Mysterious ways of migration DSL translation on sqlite

AUTOINCREMENT over plain ROWID is desired for a column that participates
in ordering:
https://www.sqlite.org/autoinc.html

Added default just to match previous output, does not seem really
needed.

ruby_event_store-active_record/lib/ruby_event_store/active_record/generators/templates/create_event_store_events_template.erb

@@ -13,7 +13,7 @@ class CreateEventStoreEvents < ActiveRecord::Migration[<%= migration_version %>]
 
     create_table(:event_store_events_in_streams, force: false) do |t|
       t.string      :stream,      null: false
-      t.integer     :position,    null: true
+      t.integer     :position,    null: true, default: :null
       t.references  :event,       null: false, type: :string, limit: 36, index: true, foreign_key: { to_table: :event_store_events, primary_key: :event_id }
       t.datetime    :created_at,  null: false, precision: 6, index: true
 

ruby_event_store-active_record/spec/migration_test_spec.rb

@@ -132,7 +132,7 @@ module ActiveRecord
         expect(
           sqlite_schema("event_store_events_in_streams")
         ).to eq <<~SCHEMA.strip
-          CREATE TABLE "event_store_events_in_streams" ("id" integer NOT NULL PRIMARY KEY, "stream" varchar NOT NULL, "position" integer DEFAULT NULL, "event_id" varchar(36) NOT NULL, "created_at" datetime(6) NOT NULL, CONSTRAINT "fk_rails_c8d52b5857"
+          CREATE TABLE "event_store_events_in_streams" ("id" integer PRIMARY KEY AUTOINCREMENT NOT NULL, "stream" varchar NOT NULL, "position" integer DEFAULT NULL, "event_id" varchar(36) NOT NULL, "created_at" datetime(6) NOT NULL, CONSTRAINT "fk_rails_c8d52b5857"
           FOREIGN KEY ("event_id")
             REFERENCES "event_store_events" ("event_id")
           )