| From: | Andy Fan <zhihui(dot)fan1213(at)gmail(dot)com> |
|---|---|
| To: | Tatsuo Ishii <ishii(at)sraoss(dot)co(dot)jp> |
| Cc: | nagata(at)sraoss(dot)co(dot)jp, pgsql-hackers <pgsql-hackers(at)postgresql(dot)org>, hoshiai(at)sraoss(dot)co(dot)jp, Michael Paquier <michael(at)paquier(dot)xyz>, Amit Langote <amitlangote09(at)gmail(dot)com>, Alvaro Herrera <alvherre(at)2ndquadrant(dot)com>, Thomas Munro <thomas(dot)munro(at)gmail(dot)com>, kgrittn(at)gmail(dot)com |
| Subject: | Re: Implementing Incremental View Maintenance |
| Date: | 2020-05-08 05:08:50 |
| Message-ID: | CAKU4AWpCbAcNFoh+7gaE44c_aMsC4vQ6rwNF8ce2m-jodnSVBA@mail.gmail.com |
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On Fri, May 8, 2020 at 9:13 AM Tatsuo Ishii <ishii(at)sraoss(dot)co(dot)jp> wrote:
> >> Hi,
> >>
> >> Attached is the latest patch (v15) to add support for Incremental
> Materialized
> >> View Maintenance (IVM). It is possible to apply to current latest
> master branch.
>
> I have tried to use IVM against TPC-DS (http://www.tpc.org/tpcds/)
> queries. TPC-DS models decision support systems and those queries are
> modestly complex. So I thought applying IVM to those queries could
> show how IVM covers real world queries.
>
> +1, This is a smart idea. How did you test it? AFAIK, we can test it
with:
1. For any query like SELECT xxx, we create view like CREATE MATERIAL VIEW
mv_name as SELECT xxx; to test if the features in the query are supported.
2. Update the data and then compare the result with SELECT XXX with SELECT
* from mv_name to test if the data is correctly sync.
Best Regards
Andy Fan
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