Re: ADD FOREIGN KEY fails, but the records exist

On 2/15/21 10:27 AM, Adrian Klaver wrote:
> On 2/15/21 8:23 AM, Ron wrote:
>> On 2/15/21 10:17 AM, Adrian Klaver wrote:
>>> On 2/15/21 8:12 AM, Ron wrote:
>>>> Postgresql 12.5
>>>>
>
>>> The error:
>>>
>>> DETAIL:  Key (amended_response_id, part_date)=(103309154, 2021-01-06
>>> 00:00:00) is not present in table "employer_response"
>>>
>>> is pointing at 103309154 for amended_response_id = employer_response_id.
>>> You are showing an employer_response_id of 103309156
>>
>> But my query's WHERE clause specifies "amended_response_id = 103309154;" 
>> (I've highlighted it, if you have a GUI MUA.)
>
> Yes but amended_response_id is referencing employer_response_id. So do you
> have a record that matches:
>
> employer_response_id   part_date
>
> 103309154              2021-01-06 00:00:00

The time portions of the part_date fields don't match...

sides=> ALTER TABLE employer_response
    ADD CONSTRAINT amended_response_fk FOREIGN KEY (amended_response_id,
part_date)
        REFERENCES employer_response(employer_response_id, part_date)
    ON DELETE NO ACTION DEFERRABLE INITIALLY DEFERRED ;
ERROR:  insert or update on table "employer_response_p2021_01" violates
foreign key constraint "amended_response_fk"
DETAIL:  Key (amended_response_id, part_date)=(103309154, 2021-01-06
00:00:00) is not present in table "employer_response".
sides=>

sides=> select employer_response_id, amended_response_id, part_date
from strans.employer_response
where amended_response_id = 103309154;
employer_response_id | amended_response_id | part_date
----------------------+---------------------+---------------------
            103309156 | *103309154 *| 2021-01-06*00:00:00*
(1 row)

sides=>
sides=>
sides=> select employer_response_id, amended_response_id, part_date
from strans.employer_response
where employer_response_id = 103309154;
employer_response_id | amended_response_id | part_date
----------------------+---------------------+---------------------
*103309154* |                     | 2021-01-06 *15:14:03*
(1 row)

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