Search Postgresql Archives

Re: Define hash partition for certain column values

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Values for the key partitioning column are generated randomly and I can't predict their distribution between ranges.
If I just create some ranges I won't have any guarantee that partitions will have similar amount of data. It is possible that I will have 2 or 3 extremely big partitions and a bit of data in others.
 
Thank you,
Iana Golubeva


12.01.2021, 17:55, "Michael Lewis" <mlewis@xxxxxxxxxxx>:
On Tue, Jan 12, 2021 at 1:21 AM Голубева Яна <ishsha@xxxxxxxxx> wrote:
List or range partitioning isn't suitable for my case.
I am using a column of numeric(20) type as a base for partitioning. The values of the column are generated randomly. 
So there will be too many partitions if I use list partitioning as is.

Sorry, but why is range not suited for this? It would seem fairly trivial to create 50 or 1000 partitions to break up the range of values allowed by your field definition.

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Index of Archives]     [Postgresql Jobs]     [Postgresql Admin]     [Postgresql Performance]     [Linux Clusters]     [PHP Home]     [PHP on Windows]     [Kernel Newbies]     [PHP Classes]     [PHP Books]     [PHP Databases]     [Postgresql & PHP]     [Yosemite]

  Powered by Linux