使用的黑斑羚。 from_utc_timestamp(時間戳,字符串時區)
timezone :
for Eastern Time: America/New_York or EST5EDT
for Central Time: America/Chicago or CST6CDT
for Mountain Time: America/Denver or MST7MDT
Phoenix won't observe daylight saving time: America/Phoenix
for Pacific Time: America/Los_Angeles or PST8PDT
for Alaska Time: America/Anchorage or America/Juneau
for Hawaii Time: America/Adak or EST5EDT
Honolulu won't observe day light saving time: Pacific/Honolulu
select from_utc_timestamp('2017-03-11 13:41:22.084','America/Los_Angeles')
2017-03-11 05:41:22.084000000
select from_utc_timestamp('2017-03-12 13:41:22.084','America/Los_Angeles')
2017-03-12 06:41:22.084000000
select from_utc_timestamp('2017-11-03 13:41:22.084','America/Los_Angeles')
2017-11-03 06:41:22.084000000
select from_utc_timestamp('2017-11-04 13:41:22.084','America/Los_Angeles')
2017-11-04 06:41:22.084000000
select from_utc_timestamp('2017-11-05 13:41:22.084','America/Los_Angeles')
2017-11-05 05:41:22.084000000
**Daylight saving time(2017) ends at 2:00 AM on Sunday, November 5**
select from_utc_timestamp('2017-11-05 08:58:00.000','America/Los_Angeles')
2017-11-05 01:58:00 (UTC -7hrs)
select from_utc_timestamp('2017-11-05 08:59:00.000','America/Los_Angeles')
2017-11-05 01:59:00 (UTC -7hrs)
select from_utc_timestamp('2017-11-05 09:00:00.000','America/Los_Angeles')
2017-11-05 01:00:00 (UTC -8hrs)
select from_utc_timestamp('2017-11-05 09:01:00.000','America/Los_Angeles')
2017-11-05 01:01:00 (UTC -8hrs)
這看起來並不像一個S.O. *答案* - 這只是一個觀察列表(不容易閱讀BTW),沒有任何明確的結論或建議。你可以編輯你的答案*(a)*用「代碼樣本」風格格式化代碼樣本; *(b)*闡述根本原因,例如_「PST在Java(Hive)和C++(Impala)中是不明確的和不同的解釋」(我只是在猜測); *(c)*提出解決方法? –
選擇from_utc_timestamp( '2017年11月5日13:41:22.084', '美國/洛杉磯') 這是行不通的。 – vivman
我在2017年11月5日添加了DST更改。我在CDH5.7.6上執行了此操作,但未發現任何問題。 –