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Posted to dev@doris.apache.org by 陈明雨 <mo...@163.com> on 2019/12/02 01:08:18 UTC

Re:[DISCUSS] Change default storage mode from AGGREGATE to DUPLICATE

+1


Aggregate storage model does cause trouble for new users.



--
此致!Best Regards
陈明雨 Mingyu Chen

Email:
chenmingyu@apache.org



At 2019-11-28 09:52:30, "Zhao Chun" <zh...@apache.org> wrote:
>Hi all
>
>Currently, Doris will create table as AGGREGATE type if user don't specify
>table's storage model. This default behavior will bring some confusion to
>new user of Doris who is familiar with relational database and is not very
>familiar with Doris storage model. For example, user load two same rows
>into Doris, if the storage model is AGGREGATE Doris will merge these two
>rows in one. Besides this, AGGREGATE model has bad performance than
>duplicate model when user's query pattern don't match.
>
>So, I propose changing the default storage model from AGGREGATE to
>DUPLICATE.
>
>Thanks,
>Zhao Chun