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# frozen_string_literal: true
class AddIssuesNamespaceIdFkAndIndex < Gitlab::Database::Migration[2.0]
disable_ddl_transaction!
INDEX_NAME = 'index_issues_on_namespace_id'
def up
add_concurrent_index :issues, :namespace_id, name: INDEX_NAME
add_concurrent_foreign_key :issues, :namespaces,
column: :namespace_id,
on_delete: :nullify,
reverse_lock_order: true
end
def down
with_lock_retries do
remove_foreign_key_if_exists :issues, column: :namespace_id
end
remove_concurrent_index_by_name :issues, INDEX_NAME
end
end
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