From: Nagaraj Raj <nagaraj.sf@yahoo.com>
To: Pg Bugs <pgsql-bugs@postgresql.org>
Subject: Re: ERROR: insufficient columns in the PRIMARY KEY constraint definition
Date: Tue, 29 Sep 2020 21:41:48 +0000 (UTC)
Message-ID: <221078363.71188.1601415708799@mail.yahoo.com> (raw)
In-Reply-To: <64062533.78364.1601415362244@mail.yahoo.com>
References: <64062533.78364.1601415362244.ref@mail.yahoo.com>
<64062533.78364.1601415362244@mail.yahoo.com>
Added three scenarios, Postgres 11 | db<>fiddle
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Postgres 11 | db<>fiddle
Free online SQL environment for experimenting and sharing.
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On Tuesday, September 29, 2020, 02:36:17 PM PDT, Nagaraj Raj <nagaraj.sf@yahoo.com> wrote:
I recently upgraded the database from PostgreSQL v9.6 to v11.7. we have some partitioned table with `inherence` and planning to migrate them to the `declaration`.
Table DDL:
CREATE TABLE c_account_p( billing_account_guid character varying(40) NOT NULL, ingestion_process_id bigint NOT NULL DEFAULT '-1'::integer, load_dttm timestamp(6) without time zone NOT NULL, ban integer NOT NULL, CONSTRAINT billing_account_pkey PRIMARY KEY (billing_account_guid, ban)) PARTITION by RANGE(load_dttm);
When I try the create table, it's throwing below error:
ERROR: insufficient columns in the PRIMARY KEY constraint definitionDETAIL: PRIMARY KEY constraint on table "l_billing_account_p" lacks column "load_dttm" which is part of the partition key.SQL state: 0A000
Is it mandatory/necessary that the `partition column` should be a primary key? cause if I include `load_dttm` as `PK` then its working fine.
If the partition column should be supposed to be a PK, it's challenging to create a partition by range with the date column, cause the load_dttm column chances to have duplicate if data loaded `COPY`.
Could some please help me to understand this scenario? https://dbfiddle.uk/?rdbms=postgres_11&fiddle=5000c4602c16350d77974868e62dc7c9
Thanks.
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Subject: Re: ERROR: insufficient columns in the PRIMARY KEY constraint definition
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