Re: BUG #8354: stripped positions can generate nonzero rank in ts_rank_cd

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От Bruce Momjian
Тема Re: BUG #8354: stripped positions can generate nonzero rank in ts_rank_cd
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Msg-id 20140212143151.GA12551@momjian.us
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Ответ на BUG #8354: stripped positions can generate nonzero rank in ts_rank_cd  (alex@hill.net.au)
Ответы Re: BUG #8354: stripped positions can generate nonzero rank in ts_rank_cd  (Alexander Hill <alex@hill.net.au>)
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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@momjian.us>        http://momjian.us
  EnterpriseDB                             http://enterprisedb.com

  + Everyone has their own god. +

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