Re: appendBinaryStringInfo stuff

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От Peter Eisentraut
Тема Re: appendBinaryStringInfo stuff
Дата
Msg-id 347ad93d-fb14-8109-376b-8930d7d56027@enterprisedb.com
обсуждение исходный текст
Ответ на Re: appendBinaryStringInfo stuff  (Andres Freund <andres@anarazel.de>)
Ответы Re: appendBinaryStringInfo stuff  (David Rowley <dgrowleyml@gmail.com>)
Список pgsql-hackers
On 19.12.22 09:12, Andres Freund wrote:
>> There are a bunch of places in the json code that use
>> appendBinaryStringInfo() where appendStringInfoString() could be used, e.g.,
>>
>>      appendBinaryStringInfo(buf, ".size()", 7);
>>
>> Is there a reason for this?  Are we that stretched for performance?
> strlen() isn't that cheap, so it doesn't generally seem unreasonable. I
> don't think we should add the strlen overhead in places that can
> conceivably be a bottleneck - and some of the jsonb code clearly can be
> that.

AFAICT, the code in question is for the text output of the jsonpath 
type, which is used ... for barely anything?




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