Postgresql在TIMESTAMP WITH TIMEZONE中存储时区信息？

Postgresql stores timezone information in TIMESTAMP WITH TIMEZONE?

我试图理解PostgreSQL如何处理TIMESTAMP WITH TIMEZONE类型，并且我遇到了理论与实践之间的差异。

根据文档和其他堆栈溢出帖子，

For timestamp with time zone, the internally stored value is always in UTC ... When a timestamp with time zone value is output, it is always converted from UTC to the current timezone zone.

我相信这意味着任何给定SELECT语句中的所有时间戳都将位于相同/当前时区中。但是，这就是我所看到的：
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interview_timestamp是TIMESTAMP WITH TIMEZONE。这让我大吃一惊。