Basically because typeCast now passes GEOMETRY as raw bytes, https://github.com/haxetink/tink_sql/blob/f1434ff6e16d6381cdce14ecc7356649f3f8cd84/src/tink/sql/drivers/node/MySql.hx#L138 and CallProcedure carries no runtime type info. So when it arrives ResultParser, the `Bytes` will be passed through as is: https://github.com/haxetink/tink_sql/blob/f1434ff6e16d6381cdce14ecc7356649f3f8cd84/src/tink/sql/parse/ResultParser.hx#L55