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The coal_mines_eia923 table includes a field for the location of the mine, which is a mix of 2-letter US state abbreviations, and 3-letter country abbreviations for non-US locations. This is a little bit of a mess to parse... we could use here (and in other mixed contexts) the ISO 3166-2 combination principal subdivision codes instead, or separate country / subdivision fields.
zaneselvans
commented
2 years ago
The
coal_mines_eia923table includes a field for the location of the mine, which is a mix of 2-letter US state abbreviations, and 3-letter country abbreviations for non-US locations. This is a little bit of a mess to parse... we could use here (and in other mixed contexts) the ISO 3166-2 combination principal subdivision codes instead, or separate country / subdivision fields.