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-rw-r--r--activerecord/lib/active_record.rb1
-rw-r--r--activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb1
-rw-r--r--activerecord/lib/active_record/migration.rb1
3 files changed, 1 insertions, 2 deletions
diff --git a/activerecord/lib/active_record.rb b/activerecord/lib/active_record.rb
index 210820062b..f8526bb691 100644
--- a/activerecord/lib/active_record.rb
+++ b/activerecord/lib/active_record.rb
@@ -80,6 +80,7 @@ module ActiveRecord
autoload :Sanitization
autoload :Schema
autoload :SchemaDumper
+ autoload :SchemaMigration
autoload :Scoping
autoload :Serialization
autoload :SessionStore
diff --git a/activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb b/activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb
index 62b0f51bb2..5758ac4569 100644
--- a/activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb
+++ b/activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb
@@ -1,5 +1,4 @@
require 'active_support/deprecation/reporting'
-require 'active_record/schema_migration'
require 'active_record/migration/join_table'
module ActiveRecord
diff --git a/activerecord/lib/active_record/migration.rb b/activerecord/lib/active_record/migration.rb
index 2a9139749d..ac4f53c774 100644
--- a/activerecord/lib/active_record/migration.rb
+++ b/activerecord/lib/active_record/migration.rb
@@ -1,7 +1,6 @@
require "active_support/core_ext/module/delegation"
require "active_support/core_ext/class/attribute_accessors"
require 'active_support/deprecation'
-require 'active_record/schema_migration'
require 'set'
module ActiveRecord