History of Industrial Areas in Open Data Metropolitan Area Land Use Polygon Table - Helsingin kaupunkiympariston toimiala (Finland)

This table contains the version history of the 'seutukartta_maankaytto_teollisuusalueetpolygon' base table. The rows in this table represent different versions of the base table's rows, with each version having a start date and an end date. The '_start_date' column stores the date when the row was extracted from the data source, while the '_end_date' column stores the date when a new version of the row was extracted. If the value in the '_end_date' column is null, it indicates that the row is the most recent version. The table includes additional columns such as '_row_number', 'maankaytto', 'mtryhm', 'geom_geojson', 'geom_geotext', 'geom_type', 'geom_centroid', 'geom_center_x', 'geom_center_y', 'geom', and 'tietopalve'. The data in this table can be utilized for various data analytics purposes. For example, it can be used to analyze the historical changes in industrial areas ('maankaytto') and their classifications ('mtryhm'). The geographic information stored in the 'geom_geojson', 'geom_geotext', 'geom_type', 'geom_centroid', 'geom_center_x', 'geom_center_y', and 'geom' columns can be used to perform spatial analysis and visualization. The '_row_number' column can be used to keep track of the row version numbers. This data is sourced from the website of the 'Helsinki City Environment Sector' in Finland (ISO country code: FI).