1 files changed, 0 insertions, 82 deletions
diff --git a/db/post_migrate/20230419094939_swap_merge_request_metrics_id_to_bigint_for_self_hosts.rb b/db/post_migrate/20230419094939_swap_merge_request_metrics_id_to_bigint_for_self_hosts.rb
deleted file mode 100644
index d249ffb9c1b..00000000000
--- a/db/post_migrate/20230419094939_swap_merge_request_metrics_id_to_bigint_for_self_hosts.rb
+++ /dev/null
@@ -1,82 +0,0 @@
-# frozen_string_literal: true
-
-class SwapMergeRequestMetricsIdToBigintForSelfHosts < Gitlab::Database::Migration[2.1]
-  include Gitlab::Database::MigrationHelpers::ConvertToBigint
-
-  disable_ddl_transaction!
-
-  TABLE_NAME = 'merge_request_metrics'
-  TMP_INDEX_NAME = 'tmp_index_mr_metrics_on_target_project_id_merged_at_nulls_last'
-  INDEX_NAME = 'index_mr_metrics_on_target_project_id_merged_at_nulls_last'
-  CONSTRAINT_NAME = 'merge_request_metrics_pkey'
-
-  def up
-    return if should_skip?
-    return if temporary_column_already_dropped?
-    return if columns_alredy_swapped?
-
-    swap
-  end
-
-  def down
-    return if should_skip?
-    return if temporary_column_already_dropped?
-    return unless columns_alredy_swapped?
-
-    swap
-  end
-
-  private
-
-  def swap
-    add_concurrent_index TABLE_NAME, :id_convert_to_bigint, unique: true,
-      name: 'index_merge_request_metrics_on_id_convert_to_bigint'
-    add_concurrent_index TABLE_NAME, 'target_project_id, merged_at DESC NULLS LAST, id_convert_to_bigint DESC',
-      name: TMP_INDEX_NAME
-
-    with_lock_retries(raise_on_exhaustion: true) do
-      execute "LOCK TABLE #{TABLE_NAME} IN ACCESS EXCLUSIVE MODE"
-
-      execute "ALTER TABLE #{TABLE_NAME} RENAME COLUMN id TO id_tmp"
-      execute "ALTER TABLE #{TABLE_NAME} RENAME COLUMN id_convert_to_bigint TO id"
-      execute "ALTER TABLE #{TABLE_NAME} RENAME COLUMN id_tmp TO id_convert_to_bigint"
-
-      function_name = Gitlab::Database::UnidirectionalCopyTrigger
-        .on_table(TABLE_NAME, connection: connection)
-        .name(:id, :id_convert_to_bigint)
-      execute "ALTER FUNCTION #{quote_table_name(function_name)} RESET ALL"
-
-      # Swap defaults of the columns, and change ownership of the sequence to the new id
-      execute "ALTER SEQUENCE merge_request_metrics_id_seq OWNED BY #{TABLE_NAME}.id"
-      change_column_default TABLE_NAME, :id, -> { "nextval('merge_request_metrics_id_seq'::regclass)" }
-      change_column_default TABLE_NAME, :id_convert_to_bigint, 0
-
-      # Swap PK constraint
-      execute "ALTER TABLE #{TABLE_NAME} DROP CONSTRAINT IF EXISTS #{CONSTRAINT_NAME}"
-      rename_index TABLE_NAME, 'index_merge_request_metrics_on_id_convert_to_bigint', CONSTRAINT_NAME
-      execute "ALTER TABLE #{TABLE_NAME} ADD CONSTRAINT #{CONSTRAINT_NAME} PRIMARY KEY USING INDEX #{CONSTRAINT_NAME}"
-
-      # Rename the rest of the indexes (we already hold an exclusive lock, so no need to use DROP INDEX CONCURRENTLY)
-      execute "DROP INDEX IF EXISTS #{INDEX_NAME}"
-      rename_index TABLE_NAME, TMP_INDEX_NAME, INDEX_NAME
-    end
-  end
-
-  def should_skip?
-    com_or_dev_or_test_but_not_jh?
-  end
-
-  def columns_alredy_swapped?
-    table_columns = columns(TABLE_NAME)
-    column_id = table_columns.find { |c| c.name == 'id' }
-    column_id_convert_to_bigint = table_columns.find { |c| c.name == 'id_convert_to_bigint' }
-
-    column_id.sql_type == 'bigint' && column_id_convert_to_bigint.sql_type == 'integer'
-  end
-
-  def temporary_column_already_dropped?
-    table_columns = columns(TABLE_NAME)
-
-    !table_columns.find { |c| c.name == 'id_convert_to_bigint' }
-  end
-end