1 files changed, 0 insertions, 113 deletions
diff --git a/db/post_migrate/20210708011426_finalize_ci_builds_metadata_bigint_conversion.rb b/db/post_migrate/20210708011426_finalize_ci_builds_metadata_bigint_conversion.rb
deleted file mode 100644
index 3879c3c368a..00000000000
--- a/db/post_migrate/20210708011426_finalize_ci_builds_metadata_bigint_conversion.rb
+++ /dev/null
@@ -1,113 +0,0 @@
-# frozen_string_literal: true
-
-class FinalizeCiBuildsMetadataBigintConversion < Gitlab::Database::Migration[1.0]
-  disable_ddl_transaction!
-
-  TABLE_NAME = 'ci_builds_metadata'
-
-  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"]]
-    )
-
-    ensure_batched_background_migration_is_finished(
-      job_class_name: 'CopyColumnUsingBackgroundMigrationJob',
-      table_name: TABLE_NAME,
-      column_name: 'id',
-      job_arguments: [["build_id"], ["build_id_convert_to_bigint"]]
-    )
-
-    swap
-  end
-
-  def down
-    swap
-  end
-
-  private
-
-  def swap
-    # Indexes were pre-created on gitlab.com to avoid slowing down deployments
-    #
-    # rubocop:disable Migration/PreventIndexCreation
-    add_concurrent_index TABLE_NAME, :id_convert_to_bigint, unique: true, name: 'index_ci_builds_metadata_on_id_convert_to_bigint'
-    add_concurrent_index TABLE_NAME, :build_id_convert_to_bigint, where: 'has_exposed_artifacts IS TRUE', name: 'index_ci_builds_metadata_on_build_id_int8_and_exposed_artifacts'
-    create_covering_index TABLE_NAME, 'index_ci_builds_metadata_on_build_id_int8_where_interruptible'
-    add_concurrent_index TABLE_NAME, :build_id_convert_to_bigint, unique: true, name: 'index_ci_builds_metadata_on_build_id_convert_to_bigint'
-    # rubocop:enable Migration/PreventIndexCreation
-
-    add_concurrent_foreign_key TABLE_NAME, :ci_builds, column: :build_id_convert_to_bigint, on_delete: :cascade,
-                                                       reverse_lock_order: true
-
-    with_lock_retries(raise_on_exhaustion: true) do
-      execute "LOCK TABLE ci_builds, #{TABLE_NAME} IN ACCESS EXCLUSIVE MODE"
-
-      # rubocop:disable Migration/WithLockRetriesDisallowedMethod
-      swap_column :id
-      swap_column :build_id
-      # rubocop:enable Migration/WithLockRetriesDisallowedMethod
-
-      # We need to update the trigger function in order to make PostgreSQL to
-      # regenerate the execution plan for it. This is to avoid type mismatch errors like
-      # "type of parameter 15 (bigint) does not match that when preparing the plan (integer)"
-      execute "ALTER FUNCTION #{quote_table_name(Gitlab::Database::UnidirectionalCopyTrigger.on_table(TABLE_NAME, connection: connection).name(:id, :id_convert_to_bigint))} RESET ALL"
-      execute "ALTER FUNCTION #{quote_table_name(Gitlab::Database::UnidirectionalCopyTrigger.on_table(TABLE_NAME, connection: connection).name(:build_id, :build_id_convert_to_bigint))} RESET ALL"
-
-      # Swap defaults for PK
-      execute "ALTER SEQUENCE ci_builds_metadata_id_seq OWNED BY #{TABLE_NAME}.id"
-      change_column_default TABLE_NAME, :id, -> { "nextval('ci_builds_metadata_id_seq'::regclass)" }
-      change_column_default TABLE_NAME, :id_convert_to_bigint, 0
-
-      # Swap defaults for FK
-      change_column_default TABLE_NAME, :build_id, nil
-      change_column_default TABLE_NAME, :build_id_convert_to_bigint, 0
-
-      # Swap PK constraint
-      execute "ALTER TABLE #{TABLE_NAME} DROP CONSTRAINT ci_builds_metadata_pkey CASCADE"
-      rename_index TABLE_NAME, 'index_ci_builds_metadata_on_id_convert_to_bigint', 'ci_builds_metadata_pkey'
-      execute "ALTER TABLE #{TABLE_NAME} ADD CONSTRAINT ci_builds_metadata_pkey PRIMARY KEY USING INDEX ci_builds_metadata_pkey"
-
-      # Rename the rest of the indexes (we already hold an exclusive lock, so no need to use DROP INDEX CONCURRENTLY here)
-      # rubocop:disable Migration/WithLockRetriesDisallowedMethod
-      swap_index 'index_ci_builds_metadata_on_build_id', 'index_ci_builds_metadata_on_build_id_convert_to_bigint'
-      swap_index 'index_ci_builds_metadata_on_build_id_and_has_exposed_artifacts', 'index_ci_builds_metadata_on_build_id_int8_and_exposed_artifacts'
-      swap_index 'index_ci_builds_metadata_on_build_id_and_id_and_interruptible', 'index_ci_builds_metadata_on_build_id_int8_where_interruptible'
-      # rubocop:enable Migration/WithLockRetriesDisallowedMethod
-
-      # Swap FK constraint
-      remove_foreign_key TABLE_NAME, name: concurrent_foreign_key_name(TABLE_NAME, :build_id)
-      rename_constraint(
-        TABLE_NAME,
-        concurrent_foreign_key_name(TABLE_NAME, :build_id_convert_to_bigint),
-        concurrent_foreign_key_name(TABLE_NAME, :build_id)
-      )
-    end
-  end
-
-  def swap_index(old, new)
-    execute "DROP INDEX #{old}"
-    rename_index TABLE_NAME, new, old
-  end
-
-  def swap_column(name)
-    temp_name = "#{name}_tmp"
-    execute "ALTER TABLE #{quote_table_name(TABLE_NAME)} RENAME COLUMN #{quote_column_name(name)} TO #{quote_column_name(temp_name)}"
-    execute "ALTER TABLE #{quote_table_name(TABLE_NAME)} RENAME COLUMN #{quote_column_name(:"#{name}_convert_to_bigint")} TO #{quote_column_name(name)}"
-    execute "ALTER TABLE #{quote_table_name(TABLE_NAME)} RENAME COLUMN #{quote_column_name(temp_name)} TO #{quote_column_name(:"#{name}_convert_to_bigint")}"
-  end
-
-  def create_covering_index(table, name)
-    return if index_exists_by_name?(table, name)
-
-    disable_statement_timeout do
-      execute <<~SQL
-        CREATE INDEX CONCURRENTLY #{name}
-        ON #{table} (build_id_convert_to_bigint) INCLUDE (id_convert_to_bigint)
-        WHERE interruptible = true
-      SQL
-    end
-  end
-end