Re: BUG #15587: Partitions with ALTER TABLE ADD CONSTRAINT

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От Alvaro Herrera
Тема Re: BUG #15587: Partitions with ALTER TABLE ADD CONSTRAINT
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Msg-id 201901151826.bdqajmm7p3jk@alvherre.pgsql
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Ответ на Re: BUG #15587: Partitions with ALTER TABLE ADD CONSTRAINT  (Tom Lane <tgl@sss.pgh.pa.us>)
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On 2019-Jan-10, Tom Lane wrote:

> > On 2019-Jan-10, PG Bug reporting form wrote:
> >> ALTER TABLE ONLY t1 ADD CONSTRAINT uniq_t1_i1_i2 UNIQUE (i1, i2);
> >> [ leads to ]
> >> Indexes:
> >> "uniq_t1_i1_i2" UNIQUE CONSTRAINT, btree (i1, i2) INVALID

> I concur that the code is operating as designed.  I think however that
> there's a user-experience problem here, which is that INVALID suggests
> that something's broken.  I wonder if we could improve matters by
> making psql and the docs describe this state of a partitioned index
> as INCOMPLETE.

Hmm, yeah, I can see how that can be confusing.  Not sure of the
difficulty of a fix ... I'll have a think about it.

-- 
Álvaro Herrera                https://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services


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