Re: Incorrect information about GIN-index in RUM's docs - Mailing list pgsql-general
På tirsdag 15. november 2016 kl. 08:48:37, skrev Oleg Bartunov <obartunov@gmail.com>:
On Tue, Nov 15, 2016 at 10:37 AM, Andreas Joseph Krogh <andreas@visena.com> wrote:This item isn't valid, is it?
- There isn't phrase search with
GINindex. This problem relates with previous problem. It is need position information to perform phrase search.RUM being an extention, and having index-access-methods as extentions is new in 9.6, where phrase-search was introduced, this isn't really true, or am I missing something?RUM is very good for phrase search, since it has access to coordinates in index, check slides from PGconf.eu (http://www.sai.msu.su/~megera/postgres/talks/pgconfeu-fts-2016.pdf). Where did you find the citation ?
https://github.com/postgrespro/rum#user-content-introduction
I assume I read the item wrong tho. As it's phrased, it (for me at least but I'm Norwegian) seems like phrase-search is not possible with GIN, which it definitely is. So I assume the real issue, that this item is trying to point out, is that phrase-search isn't really optimized with GIN, just syntactic sugar. And with RUM it is optimized, not just syntactic sugar. Am I correct assuming this?
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Andreas Joseph Krogh
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