Petru Ghita <petr...@venaver.info> writes:
> Hello everybody, I was missing a comparison operator for DATE so I
> wrote one after a really fast look into the documentation.

Huh?

regression=# \do <
                                                 List of operators
   Schema   | Name |        Left arg type        |       Right arg type        
| Result type |     Description     
------------+------+-----------------------------+-----------------------------+-------------+---------------------
 ...
 pg_catalog | <    | date                        | date                        
| boolean     | less-than
 ...

> So I started to wonder how is this possible because after doing the
> first comparison using the < operator I really wasn't expecting any of
> the other operators to work at all. But they did!

They were all there before.  I doubt it was using yours even in the <
case, because pg_catalog is normally at the front of the search path.

                        regards, tom lane

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