在Presto中,unix_timestamp函数可以接受一个日期时间字符串作为输入,并返回对应的UNIX时间戳。该函数的语法如下: unix_timestamp(string date, [string pattern]) 其中,`date`参数是待转换的日期时间字符串,`pattern`参数是可选择的格式化模式字符串,用于指定输入字符串的格式。如果未提供`pattern`参数,默认使用ISO ...
presto unixtimestamp转标准日期 用到presto两个函数 1. from_unixtime 2.format_datetime select'1566748800000', substr('1566748800000',1,10)asa, from_unixtime(cast(substr('1566748800000',1,10)asint))asb, --将13位毫秒级的unix timestamp截取到秒级别 format_datetime(from_unixtime(cast(substr('156674...
SQL的语法大的方面是一致的，如SELECT,JOIN,GROUP BY等，但是在一些函数或某些特定功能处理上还是有很大...
select to_date(from_unixtime(unix_timestamp('20210110','yyyyMMdd'))); ## 输出varchar类型日期:2021-01-10 --trino(presto) select date(cast('2021-01-08 10:36:15' as timestamp)) ## 输出date类型日期:2021-01-08 select format_datetime(from_unixtime(to_unixtime(cast('2021-01-08 13:53:...
In Presto to_unixtime(from_unixtime(3.87111e+37)) returns a double: 9.223372036854776E15. This is an approximation of timestamp's long value * 1000. This value can be shuffled fine as well because it is not a Timestamp, but a double. In Velox, Timestamp::kMaxSeconds is 9223372036854775...
DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>时间戳转换为时间</t...
check_git_checkout_not_detached.py updated shebang to python3 since newer machines like M1 Macs have no … Apr 13, 2023 check_git_checkout_not_remote.py updated shebang to python3 since newer machines like M1 Macs have no … Apr 13, 2023 ...
public static double unixTimestamp(@SqlType("varchar(x)") Slice datetime, @SqlType("varchar(y)") Slice formatString) { SimpleDateFormat simpleDateFormat = new SimpleDateFormat(formatString.toStringUtf8()); simpleDateFormat.setTimeZone(TimeZone.getTimeZone("UTC")); ...