Version History of Building Identifier and Polygon, Sourced from Helsinki Urban Environment Sector, Finland
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This table contains the version history of rows extracted from the 'Helsinki Urban Environment Sector' data source in Finland (ISO country code 'fi'). The base table for this history table is related to building identifiers and their corresponding polygons. The table includes columns such as '_start_date' and '_end_date' representing the extraction dates for each row version. Each row also has a unique '_row_number' identifier. This table includes various data fields such as 'rakennustu', 'kohdenimi', 'tekstisuun', 'tekstikoko', 'tekstifont', 'buix_bid', 'paivitetty', 'datanomist', 'geom_geojson', 'geom_geotext', 'geom_type', 'geom_centroid', 'geom_center_x', and 'geom_center_y'. These fields provide valuable information that can be utilized in data analytics. For instance, the 'rakennustu' field could be used to analyze building types, and the 'kohdenimi' field could be utilized to explore specific location names. Additionally, the spatial information provided in the 'geom_geojson', 'geom_geotext', 'geom_type', 'geom_centroid', 'geom_center_x', and 'geom_center_y' fields could be leveraged for various spatial analysis tasks.
Field Descriptions
Name |
Data type |
Description |
_start_date | date | The date indicating the start of the validity period for the row version. |
_end_date | date | The date indicating the end of the validity period for the row version. |
_row_number | long | An additional column used to represent the row number of the version history. |
rakennustu | int | A column containing data related to the building type. |
kohdenimi | string | A column containing data related to the item name. |
tekstisuun | int | A column containing data related to the text alignment. |
tekstikoko | float | A column containing data related to the text size. |
tekstifont | string | A column containing data related to the text font. |
buix_bid | int | A column containing data related to the BID. |
paivitetty | string | A column containing data related to the date of update. |
datanomist | string | A column containing data related to the data analyst. |
geom_geojson | string | A column containing the geojson representation of the geometry data. |
geom_geotext | string | A column containing the geotext representation of the geometry data. |
geom_type | string | A column containing data related to the type of geometry. |
geom_centroid | string | A column containing data related to the centroid of the geometry. |
geom_center_x | double | A column containing data related to the x-coordinate of the center of the geometry. |
geom_center_y | double | A column containing data related to the y-coordinate of the center of the geometry. |
geom | binary | A column containing the geometry data. |