presto-raptor-legacy/src/main/java/io/prestosql/plugin/raptor/legacy/RaptorTableProperties.java/RaptorTableProperties/getTemporalColumn
class RaptorTableProperties:    public static String getTemporalColumn(Map<String, Object> tableProperties)
    {
        return (String) tableProperties.get(TEMPORAL_COLUMN_PROPERTY);
    }