Extensions are ordered since Rails 5.2

README.md

@@ -848,7 +848,7 @@ config.active_record.dump_schema_after_migration = `git status db/migrate/ --por
 
 ## Schema Sanity
 
-Columns and extensions can flip order in `db/schema.rb` when you have multiple developers. One way to prevent this is to [alphabetize them](https://www.pgrs.net/2008/03/12/alphabetize-schema-rb-columns/). Add to the end of your `Rakefile`:
+Columns can flip order in `db/schema.rb` when you have multiple developers. One way to prevent this is to [alphabetize them](https://www.pgrs.net/2008/03/12/alphabetize-schema-rb-columns/). Add to the end of your `Rakefile`:
 
 ```ruby
 task "db:schema:dump": "strong_migrations:alphabetize_columns"

lib/strong_migrations/schema_dumper.rb

@@ -17,9 +17,5 @@ def initialize(connection)
     def columns(*args, **options)
       @connection.columns(*args, **options).sort_by(&:name)
     end
-
-    def extensions(*args, **options)
-      @connection.extensions(*args, **options).sort
-    end
   end
 end

test/alphabetize_schema_test.rb

@@ -4,16 +4,6 @@ class AlphabetizeSchemaTest < Minitest::Test
   def test_default
     schema = dump_schema
 
-    if postgresql?
-      expected_extensions = <<-EOS
-  enable_extension "btree_gist"
-  enable_extension "citext"
-  enable_extension "pgcrypto"
-  enable_extension "plpgsql"
-      EOS
-      assert_match expected_extensions, schema
-    end
-
     expected_columns = <<-EOS
     t.string "name"
     t.string "city"
@@ -27,16 +17,6 @@ def test_enabled
         dump_schema
       end
 
-    if postgresql?
-      expected_extensions = <<-EOS
-  enable_extension "btree_gist"
-  enable_extension "citext"
-  enable_extension "pgcrypto"
-  enable_extension "plpgsql"
-      EOS
-      assert_match expected_extensions, schema
-    end
-
     expected_columns = <<-EOS
     t.text "description"
     t.string "interval"