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BigQueryで16進数を文字列に変換する

FORMATを使うと、16進数をUTF-8文字列に変換できる。

SELECT FORMAT("%t", FROM_HEX("666f6f626172"));

=> foobar

文字列にならない16進数は、

SELECT FORMAT("%t", FROM_HEX("66f6f62617"));

=> f\xf6\xf6&\x17

こうなる。

参考

https://stackoverflow.com/questions/53669054/from-hex-in-google-bigquery-returns-different-result-than-the-result-on-the-publ

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