Re: problem with concat and concat_ws function
Posted by: Rick James
Date: February 13, 2011 06:35PM

Alas, these functions, and a few others, get confused. And they tend to deliver BINARY instead of CHAR results. CAST may help.

http://forums.mysql.com/read.php?103,295732,297306
http://forums.mysql.com/read.php?20,227640 ([help] - It´s a bug with CONCAT function ?)
http://forums.mysql.com/read.php?24,375622 (Strange Index Choice Behavior)
http://forums.mysql.com/read.php?10,240209 (calculating days to excluding weekends)
http://forums.mysql.com/read.php?10,249166 (Why does this query take ten seconds?)
http://forums.mysql.com/read.php?103,361628,361628

If you need further help, please narrow down the problem to CONCAT of just two columns, and SHOW CREATE TABLE so we can see the datatypes.

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Re: problem with concat and concat_ws function
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February 13, 2011 06:35PM


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