Initialize bigint conversion for vulnerability_feedback

This is the first step to convert pipeline_id related to bigint for:
- vulnerability_feedback.pipeline_id

See https://docs.gitlab.com/ee/development/database/avoiding_downtime_in_migrations.html#initialize-the-conversion-and-start-migrating-existing-data-release-n

Changelog: added

db/post_migrate/20240401074304_init_conversion_for_vulnerability_feedback_pipeline_id_bigint.rb

+# frozen_string_literal: true
+
+class InitConversionForVulnerabilityFeedbackPipelineIdBigint < Gitlab::Database::Migration[2.2]
+  disable_ddl_transaction!
+  milestone '16.11'
+
+  TABLE = :vulnerability_feedback
+  COLUMN = :pipeline_id
+
+  def up
+    initialize_conversion_of_integer_to_bigint(TABLE, COLUMN)
+  end
+
+  def down
+    revert_initialize_conversion_of_integer_to_bigint(TABLE, COLUMN)
+  end
+end

db/post_migrate/20240404084304_backfill_vulnerability_feedback_pipeline_id_bigint.rb

+# frozen_string_literal: true
+
+class BackfillVulnerabilityFeedbackPipelineIdBigint < Gitlab::Database::Migration[2.2]
+  restrict_gitlab_migration gitlab_schema: :gitlab_main
+  milestone '16.11'
+
+  TABLE = :vulnerability_feedback
+  COLUMN = :pipeline_id
+
+  def up
+    backfill_conversion_of_integer_to_bigint(TABLE, COLUMN)
+  end
+
+  def down
+    revert_backfill_conversion_of_integer_to_bigint(TABLE, COLUMN)
+  end
+end

db/schema_migrations/20240401074304

+c322765311ff994cbd102fe6cf005341a67ab1ff3502cd21f5597fab3ceba29d
\ No newline at end of file

db/schema_migrations/20240404084304

+c613226d8f2a25f7a1fe6cc9bdee229c8d858059c75387f3c915d3c34fee6dbf
\ No newline at end of file

db/structure.sql

@@ -659,6 +659,15 @@ BEGIN
 END;
 $$;
+CREATE FUNCTION trigger_2428b5519042() RETURNS trigger
+    LANGUAGE plpgsql
+    AS $$
+BEGIN
+  NEW."pipeline_id_convert_to_bigint" := NEW."pipeline_id";
+  RETURN NEW;
+END;
+$$;
+
 CREATE FUNCTION trigger_b2d852e1e2cb() RETURNS trigger
     LANGUAGE plpgsql
     AS $$
@@ -17313,7 +17322,8 @@ CREATE TABLE vulnerability_feedback (
     comment_timestamp timestamp with time zone,
     finding_uuid uuid,
     dismissal_reason smallint,
-    migrated_to_state_transition boolean DEFAULT false
+    migrated_to_state_transition boolean DEFAULT false,
+    pipeline_id_convert_to_bigint bigint
 );
 CREATE SEQUENCE vulnerability_feedback_id_seq
@@ -29579,6 +29589,8 @@ CREATE TRIGGER tags_loose_fk_trigger AFTER DELETE ON tags REFERENCING OLD TABLE
 CREATE TRIGGER trigger_10ee1357e825 BEFORE INSERT OR UPDATE ON p_ci_builds FOR EACH ROW EXECUTE FUNCTION trigger_10ee1357e825();
+CREATE TRIGGER trigger_2428b5519042 BEFORE INSERT OR UPDATE ON vulnerability_feedback FOR EACH ROW EXECUTE FUNCTION trigger_2428b5519042();
+
 CREATE TRIGGER trigger_b2d852e1e2cb BEFORE INSERT OR UPDATE ON ci_pipelines FOR EACH ROW EXECUTE FUNCTION trigger_b2d852e1e2cb();
 CREATE TRIGGER trigger_catalog_resource_sync_event_on_project_update AFTER UPDATE ON projects FOR EACH ROW WHEN ((((old.name)::text IS DISTINCT FROM (new.name)::text) OR (old.description IS DISTINCT FROM new.description) OR (old.visibility_level IS DISTINCT FROM new.visibility_level))) EXECUTE FUNCTION insert_catalog_resource_sync_event();

ee/app/models/vulnerabilities/feedback.rb

@@ -3,6 +3,10 @@
 module Vulnerabilities
   class Feedback < ApplicationRecord
     include EachBatch
+    include IgnorableColumns
+
+    ignore_columns :pipeline_id_convert_to_bigint, remove_with: '17.1', remove_after: '2024-06-14'
+
     self.table_name = 'vulnerability_feedback'
 
     paginates_per 50