Version History of Copyright Polygons for 'Helsinki City Environment Sector' from Finland

This table contains the version history of the rows in the 'seutukarttacopyright__copyrightpolygon' table. The rows in this table represent different versions of the data extracted from the website of Helsingin kaupunkiympariston toimiala, which originates from the country 'Finland' (ISO country code: 'fi'). Each row in this table includes the '_start_date' column indicating the date when the version was extracted, and the '_end_date' column indicating the date when a new version was extracted. If the '_end_date' column is null, it means that the corresponding row is the most recent version. The table also includes additional columns such as 'copyright', 'geom_geojson', 'geom_geotext', 'geom_type', 'geom_centroid', 'geom_center_x', and 'geom_center_y' which provide data related to the copyright information and geometry of the polygons. This table can be utilized for various data analytics purposes, such as tracking changes in the copyright information over time or analyzing the spatial characteristics of the polygons.