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From: Dimitrios Apostolou <[email protected]>
To: Tom Lane <[email protected]>
Cc: [email protected]
Subject: Re: TRUNCATE ONLY with foreign keys and triggers disabled
Date: Mon, 14 Apr 2025 17:05:12 +0200 (CEST)
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>
References: <[email protected]>
	<[email protected]>
	<[email protected]>

On Mon, 14 Apr 2025, Dimitrios Apostolou wrote:

> On Mon, 14 Apr 2025, Tom Lane wrote:
>
>>  Dimitrios Apostolou <[email protected]> writes:
>>>  While doing TRUNCATE ONLY I get:
>>>     ERROR: cannot truncate a table referenced in a foreign key constraint
>>>  But in my case the table to be truncated is already empty, and the
>>>  TRIGGERS are disabled in all tables.
>>
>>  IIRC, it will let you do it if you truncate both the referenced and
>>  referencing tables in the same command.  The state of the triggers
>>  is not material to this, since TRUNCATE doesn't fire them anyway.
>
> Thanks Tom, however that is not possible in my case, the referenced table is 
> possibly just populated and potentially very big (partitioned table with many 
> sub-partitions).

Terminology correction: I meant the *referencing* table has just been 
populated. I'm trying to delete the *referenced* table and I get the 
error.


Dimitris

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