presto-hive/src/main/java/io/prestosql/plugin/hive/metastore/SemiTransactionalHiveMetastore.java/SemiTransactionalHiveMetastore/executeAlterTableOperations
class SemiTransactionalHiveMetastore:        private void executeAlterTableOperations()
        {
            for (AlterTableOperation alterTableOperation : alterTableOperations) {
                alterTableOperation.run(delegate);
            }
        }