Re: COMMUTATOR doesn't seem to work
От | D'Arcy Cain |
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Тема | Re: COMMUTATOR doesn't seem to work |
Дата | |
Msg-id | 4FE3F563.10504@druid.net обсуждение исходный текст |
Ответ на | Re: COMMUTATOR doesn't seem to work (Tom Lane <tgl@sss.pgh.pa.us>) |
Ответы |
Re: COMMUTATOR doesn't seem to work
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Список | pgsql-hackers |
On 12-06-22 12:22 AM, Tom Lane wrote: > Um, an operator with different types on left and right cannot be its own > commutator. Understood. I completely misunderstood the purpose of COMMUTATOR. I thought that it was telling the system that the procedure could be called with the arguments reversed if it could not find a specific procedure. I see now what it is for. So I have my type working now but I had to create a new C function that take the opposite argument order. Seems redundant but I could not see a better way. -- D'Arcy J.M. Cain <darcy@druid.net> | Democracy is three wolves http://www.druid.net/darcy/ | and a sheep voting on +1 416 425 1212 (DoD#0082) (eNTP) | what's for dinner. IM: darcy@Vex.Net
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