History of Municipalities 2020 (1:1 000 000): Version History of Base Table Rows

The 'table__history' is a meticulous compilation of data that traces the version history of its base table rows, which is particularly critical for tracking changes over time. Originating from 'Tilastokeskus' (Statistics Finland), the table forms an integral part of the 'tilastointialueet_kunta1000k_2020' dataset collection. The base table contents, defined as 'Kunnat 2020 (1:1 000 000)', translate to 'Municipalities 2020 (1:1 000 000)' in English, which provides a glimpse into the geographical distribution of municipalities in Finland during the year 2020.

Each row in the table is uniquely identified by the combination of start date and row number, allowing for efficient data extraction and version tracking. The start and end dates indicate when the row was extracted from the source and when a new version was subsequently obtained. The presence of a null value in the end date column signifies the most recent version of the row.

Columns bearing the prefix 'geom_' store geographical information that can be utilized for geospatial data analytics. These include details about the geographical shape, centroid, and the x and y coordinates of the center. This data is presented using the WGS 84 coordinate reference system, with longitude preceding latitude.

The table also contains essential information about each municipality, such as its unique ID, name in different languages, and the year the data was collected. For instance, data analysts could use this information to study patterns in geographical changes, track municipal evolution, or even to develop interactive maps for visual representation of the data.