Re: CSVlog vs tabs

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От Andrew Dunstan
Тема Re: CSVlog vs tabs
Дата
Msg-id 4675EA29.7020709@dunslane.net
обсуждение исходный текст
Ответ на Re: CSVlog vs tabs  ("FAST PostgreSQL" <fastpgs@fast.fujitsu.com.au>)
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FAST PostgreSQL wrote:
>
> Andrew Dunstan wrote:
>>
>> Now that we've fixed the partial/interleaved log line issue, I have 
>> returned to trying toi get the CSV log patch into shape. Sadly, it 
>> still needs lots of work, even after Greg Smith and I both attacked 
>> it, so I am now going through it with a fine tooth comb.
>>
>> One issue I notice is that it mangles the log message to add a tab 
>> character before each newline. We do this in standard text logs to 
>> make them more readable for humans. but the whole point of having CSV 
>> logs is to make them machine readable, and I'm rather inclined to 
>> think this sort of behaviour is both unnecessary and undesirable.  So 
>> I'm intending to leave it out for CSV logs.
>>
>> Comments?
>>
> With tab characters in the log, the user has to only enable csvlog to 
> have both machine and human readable logs. The user can use the csvlog 
> always and use it for human reading and load it into the database only 
> if he wants it for further analysis. That was my original intention 
> anyway.

I think it's more important to have the machine readable version not 
embelish the query in any way.



>
> (Also as I wrote the patch some time ago, I forgot how the loaded log 
> gets displayed after a select. If it gets displayed with the tabs, 
> then isn't it desirable that way as well?)
>
>

I don't think tabs will help that much. In psql, expanded output mode is 
likely to be better anyway.

cheers

andrew



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