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# frozen_string_literal: true
class RemoveTmpEmptyTraversalIdsRootNamespaceIndex < Gitlab::Database::Migration[2.0]
disable_ddl_transaction!
ROOT_NS_INDEX_NAME = 'tmp_index_namespaces_empty_traversal_ids_with_root_namespaces'
def up
remove_concurrent_index :namespaces, :id, name: ROOT_NS_INDEX_NAME
end
def down
where_sql = "parent_id IS NULL AND traversal_ids = '{}'"
add_concurrent_index :namespaces, :id, where: where_sql, name: ROOT_NS_INDEX_NAME
end
end
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