Hi, Andrew Thank you for immediate replying. I'm relieved.
Regards. -- Yusuke, Egashira -----Original Message----- From: Andrew Gierth [mailto:and...@tao11.riddles.org.uk] Sent: Thursday, January 17, 2019 3:56 PM To: Egashira, Yusuke/江頭 勇佑 <egashira.yus...@jp.fujitsu.com> Cc: 'pgsql-gene...@postgresql.org' <pgsql-gene...@postgresql.org> Subject: Re: Question about array_to_string()'s behavior and the behavior might be changed in the future or not >>>>> "Egashira" == Egashira, Yusuke <egashira.yus...@jp.fujitsu.com> writes: Egashira> Hi, Egashira> I have a question about array_to_string(). Egashira> I think array_to_string() concatenates always array elements Egashira> from the "beginning" of the array elements and this rule will Egashira> not be changed on the future minor releases. Egashira> Is my understanding correct? The order of elements in the original array will always be preserved in the string output, yes. Egashira> For example, I understand that array_to_string() "never" Egashira> output like following result now and in the future, is my Egashira> understanding correct? Yes. -- Andrew (irc:RhodiumToad)
