Re: fast refresh materialized view

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От Michael Paquier
Тема Re: fast refresh materialized view
Дата
Msg-id CAB7nPqTc=-MQVoFAuPq66C=+op0KePVgCGGEJ5x53y6hu8yg2Q@mail.gmail.com
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Ответ на fast refresh materialized view  ("Pradhan, Sabin" <Sabin.Pradhan@finra.org>)
Ответы Re: fast refresh materialized view  (Nguyễn Trần Quốc Vinh <ntquocvinh@gmail.com>)
Список pgsql-general
On Sat, Nov 14, 2015 at 7:01 AM, Pradhan, Sabin <Sabin.Pradhan@finra.org> wrote:
> Does postgres  has fast refresh materialized view  that supports incremental
> refresh. In oracle  , this is achieve  by materialized view log. Not sure
> how to  implement it in postgres.

No. Postgres offers just the possibility to refresh materialized views
while taking a lock on it that allows reads to continue running on it
WITH REFRESH MATERIALIZED VIEW CONCURRENTLY. A necessary condition is
that a UNIQUE index needs to be created on it.

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Michael


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