Regexp在Bigquery中将键值拆分为列

我的列数据看起来像

“dayparts”：[{“day”：“Saturday”，“hours”：[0,1,2,3,4,5,6,7,8,9,10,11,12,13]，{“day”：“Sunday”，“hours”：[0,1,2,3,4,5,6,8,9,10,11,12,13]，{“day”：“星期四”，“hours”：[0,1,2,3,4,5,6,7,8,9,10,12,13]}]

我希望有这样的结果

您可以尝试：

WITH sample AS (
SELECT "1" AS id, "{\"dayparts\":[{\"day\":\"Saturday\",\"hours\":[0,1,2,3,4,5,6,7,8,9,10,11,12,13]},{\"day\":\"Sunday\",\"hours\":[0,1,2,3,4,5,6,7,8,9,10,11,12,13]},{\"day\":\"Thursday\",\"hours\":[0,1,2,3,4,5,6,7,8,9,10,11,12,13]}]}" AS msg
)
SELECT id,
    JSON_VALUE(dparts, '$.day') AS day,
    JSON_QUERY(dparts, '$.hours') AS hours
FROM (
SELECT id,
    JSON_EXTRACT_ARRAY(JSON_QUERY(msg, '$.dayparts')) AS dayparts
FROM sample) t, UNNEST(t.dayparts) dparts

（我添加了封闭的“{”和“}”，以便能够执行JSON操作，如果它们不在那里，我想只是将它们串联起来） （如果希望在结果表中使用实际数组，还可以在“JSON_查询（dparts，$.hours'）”周围添加“JSON_提取_数组”）