diff options
Diffstat (limited to 'db/post_migrate/20210707210916_finalize_ci_stages_bigint_conversion.rb')
-rw-r--r-- | db/post_migrate/20210707210916_finalize_ci_stages_bigint_conversion.rb | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/db/post_migrate/20210707210916_finalize_ci_stages_bigint_conversion.rb b/db/post_migrate/20210707210916_finalize_ci_stages_bigint_conversion.rb new file mode 100644 index 00000000000..2e294a0b2e3 --- /dev/null +++ b/db/post_migrate/20210707210916_finalize_ci_stages_bigint_conversion.rb @@ -0,0 +1,77 @@ +# frozen_string_literal: true + +# See https://docs.gitlab.com/ee/development/migration_style_guide.html +# for more information on how to write migrations for GitLab. + +class FinalizeCiStagesBigintConversion < ActiveRecord::Migration[6.1] + include Gitlab::Database::MigrationHelpers + disable_ddl_transaction! + + TABLE_NAME = 'ci_stages' + + def up + ensure_batched_background_migration_is_finished( + job_class_name: 'CopyColumnUsingBackgroundMigrationJob', + table_name: TABLE_NAME, + column_name: 'id', + job_arguments: [['id'], ['id_convert_to_bigint']] + ) + + swap + end + + def down + swap + end + + def swap + # This will replace the existing ci_stages_pkey index for the primary key + add_concurrent_index TABLE_NAME, :id_convert_to_bigint, unique: true, name: 'index_ci_stages_on_id_convert_to_bigint' + + # This will replace the existing ci_stages_on_pipeline_id_and_id index + add_concurrent_index TABLE_NAME, [:pipeline_id, :id_convert_to_bigint], + name: 'index_ci_stages_on_pipeline_id_and_id_convert_to_bigint', + where: 'status in (0, 1, 2, 8, 9, 10)' + + # Add a foreign key on ci_builds(stage_id_convert_to_bigint), which we'll rename later. Give it the correct final name + fk_stage_id = concurrent_foreign_key_name(:ci_builds, :stage_id) + fk_stage_id_tmp = "#{fk_stage_id}_tmp" + add_concurrent_foreign_key :ci_builds, :ci_stages, column: :stage_id, + target_column: :id_convert_to_bigint, + name: fk_stage_id_tmp, + on_delete: :cascade, + reverse_lock_order: true + + # Now it's time to do things in a transaction + with_lock_retries(raise_on_exhaustion: true) do + execute "LOCK TABLE #{TABLE_NAME}, ci_builds IN ACCESS EXCLUSIVE MODE" + + temp_name = quote_column_name('id_tmp') + id_name = quote_column_name(:id) + id_convert_to_bigint_name = quote_column_name(:id_convert_to_bigint) + execute "ALTER TABLE #{TABLE_NAME} RENAME COLUMN #{id_name} TO #{temp_name}" + execute "ALTER TABLE #{TABLE_NAME} RENAME COLUMN #{id_convert_to_bigint_name} TO #{id_name}" + execute "ALTER TABLE #{TABLE_NAME} RENAME COLUMN #{temp_name} TO #{id_convert_to_bigint_name}" + + function_name = Gitlab::Database::UnidirectionalCopyTrigger.on_table(TABLE_NAME).name(:id, :id_convert_to_bigint) + execute "ALTER FUNCTION #{quote_table_name(function_name)} RESET ALL" + + # Swap defaults + execute "ALTER SEQUENCE ci_stages_id_seq OWNED BY #{TABLE_NAME}.id" + change_column_default TABLE_NAME, :id, -> { "nextval('ci_stages_id_seq'::regclass)"} + change_column_default TABLE_NAME, :id_convert_to_bigint, 0 + + # Swap pkey constraint + # This will drop fk_3a9eaa254d (ci_builds(stage_id) references ci_stages(id)) + execute "ALTER TABLE #{TABLE_NAME} DROP CONSTRAINT ci_stages_pkey CASCADE" + rename_index TABLE_NAME, 'index_ci_stages_on_id_convert_to_bigint', 'ci_stages_pkey' + execute "ALTER TABLE #{TABLE_NAME} ADD CONSTRAINT ci_stages_pkey PRIMARY KEY USING INDEX ci_stages_pkey" + + # Rename the other indexes + execute "DROP INDEX index_ci_stages_on_pipeline_id_and_id" + rename_index TABLE_NAME, 'index_ci_stages_on_pipeline_id_and_id_convert_to_bigint', 'index_ci_stages_on_pipeline_id_and_id' + + rename_constraint(:ci_builds, fk_stage_id_tmp, fk_stage_id) + end + end +end |