Re: no default hash partition - Mailing list pgsql-hackers

From Alvaro Herrera
Subject Re: no default hash partition
Date
Msg-id 20190807162945.GA28711@alvherre.pgsql
Whole thread Raw
In response to Re: no default hash partition  (Amit Langote <amitlangote09@gmail.com>)
Responses Re: no default hash partition  (Tom Lane <tgl@sss.pgh.pa.us>)
List pgsql-hackers
On 2019-Aug-07, Amit Langote wrote:

> That hash-partitioned tables can't have default partition is mentioned
> in the CREATE TABLE page:
> 
> "If DEFAULT is specified, the table will be created as a default
> partition of the parent table. The parent can either be a list or
> range partitioned table. A partition key value not fitting into any
> other partition of the given parent will be routed to the default
> partition. There can be only one default partition for a given parent
> table."

Actually, it also says this (in the blurb for the PARTITION OF clause):

      Creates the table as a <firstterm>partition</firstterm> of the specified
      parent table. The table can be created either as a partition for specific
      values using <literal>FOR VALUES</literal> or as a default partition
      using <literal>DEFAULT</literal>.  This option is not available for
      hash-partitioned tables.

which I think is sufficient.

-- 
Álvaro Herrera                https://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services



pgsql-hackers by date:

Previous
From: Tom Lane
Date:
Subject: Rethinking opclass member checks and dependency strength
Next
From: Heikki Linnakangas
Date:
Subject: Re: Grouping isolationtester tests in the schedule