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[英]How to convert PostgreSQL time without time zone to date in JavaScript?
[英]How to compare date in PostgreSQL timestamp with time zone?
我在PostgreSQL中有一个字段,该字段具有:“带有时区比较的时间戳”
我需要使用JS的数据范围比较
var start = Date.UTC(2012,02,30);//1333065600000
var end = Date.UTC(2013,02,30); //1364601600000
结果为bigint数字:
如何在sql PostgreSQL请求中使用start(1333065600000)和end(1364601600000)?
尝试这样的事情:
select *
from my_table
where date_field between to_timestamp(1333065600000) and to_timestamp(1364601600000);
这本质上与TO_TIMESTAMP
相同,但是如果服务器不是以UTC运行,则转换为UTC时区。
SELECT * FROM table WHERE date BETWEEN
((TIMESTAMP WITH TIME ZONE 'epoch' + 1333065600 * INTERVAL '1 second') AT TIME ZONE 'UTC')
AND
((TIMESTAMP WITH TIME ZONE 'epoch' + 1364601600 * INTERVAL '1 second') AT TIME ZONE 'UTC');
请注意,Javascript时代精度为毫秒,而Unix时代仅为秒。 您必须舍弃输入值的最后三位数字(就像我在上面的示例中所做的那样),或者除以1000(下面的示例)。
SELECT TIMESTAMP WITH TIME ZONE 'epoch' + 1333065600000/1000 * INTERVAL '1 second') AT TIME ZONE UTC;
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