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From: Andrew Dunstan <[email protected]>
To: alias <[email protected]>
To: PostgreSQL Hackers <[email protected]>
Subject: Re: json_object returning jsonb reuslt different from returning json, returning text
Date: Thu, 28 Apr 2022 15:35:24 -0400
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>
References: <CAJA4AWQ_XbSmsNbW226UqNyRLJ+wb=iQkQMj77cQyoNkqtf=2Q@mail.gmail.com>
	<CAJA4AWTJWt06LA5CAxuFb39X5KmD8fF0JeC1Qrb_jXuR8Lvcyg@mail.gmail.com>
	<[email protected]>


On 2022-04-25 Mo 10:14, Andrew Dunstan wrote:
> On 2022-04-25 Mo 01:19, alias wrote:
>> seems it's a bug around value 0.
>>
>> SELECT JSON_OBJECTAGG(k: v ABSENT ON NULL WITH UNIQUE KEYS RETURNING
>> jsonb)
>> FROM (VALUES (1, 1), (10, NULL),(4, null), (5, null),(6, null),(2, 2))
>> foo(k, v);
>> return:
>> {"1": 1, "2": 2}
>>
>> SELECT JSON_OBJECTAGG(k: v ABSENT ON NULL WITH UNIQUE KEYS RETURNING
>> jsonb)
>> FROM (VALUES (1, 1), (0, NULL),(4, null), (5, null),(6, null),(2, 2))
>> foo(k, v);
>>
>> return
>>  {"0": null, "1": 1, "2": 2}
>
> Thanks for the report.
>
> I don't think there's anything special about '0' except that it sorts
> first. There appears to be a bug in the uniquefying code where the first
> item(s) have nulls. The attached appears to fix it. Please test and see
> if you can break it.


Fix pushed.


cheers


andrew

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

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