1 files changed, 0 insertions, 65 deletions
diff --git a/db/post_migrate/20210701141346_finalize_ci_builds_stage_id_bigint_conversion.rb b/db/post_migrate/20210701141346_finalize_ci_builds_stage_id_bigint_conversion.rb
deleted file mode 100644
index 776f1ad545d..00000000000
--- a/db/post_migrate/20210701141346_finalize_ci_builds_stage_id_bigint_conversion.rb
+++ /dev/null
@@ -1,65 +0,0 @@
-# frozen_string_literal: true
-
-class FinalizeCiBuildsStageIdBigintConversion < ActiveRecord::Migration[6.1]
-  include Gitlab::Database::MigrationHelpers
-
-  disable_ddl_transaction!
-
-  TABLE_NAME = 'ci_builds'
-
-  def up
-    ensure_batched_background_migration_is_finished(
-      job_class_name: 'CopyColumnUsingBackgroundMigrationJob',
-      table_name: TABLE_NAME,
-      column_name: 'id',
-      job_arguments: [%w[id stage_id], %w[id_convert_to_bigint stage_id_convert_to_bigint]]
-    )
-
-    swap_columns
-  end
-
-  def down
-    swap_columns
-  end
-
-  private
-
-  def swap_columns
-    # Create a copy of the original column's index on the new column
-    add_concurrent_index TABLE_NAME, :stage_id_convert_to_bigint, name: :index_ci_builds_on_converted_stage_id # rubocop:disable Migration/PreventIndexCreation
-
-    # Create a copy of the original column's FK on the new column
-    add_concurrent_foreign_key TABLE_NAME, :ci_stages, column: :stage_id_convert_to_bigint, on_delete: :cascade,
-                                                       reverse_lock_order: true
-
-    with_lock_retries(raise_on_exhaustion: true) do
-      quoted_table_name = quote_table_name(TABLE_NAME)
-      quoted_referenced_table_name = quote_table_name(:ci_stages)
-
-      # Acquire locks up-front, not just to the build table but the FK's referenced table
-      execute "LOCK TABLE #{quoted_referenced_table_name}, #{quoted_table_name} IN ACCESS EXCLUSIVE MODE"
-
-      # Swap the column names of the two columns
-      temporary_name = 'stage_id_tmp'
-      execute "ALTER TABLE #{quoted_table_name} RENAME COLUMN #{quote_column_name(:stage_id)} TO #{quote_column_name(temporary_name)}"
-      execute "ALTER TABLE #{quoted_table_name} RENAME COLUMN #{quote_column_name(:stage_id_convert_to_bigint)} TO #{quote_column_name(:stage_id)}"
-      execute "ALTER TABLE #{quoted_table_name} RENAME COLUMN #{quote_column_name(temporary_name)} TO #{quote_column_name(:stage_id_convert_to_bigint)}"
-
-      # Reset the function so PG drops the plan cache for the incorrect integer type
-      function_name = Gitlab::Database::UnidirectionalCopyTrigger.on_table(TABLE_NAME, connection: connection)
-        .name([:id, :stage_id], [:id_convert_to_bigint, :stage_id_convert_to_bigint])
-      execute "ALTER FUNCTION #{quote_table_name(function_name)} RESET ALL"
-
-      # Remove the original column index, and rename the new column index to the original name
-      execute 'DROP INDEX index_ci_builds_on_stage_id'
-      rename_index TABLE_NAME, :index_ci_builds_on_converted_stage_id, :index_ci_builds_on_stage_id
-
-      # Remove the original column foreign key, and rename the new column foreign key to the original name
-      remove_foreign_key TABLE_NAME, name: concurrent_foreign_key_name(TABLE_NAME, :stage_id)
-      rename_constraint(
-        TABLE_NAME,
-        concurrent_foreign_key_name(TABLE_NAME, :stage_id_convert_to_bigint),
-        concurrent_foreign_key_name(TABLE_NAME, :stage_id))
-    end
-  end
-end