Re: @ versus ~, redux

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От Matteo Beccati
Тема Re: @ versus ~, redux
Дата
Msg-id 44FBDB6F.90206@beccati.com
обсуждение исходный текст
Ответ на Re: @ versus ~, redux  (Tom Lane <tgl@sss.pgh.pa.us>)
Ответы Re: @ versus ~, redux  (Gregory Stark <stark@enterprisedb.com>)
Re: @ versus ~, redux  (Tom Lane <tgl@sss.pgh.pa.us>)
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Tom Lane ha scritto:
> OK, so if everyone is leaning to #3, the name game remains to be played.
> Do we all agree on this:
> 
>     "x @> y" means "x contains y"
>     "x @< y" means "x is contained in y"
> 
> Are we all prepared to sign a solemn oath to commit hara-kiri if we
> invent a new datatype that gets this wrong?  No?  Maybe these still
> aren't obvious enough.

Does this mean that also contrib/ltree operators will likely change for 
consistency?

ltree @> ltree    - returns TRUE if left argument is an ancestor of right argument 
(or equal).
ltree <@ ltree    - returns TRUE if left argument is a descendant of right argument 
(or equal).


Best regards
--
Matteo Beccati
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