> 2023年8月6日 13:18，Julien Rouhaud <rjuju123(at)gmail(dot)com> 写道：
>
> On Sun, 6 Aug 2023, 12:34 jacktby jacktby, <jacktby(at)gmail(dot)com <mailto:jacktby(at)gmail(dot)com>> wrote:
>> I’m trying to add a new operator for my pg application like greater_equals called “<~>", how many files I need to
>> modify and how to do it? Can you give me an example?
>
>
> you can look at some contrib for some examples of custom operator (and custom datatype) implementation, like citext or btree_gin/gist
I need to build a new datatype. It can contains different datatypes, like ‘(1,’a’,2.0)’,it’s a (interger,string,float) tuple type, and Then I need to add operator for it. How should I do?