Version History of Municipalities 2023 (1:1 000 000) Table

The 'table__history' belongs to the dataset collection 'tilastointialueet_kunta1000k_2023' and serves as a historical record of its base table rows. The name suggests it contains historical data, and indeed, it manages the version history of its base table rows. The base table contents, as described by the data source, 'Tilastokeskus' (Statistics Finland), is 'Municipalities 2023 (1:1 000 000)'. This refers to the municipalities in Finland for the year 2023 at a scale of 1:1 million.

The table data is organized in columns that contain various types of information. The column for row numbers, for example, holds the number of the row in the raw data extracted from the data source. Two additional columns, '_start_date' and '_end_date', are peculiar to this history table. They record the dates when a row was extracted from the data source and when a new version of the same row was extracted, respectively. If the '_end_date' column contains a null value, it indicates that the row is the most recent version.

Geographic information is stored in columns that start with 'geom_'. These columns contain data that can be used for geospatial data analytics. The geographic coordinates are presented using the WGS 84 coordinate reference system, with the axis order being longitude first, followed by latitude.

The table also includes columns for municipality ('kunta'), name ('name', 'namn', 'nimi'), and year ('vuosi'). These provide detailed information about the municipalities, their names in different languages, and the year the data pertains to.

In terms of data analytics, the table provides a wealth of opportunities. The historical data can be used to track changes in municipalities over time. The geographic data allows for geospatial analysis, such as identifying patterns or trends across different regions. Additionally, the multilingual municipality names enable localization for various user groups.