Version History of Paavo Postal Code Areas Extending to Sea Areas, 2019

The 'table__history' is a history table that keeps track of the version history of its base table rows. It's part of a larger dataset collection that focuses on postal areas extending to sea areas in 2019, sourced from the 'Statistics Finland' (Tilastokeskus) website.

The table contains various columns providing a diverse range of data. It includes columns that provide geographic information, which can be utilized for geospatial data analytics. This geographic information is presented using the WGS 84 coordinate reference system, with axis order longitude first, followed by latitude. For example, the 'geom_centroid' column provides a geographic point that represents the centroid of the postal areas.

The table also includes columns that capture the row's version history. The '_start_date' and '_end_date' columns respectively provide the date when the row was extracted from the data source and the date when a new version of the row was extracted. If the '_end_date' is null, it indicates that the row is the most recent version. Additionally, the '_row_number' column contains the number of the row in the raw data extracted from the source, working alongside the '_start_date' to uniquely identify each row in this version history table.

The table also provides columns like 'namn' and 'nimi' that give the names of the postal areas, and 'pinta_ala' presents the area size. The 'vuosi' column indicates the year of the data, which in this context, is 2019.

This comprehensive data can be utilized in various ways in data analytics. For instance, the geographic data can be used to visualize the evolution of postal areas over time on a map. The area size data can be used to study changes in postal areas, possibly indicating urban expansion or contraction. The version history can be essential for data verification, ensuring the accuracy and timeliness of the data used in these analyses.