Historical Versioning of AVI Regions (1:1 000 000)

The 'table__history' is a historical record of the AVI areas (1:1 000 000) table, providing a chronological view of the data changes. The table is part of the 'tilastointialueet_avi1000k' dataset collection, which is sourced from the 'Tilastokeskus' website in Finland. It is a valuable resource for understanding the evolution of AVI areas over time.

The table consists of several columns that contain a variety of data types. It presents geographic data, which is particularly useful for geospatial analytics. The geographic data, represented in columns starting with 'geom_', uses the WGS 84 coordinate reference system, with the axis order being longitude first, followed by latitude. This geographic information includes the type, the GeoJSON and geotext representations, the centroid, and the center coordinates in both x (longitude) and y (latitude) format.

In addition to the geographic data, the table includes columns for the AVI area identification and names. These are presented in several languages, reflecting the multilingual nature of Finland. There is also a column for the year, indicating the timeframe of each data entry.

Unique to this history table are two additional columns '_start_date' and '_end_date', which provide a timestamp for each change in the data. The '_end_date' being null indicates that the version is the most current. Together with the '_row_number', which denotes the sequence of extraction from the source, these columns form a unique identifier for each row.

Examples of data analytics that could be performed on this table include tracking changes in AVI areas over time, analyzing spatial distribution and trends, or cross-referencing with other datasets to provide rich, multilayered insights.