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Re: [HACKERS] [POC] hash partitioning - Mailing list pgsql-hackers

From Robert Haas
Subject Re: [HACKERS] [POC] hash partitioning
Date
Msg-id CA+TgmoY5JC+5oN=BV0N=Y_HTiaATzuD0ocwedxbQ0SkmqqPRLQ@mail.gmail.com
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In response to Re: [HACKERS] [POC] hash partitioning  (amul sul <sulamul@gmail.com>)
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On Thu, Nov 2, 2017 at 1:45 PM, amul sul <sulamul@gmail.com> wrote:
> Yes, you are correct, column involved in the partitioning are immutable.
>
> I was just worried about any change in the partition key column that
> might change selected hash function.

Any such change, even if it were allowed, would have to take
AccessExclusiveLock on the child.

-- 
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company


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