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Fix for bug #33834: FRAC_SECOND: Applicability not clear in

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documentation

While the manual mentions FRAC_SECOND only for the TIMESTAMPADD()
function, it was also possible to use FRAC_SECOND with DATE_ADD(),
DATE_SUB() and +/- INTERVAL.

Fixed the parser to match the manual, i.e. using FRAC_SECOND for 
anything other than TIMESTAMPADD()/TIMESTAMPDIFF() now produces a 
syntax error.

Additionally, the patch allows MICROSECOND to be used in TIMESTAMPADD/
TIMESTAMPDIFF and marks FRAC_SECOND as deprecated.
This commit is contained in:
kaa@kaamos.(none)
2008-02-25 13:25:57 +03:00
parent f41a5edfc7
commit 5a4e12cb56
3 changed files with 69 additions and 6 deletions
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19
mysql-test/t/func_time.test
View File

@ -804,4 +804,23 @@ select DATE_ADD(20071108, INTERVAL 1 DAY);
select LAST_DAY('2007-12-06 08:59:19.05') - INTERVAL 1 SECOND;
#
# Bug#33834: FRAC_SECOND: Applicability not clear in documentation
#
# Show that he use of FRAC_SECOND, for anything other than
# TIMESTAMPADD / TIMESTAMPDIFF, is a server error.
SELECT TIMESTAMPADD(FRAC_SECOND, 1, '2008-02-18');
SELECT TIMESTAMPDIFF(FRAC_SECOND, '2008-02-17', '2008-02-18');
--error ER_PARSE_ERROR
SELECT DATE_ADD('2008-02-18', INTERVAL 1 FRAC_SECOND);
--error ER_PARSE_ERROR
SELECT DATE_SUB('2008-02-18', INTERVAL 1 FRAC_SECOND);
--error ER_PARSE_ERROR
SELECT '2008-02-18' + INTERVAL 1 FRAC_SECOND;
--error ER_PARSE_ERROR
SELECT '2008-02-18' - INTERVAL 1 FRAC_SECOND;
--echo End of 5.0 tests