On 14/8/19 8:47 PM, Richard Hipp wrote:
> On 8/14/19, Adrian Ho <ml+sql...@03s.net> wrote:
>> Here's a Dirty Little Secret: All the SQLite date functions are centered
>> around strftime(), which is not implemented in a strictly correct sense
>> in *every* Unix-like platform I've seen.
> Not true.
>
> SQLite implements its own date and time computations, based on
> algorithms taken from Astronomical Algorithms, 2nd Edition, 1998,
> ISBN 0-943396-61-1. See https://sqlite.org/src/file/src/date.c for the
> latest source code.
>
> An obscure exception is if you compile with
> -DSQLITE_OMIT_DATETIME_FUNCS.  In that case SQLite does invoke the
> system strftime() routine as a fallback implementation for the
> keywords CURRENT_TIME, CURRENT_DATE, and CURRENT_TIMESTAMP.  But this
> only happens when you use the obscure -DSQLITE_OMIT_DATETIME_FUNCS
> compile-time option. I am aware of nobody who actually does that.
Apologies, I did indeed missing the #ifdef SQLITE_OMIT_DATETIME_FUNCS
around the currentTimeFunc() definition.

-- 
Best Regards,
Adrian

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