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Re: ADD FOREIGN KEY fails, but the records exist

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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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