将rfc3339字符串转换为带有时区的时间戳

Question

有没有办法将character varying列中的rfc3339字符串正确转换为timestamp with timezone？

Input: "2015-01-28T17:41:52Z"
Expected output: "2015-01-28 17:41:52+00"
Current output: "2015-01-28 17:41:52+01"

我尝试了以下

/* begin dummy data */
WITH messages as (
    select 123 as id, '2015-01-28T17:41:52Z'::text as received
)
/* end dummy data */
SELECT id, received, (to_timestamp(received, 'YYYY-MM-DDThh24:MI:SS')) as d
FROM messages

输入数据无法添加TZ或tz，is available in 9.4 not in 9.3无法添加{{3}}。

Answer 1

RFC3339只是ISO 8601的简介。

PostregreSQL accepts any valid ISO 8601 input为date / timestamp / timestamp with time zone。尝试投射，如：

SELECT '2015-01-28T17:41:52Z'::timestamptz

注意：但是，您的输出（在您的客户端中）将始终位于您的current time zone。