Re: temporary indexes?

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От melvin6925
Тема Re: temporary indexes?
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Msg-id sry7ivvjde432bxlei1jhh4w.1445456354109@email.android.com
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Ответ на temporary indexes?  (Jonathan Vanasco <postgres@2xlp.com>)
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What Adrian is saying is that there is no need for "temporary" indexes. You can create the idxs on a temp table and they get dropped when you drop the table.



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-------- Original message --------
From: Adrian Klaver <adrian.klaver@aklaver.com>
Date: 10/21/2015 14:50 (GMT-05:00)
To: Jonathan Vanasco <postgres@2xlp.com>, PostgreSQL mailing lists <pgsql-general@postgresql.org>
Subject: Re: [GENERAL] temporary indexes?

On 10/21/2015 11:43 AM, Jonathan Vanasco wrote:
> I couldn't find any mention of this on the archives...
>
> Have the project maintainers ever considered extending CREATE INDEX to support "temporary" indexes like CREATE TEMPORARY TABLE?
>
> When creating temporary tables for analytics/reporting, I've noticed that I often need to create (then drop) indexes on regular tables.  Temporary indexes seemed like a natural fit here, so i was wondering if there was any reason why they're not supported (other than no one wanted it!)

Something like this?:

aklaver@test=> create temporary table temp_test(id int, fld_1 varchar);
CREATE TABLE

aklaver@test=> create index temp_idx on temp_test(fld_1);
CREATE INDEX

aklaver@test=> \d temp_test
       Table "pg_temp_2.temp_test"
  Column |       Type        | Modifiers
--------+-------------------+-----------
  id     | integer           |
  fld_1  | character varying |
Indexes:
     "temp_idx" btree (fld_1)

>


--
Adrian Klaver
adrian.klaver@aklaver.com


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