[teiid-issues] [JBoss JIRA] (TEIID-2246) Incorrect results with TIMESTAMPDIFF
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https://issues.jboss.org/browse/TEIID-2246?page=com.atlassian.jira.plugin...
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Van Halbert updated TEIID-2246:
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Issue Type: Bug (was: Feature Request)
Assignee: Van Halbert (was: Steven Hawkins)
After doing some testing on the 7.4.x branch, it appears there's an overflow issue.
I'll attach 2 patches that do:
- use some suggested code that test for overflow
- added unit tests that confirms the above issue
Incorrect results with TIMESTAMPDIFF
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Key: TEIID-2246
URL: https://issues.jboss.org/browse/TEIID-2246
Project: Teiid
Issue Type: Bug
Components: Server
Affects Versions: 7.4.4
Reporter: Van Halbert
Assignee: Van Halbert
2 issues with TIMESTAMPDIFF:
1.
select TIMESTAMPDIFF(SQL_TSI_DAY,parseDate('2012-01-01',
'yyyy-MM-dd'),parseDate('2304-04-12', 'yyyy-MM-dd'));
result = 106751
If you increase the end date by 1 day:
select TIMESTAMPDIFF(SQL_TSI_DAY,parseDate('2012-01-01',
'yyyy-MM-dd'),parseDate('2304-04-13', 'yyyy-MM-dd'))
result = -106751. I would expected the answer to be 106752
2. Both MS Excel and Oracle give the number of days between 1-Jan-2012 and 12-Apr-2304
as 106752, not the 106751 that EDS is reporting.
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