| From: | Alexander Korotkov <a(dot)korotkov(at)postgrespro(dot)ru> |
|---|---|
| To: | pgsql-hackers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Fix KNN GiST ordering type |
| Date: | 2016-02-01 16:31:48 |
| Message-ID: | CAPpHfdt19FwQXarYjkzxb3oxmv-KAn3FLuZrooARE_U3H3CV9g@mail.gmail.com |
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| Lists: | pgsql-hackers |
Hi!
KNN GiST detects which type it should return by returning type of ordering
operator.
But it appears that type of sk_func is detected after it was replaced with
distance function. That is wrong: distance function should always return
float8.
I think it is just a typo.
Should be backpatched to 9.5.
------
Alexander Korotkov
Postgres Professional: http://www.postgrespro.com
The Russian Postgres Company
| Attachment | Content-Type | Size |
|---|---|---|
| fix-knn-gist-ordering-type.patch | application/octet-stream | 991 bytes |
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