Unified Filiation Documents Computerized Parcels (DUFI)

Re-use of DGFIP data on data.gouv.fr, these are the computerised filiation documents of the parcels (DFI), these documents trace all the parcel changes since the computerisation of the monitoring (survey, reshuffling, etc.) This re-use has the following advantages: * One unified \*.parquet file for all departments * accessible without having to download everything, from the native cloud searchable in SQL * stable in time, all history and updates are in the same file * comfort of use with comprehensible field names, correctly typed, codes with their labels * lists of plots in the form of array, STRUCT or JSON The original consists for each batch analysed of two records and an arbitrary number of columns (in theory up to 175, in fact *only* 129). The unified version presents each lot with a single record, two columns for parent and child plots as a list (e.g. 'ZI0044,ZI0045,ZI0046' in array or \[{"section":"ZI","plots": \[44,45,46]}] in json).