The following bug has been logged online:
Bug reference: 2996
Logged by: Anthony Taylor
Email address: [EMAIL PROTECTED]
PostgreSQL version: 8.1.8
Operating system: Linux kernel 2.6.11 (based on Gentoo)
Description: to_char( timestamp, 'DD-Mon-YYYY HH24:MI:SS.MS' )
reports .1000 ms
Details:
When using the "to_char" function to output timestamps, some timestamps
report .1000 milliseconds.
Specifically,
select to_char( time, 'DD-Mon-YYYY HH24:MI:SS.MS' ) from test_time;
Reports:
12-Feb-2007 18:16:34.999
12-Feb-2007 18:16:34.1000
12-Feb-2007 18:16:35.000
I believe the 34.1000 should either be 34.999 or 35.000.
According to the documentation (table 9-21, Template Patterns for Date/Time
Formatting):
MS millisecond (000-999)
Here's a nice little test script:
-- --------------------------------
CREATE TABLE test_time ( time TIMESTAMP );
CREATE OR REPLACE FUNCTION timetest( )
RETURNS VOID
AS $$
BEGIN
FOR i IN 0..100000 LOOP
INSERT INTO test_time VALUES ( timeofday()::timestamp );
END LOOP;
END;
$$ LANGUAGE plpgsql;
SELECT timetest();
select to_char( time, 'DD-Mon-YYYY HH24:MI:SS.MS' ) from test_time;
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