On 11/01/2010 2:16 PM, Yan Cheng Cheok wrote:
I know I can convert SQL timestamp to unix timestamp, using the following way.
SELECT extract(epoch FROM now());
Now, I have a stored procedure function, which will directly return a table row to the
caller. One of the row field is "timestamp" type.
In my application, I am using libpq. I wish to use libpq functions (or any c/c++
function), to convert "2010-01-11 13:10:55.283" into unix timestamp. Off
course, I can create another stored procedure named
SQLTimestamp2UnixTimestamp
SELECT extract(epoch FROM $1);
But I just wish to accomplish this task with a single c/c++ function call,
without involving stored procedure.
Any suggestion? Thanks!
Wrap strptime(...) to provide a fixed format-string. strptime is is
available on any POSIX-2001 system. It's not present on Windows, so if
you have to target win32 as well you'll need to include your own
implementation on that platform.
See "man 3 strptime"
--
Craig Ringer
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