Re: create partitioned table with (like table INCLUDING ALL ) failswith "insufficient columns in UNIQUE constraint definition" - Mailing list pgsql-bugs

From Amit Langote
Subject Re: create partitioned table with (like table INCLUDING ALL ) failswith "insufficient columns in UNIQUE constraint definition"
Date
Msg-id f97f9840-1e30-32be-632d-934388436878@lab.ntt.co.jp
Whole thread Raw
In response to Re: create partitioned table with (like table INCLUDING ALL ) fails with "insufficient columns in UNIQUE constraint definition"  (Stuart <sfbarbee@gmail.com>)
List pgsql-bugs
Hi,

On 2018/12/14 8:35, Stuart wrote:
> Amit,
> 
> Thanks for your response.  So partitioning does not recognize a primary key 
> constraint on the partition key as a unique constraint? Shouldn't it?

It does.  When you dropped all UNIQUE constraints on the source table that
didn't contain object_id in it except PRIMARY KEY (object_id), then it did
indeed work, as seen in your first email:


> =# drop index knowledge_categoryfilepathurl_un ;
> DROP INDEX
>
> =# \d+ knowledge

[ ... ]

> Indexes:
>     "knowledge_pk" PRIMARY KEY, btree (object_id), tablespace "pgindex"
> Inherits: products
>
> =# create table knowledge_new (like knowledge INCLUDING ALL ) PARTITION
> BY RANGE ( object_id ) ;
> CREATE TABLE

Thanks,
Amit



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