Prepare ci_stages for bigint conversion

Adds bigint column and triggers to prepare for bigint conversion

Changelog: other
MR: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/63488

app/models/ci/stage.rb

@@ -7,6 +7,9 @@ module Ci
     include Ci::HasStatus
     include Gitlab::OptimisticLocking
     include Presentable
+    include IgnorableColumns
+
+    ignore_column :id_convert_to_bigint, remove_with: '14.2', remove_after: '2021-08-22'
 
     enum status: Ci::HasStatus::STATUSES_ENUM
 

db/migrate/20210608072312_initialize_conversion_of_ci_stages_to_bigint.rb

+# frozen_string_literal: true
+
+class InitializeConversionOfCiStagesToBigint < ActiveRecord::Migration[6.1]
+  include Gitlab::Database::MigrationHelpers
+
+  TABLE = :ci_stages
+  COLUMNS = %i(id)
+
+  def up
+    initialize_conversion_of_integer_to_bigint(TABLE, COLUMNS)
+  end
+
+  def down
+    revert_initialize_conversion_of_integer_to_bigint(TABLE, COLUMNS)
+  end
+end

db/migrate/20210608072346_backfill_ci_stages_for_bigint_conversion.rb

+# frozen_string_literal: true
+
+class BackfillCiStagesForBigintConversion < ActiveRecord::Migration[6.1]
+  include Gitlab::Database::MigrationHelpers
+
+  TABLE = :ci_stages
+  COLUMNS = %i(id)
+
+  def up
+    backfill_conversion_of_integer_to_bigint(TABLE, COLUMNS)
+  end
+
+  def down
+    revert_backfill_conversion_of_integer_to_bigint(TABLE, COLUMNS)
+  end
+end

db/schema_migrations/20210608072312

+c395f52ee34cd758df87ba0f74f4528a189704498e133fa53f0dd3f6f31a77b3
\ No newline at end of file

db/schema_migrations/20210608072346

+9f8ff974adc7c20908cd423b2d3f69d8ec16b0fcbb8bfbdb9347a9ff3f3a007a
\ No newline at end of file

db/structure.sql

@@ -125,6 +125,15 @@ BEGIN
 END;
 $$;
 
+CREATE FUNCTION trigger_490d204c00b3() RETURNS trigger
+    LANGUAGE plpgsql
+    AS $$
+BEGIN
+  NEW."id_convert_to_bigint" := NEW."id";
+  RETURN NEW;
+END;
+$$;
+
 CREATE FUNCTION trigger_51ab7cef8934() RETURNS trigger
     LANGUAGE plpgsql
     AS $$
@@ -11195,6 +11204,7 @@ CREATE TABLE ci_stages (
     status integer,
     lock_version integer DEFAULT 0,
     "position" integer,
+    id_convert_to_bigint bigint DEFAULT 0 NOT NULL,
     CONSTRAINT check_81b431e49b CHECK ((lock_version IS NOT NULL))
 );
 
@@ -25314,6 +25324,8 @@ CREATE TRIGGER trigger_21e7a2602957 BEFORE INSERT OR UPDATE ON ci_build_needs FO
 
 CREATE TRIGGER trigger_3f6129be01d2 BEFORE INSERT OR UPDATE ON ci_builds FOR EACH ROW EXECUTE FUNCTION trigger_3f6129be01d2();
 
+CREATE TRIGGER trigger_490d204c00b3 BEFORE INSERT OR UPDATE ON ci_stages FOR EACH ROW EXECUTE FUNCTION trigger_490d204c00b3();
+
 CREATE TRIGGER trigger_51ab7cef8934 BEFORE INSERT OR UPDATE ON ci_builds_runner_session FOR EACH ROW EXECUTE FUNCTION trigger_51ab7cef8934();
 
 CREATE TRIGGER trigger_69523443cc10 BEFORE INSERT OR UPDATE ON events FOR EACH ROW EXECUTE FUNCTION trigger_69523443cc10();