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From: Peter Eisentraut <[email protected]>
To: Alex Ignatov <[email protected]>
To: [email protected]
Subject: Re: to_date 'J' format misunderstanding
Date: Sat, 16 Apr 2016 12:39:47 -0400
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>
References: <[email protected]>
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On 03/09/2016 06:42 AM, Alex Ignatov wrote:
> In Table 9-22. Template Patterns for Date/Time Formatting we have
> 
> 'J    Julian Day (days since November 24, 4714 BC at midnight)'
> 
> But there is no any information about what calender use for date of
> November 24, 4714 BC. From wikipedia we know that it is
> November 24, 4714 BC, in the proleptic Gregorian calendar.

I don't think we need to overdocument this.  The Julian Day is defined
outside of PostgreSQL, and those who are considering using it will know
about these kinds of details.



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