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Bug #79496 Query with period_diff works only if using LIMIT
Submitted: 2020-04-19 21:52 UTC Modified: 2020-05-03 04:22 UTC
Votes:2
Avg. Score:5.0 ± 0.0
Reproduced:1 of 1 (100.0%)
Same Version:0 (0.0%)
Same OS:0 (0.0%)
From: shoresofnowhere at gmail dot com Assigned:
Status: No Feedback Package: MySQLi related
PHP Version: 7.4.5 OS: windows 10
Private report: No CVE-ID: None
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 [2020-04-19 21:52 UTC] shoresofnowhere at gmail dot com 
Description:
------------
Connected to MySQL 8.0.19, having a utf8_general_ci encoded innodb table named users with a field named birthdate of type date, this query fails:

SELECT period_diff(DATE_FORMAT(CURDATE(), '%Y%m'),DATE_FORMAT(birthdate , '%Y%m')) as result from users 

with error:

(1210): Incorrect arguments to period_diff

but this identical query, except for the limit clause, works properly:

SELECT period_diff(DATE_FORMAT(CURDATE(), '%Y%m'),DATE_FORMAT(birthdate , '%Y%m')) as result from users limit 0,10


Expected result:
----------------
Both queries are syntactically correct and should run (they DO work properly if issued to the sql server with mysql workbench).

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 [2020-04-19 21:57 UTC] requinix@php.net
-Status: Open +Status: Feedback
 [2020-04-19 21:57 UTC] requinix@php.net 
Thank you for this bug report. To properly diagnose the problem, we
need a short but complete example script to be able to reproduce
this bug ourselves.

A proper reproducing script starts with <?php and ends with ?>,
is max. 10-20 lines long and does not require any external
resources such as databases, etc. If the script requires a
database to demonstrate the issue, please make sure it creates
all necessary tables, stored procedures etc.

Please avoid embedding huge scripts into the report.
 [2020-05-03 04:22 UTC] php-bugs at lists dot php dot net 
No feedback was provided. The bug is being suspended because
we assume that you are no longer experiencing the problem.
If this is not the case and you are able to provide the
information that was requested earlier, please do so and
change the status of the bug back to "Re-Opened". Thank you.
 
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