| From: | Bruce Momjian <bruce(at)momjian(dot)us> |
|---|---|
| To: | Alexander Hill <alex(at)hill(dot)net(dot)au> |
| Cc: | pgsql-bugs(at)postgresql(dot)org |
| Subject: | Re: BUG #8354: stripped positions can generate nonzero rank in ts_rank_cd |
| Date: | 2014-02-12 14:31:51 |
| Message-ID: | 20140212143151.GA12551@momjian.us |
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| Thread: | |
| Lists: | pgsql-bugs |
On Wed, Feb 12, 2014 at 09:49:32AM +0800, Alexander Hill wrote:
> Hi Bruce,
>
> In normal use this won't affect any data that ends up in an index.
>
> The only exception would be where somebody has created an index over the result
> of ts_rank_cd - indexing search rank for the most common search terms, maybe?
OK, good.
> But that's true of any function whose result is indexed. What's the upgrade
> policy in that case?
Well, we document that the function output changed, and if anyone is
using the function for an index, they need to rebuild the index, so I
think we are fine fixing this for 9.4.
--
Bruce Momjian <bruce(at)momjian(dot)us> http://momjian.us
EnterpriseDB http://enterprisedb.com
+ Everyone has their own god. +
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