presto-base-jdbc/src/main/java/io/prestosql/plugin/jdbc/JdbcMetadata.java/JdbcMetadata/finishInsert
class JdbcMetadata:    @Override
    public Optional<ConnectorOutputMetadata> finishInsert(ConnectorSession session, ConnectorInsertTableHandle tableHandle, Collection<Slice> fragments, Collection<ComputedStatistics> computedStatistics)
    {
        JdbcOutputTableHandle jdbcInsertHandle = (JdbcOutputTableHandle) tableHandle;
        jdbcClient.finishInsertTable(JdbcIdentity.from(session), jdbcInsertHandle);
        return Optional.empty();
    }