| From: | karavelov(at)mail(dot)bg |
|---|---|
| To: | pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: TS: Limited cover density ranking |
| Date: | 2012-01-27 16:10:14 |
| Message-ID: | d69e8cc378b9e5dda751d81dc7959128.mailbg@mail.bg |
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| Lists: | pgsql-hackers |
And here is the patch, that I forgot to attach
> Hello,
>
> I have developed a variation of cover density ranking functions that counts only covers that are lesser than a specified limit. It is useful for finding combinations of terms that appear nearby one another. Here is an example of usage:
...
>
> Find attached a path agains 9.1.2 sources. I preferred to make a patch, not a separate extension because it is only 1 statement change in calc_rank_cd function. If I have to make an extension a lot of code would be duplicated between backend/utils/adt/tsrank.c and the extension.
>
--
Luben Karavelov
| Attachment | Content-Type | Size |
|---|---|---|
| ts_rank_lcd.diff | text/x-diff | 6.0 KB |
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