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From: Andreas Joseph Krogh <andreas@visena.com>
To: pgsql-sql@lists.postgresql.org
Subject: Sv: Like Command returning wrong result set
Date: Thu, 5 Aug 2021 16:04:24 +0200 (CEST)
Message-ID: <VisenaEmail.188.af6da13ea9c4fbc4.17b16a0cab8@tc7-visena> (raw)
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På torsdag 05. august 2021 kl. 16:00:38, skrev Tchouante, Merlin <
mtchouan@umaryland.edu <mailto:mtchouan@umaryland.edu>>: 

Hello group,



I’m writing a script and a bit confused on the results with the like command.



gm.title like 'CP_%'



The above command gives me records with titles like CP_40, CP_2, CP_23, etc.



gm.title like '%_CT'



The above command give me records with tiles like Quiz: RadiInterpretation w/ 
CBCT.



I was expecting it to return titles that contained *_CT, i.e. FX_CT or DR_CT. 
It’s as if it’s ignoring the underscore the way it would do if you were using 
‘%CT’. Does it ignore the underscore when it’s right after the ‘%’?



 * Percent sign ( %) matches any sequence of zero or more characters. 
 * Underscore sign ( _) matches any single character. 



-- 
Andreas Joseph Krogh 

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