggregation_name)
+    end
+
     # TODO Change this to private once we've dropped Ruby 2.2 support.
     # Workaround for Ruby 2.2 "private attribute?" warning.
     protected
diff --git a/activerecord/test/cases/finder_test.rb b/activerecord/test/cases/finder_test.rb
index fabfc4574c..b413212e26 100644
--- a/activerecord/test/cases/finder_test.rb
+++ b/activerecord/test/cases/finder_test.rb
@@ -868,13 +868,14 @@ class FinderTest < ActiveRecord::TestCase
     assert_equal customers(:david), found_customer
   end
 
-  def test_hash_condition_find_with_aggregate_having_three_mapping_array
+  def test_hash_condition_find_with_aggregate_having_three_mappings_array
     david_address = customers(:david).address
     zaphod_address = customers(:zaphod).address
+    barney_address = customers(:barney).address
     assert_kind_of Address, david_address
     assert_kind_of Address, zaphod_address
-    found_customers = Customer.where(address: [david_address, zaphod_address])
-    assert_equal [customers(:david), customers(:zaphod)], found_customers
+    found_customers = Customer.where(address: [david_address, zaphod_address, barney_address])
+    assert_equal [customers(:david), customers(:zaphod), customers(:barney)], found_customers.sort_by(&:id)
   end
 
   def test_hash_condition_find_with_aggregate_having_one_mapping_array
@@ -883,7 +884,7 @@ class FinderTest < ActiveRecord::TestCase
     assert_kind_of Money, david_balance
     assert_kind_of Money, zaphod_balance
     found_customers = Customer.where(balance: [david_balance, zaphod_balance])
-    assert_equal [customers(:david), customers(:zaphod)], found_customers
+    assert_equal [customers(:david), customers(:zaphod)], found_customers.sort_by(&:id)
   end
 
   def test_hash_condition_find_with_aggregate_attribute_having_same_name_as_field_and_key_value_being_aggregate
diff --git a/activerecord/test/fixtures/customers.yml b/activerecord/test/fixtures/customers.yml
index 0399ff83b9..7d6c1366d0 100644
--- a/activerecord/test/fixtures/customers.yml
+++ b/activerecord/test/fixtures/customers.yml
@@ -23,4 +23,13 @@ barney:
   address_street: Quiet Road
   address_city: Peaceful Town
   address_country: Tranquil Land
-  gps_location: NULL
\ No newline at end of file
+  gps_location: NULL
+
+mary:
+  id: 4
+  name: Mary
+  balance: 1
+  address_street: Funny Street
+  address_city: Peaceful Town
+  address_country: Nation Land
+  gps_location: NULL