| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | Greg Navis <contact(at)gregnavis(dot)com> |
| Cc: | Artur Zakirov <a(dot)zakirov(at)postgrespro(dot)ru>, Jeff Janes <jeff(dot)janes(at)gmail(dot)com>, "David G(dot) Johnston" <david(dot)g(dot)johnston(at)gmail(dot)com>, "pgsql-general(at)postgresql(dot)org" <pgsql-general(at)postgresql(dot)org> |
| Subject: | Re: [pg_trgm] Making similarity(?, ?) < ? use an index |
| Date: | 2016-06-09 14:12:54 |
| Message-ID: | 13882.1465481574@sss.pgh.pa.us |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-general |
I wrote:
> Greg Navis <contact(at)gregnavis(dot)com> writes:
>> I'm not sure how to make this operator use an index. It seems I need to
>> create an operator class but I'm not sure how.
> What you'd want to do is add it to the existing operator class and then
> teach the class's support functions (mostly, the "consistent" function)
> about it.
BTW, you'd probably find this patch instructive:
although it's doing more than just adding one operator.
regards, tom lane
| From | Date | Subject | |
|---|---|---|---|
| Next Message | rob stone | 2016-06-09 19:15:25 | Re: Automate copy - Postgres 9.2 |
| Previous Message | Tom Lane | 2016-06-09 13:56:04 | Re: [pg_trgm] Making similarity(?, ?) < ? use an index |