Version History of Line Parts in Helsinki City - Street Area

This table contains the version history of the rows in the 'Helsingin kaupunkiympariston toimiala' data source, which originates from the country Finland (ISO country code 'fi'). The table records the changes made to the base table rows over time. Each row in the table has additional columns - '_start_date' and '_end_date' - indicating the extraction dates of the row versions. If the value of '_end_date' is null, it means that the row is the most recent version. The table provides valuable data for data analytics, such as tracking changes in 'paatyyppi' (main type), 'alatyyppi' (sub-type), 'materiaali' (material), 'rakenteel' (structure), 'talvikunno' (winter maintenance), 'tkp_kiiree' (priority), 'tyhjentava' (cleansing), and 'yllapitolu' (maintenance level) over time. It also includes geographical information, such as 'geom', 'kadun_nimi' (street name), 'katualueen' (street area), and 'pituus' (length), which can be used for spatial analysis and visualization.