Re: JSON constructors and window functions

On 4/2/22 15:40, Andrew Dunstan wrote:
> On 4/2/22 01:25, Jaime Casanova wrote:
>> I got a crash running the below query on the regression database:
>>
>> """
>> select pg_catalog.json_object_agg_unique(10,
>>             cast(ref_0.level2_no as int4)) 
>>             over (partition by ref_0.parent_no 
>>             order by ref_0.level2_no)
>> from public.transition_table_level2 as ref_0;
>> """
>>
>> Attached the backtrace.
>>
>> PS: I'm cc'ing Andrew and Nikita because my feeling is that this is 
>> f4fb45d15c59d7add2e1b81a9d477d0119a9691a responsability.
>
>
> Hmm. Thanks for the report. The code in json_unique_check_key() looks
> sane enough., so the issue is probably elsewhere. I'll keep digging.



Haven't found the issue yet :-( It happens on the second call for the
partition to  json_check_unique_key().

Here's a more idiomatic and self-contained query that triggers the problem.


select json_objectagg('10' : ref_0.level2 with unique keys) 
    over (partition by ref_0.parent_no order by ref_0.level2)
from (values (1::int,1::int),(1,2),(2,1),(2,2)) as ref_0(parent_no,level2);


cheers


andrew


--
Andrew Dunstan
EDB: https://www.enterprisedb.com