# table.column error

**URL:** <https://forum.kx.com/t/table-column-error/8649>\
**Category:** Community Support\
**Tags:** kdb-and-q\
**Created:** [February 28, 2014, 2:52pm UTC](https://forum.kx.com/t/table-column-error/8649 "2014-02-28T14:52:00Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![James11](https://avatars.discourse-cdn.com/v4/letter/j/e5b9ba/32.png) [@James11](https://forum.kx.com/u/James11)\
**Post date:** [February 28, 2014, 2:52pm UTC](https://forum.kx.com/t/table-column-error/8649/1 "2014-02-28T14:52:00Z")

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Subject: table.column errorMessage-Id: \<91E068E9-02C8-4E58-994A-DAAD1ACCCD29@gmail.com\>Date: Fri, 28 Feb 2014 22:52:48 +0800To: Kdb+ Personal Developers Mime-Version: 1.0 (Mac OS X Mail 7.1 (1827))X-Mailer: Apple Mail (2.1827)Function Definition:q)f1:{[n;x;l]$[x\>last n mavg l;`yes;`no]}q)f2::{[n;x];y:select [n] col from t; f1[n;x;y.col]}When i call function f2, It will have a error q)f2[10;2]'y.colI don?t know where is the error. Please help me.Thanks.Roy

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**Author:** ![Attila](https://avatars.discourse-cdn.com/v4/letter/a/b9bd4f/32.png) [@Attila](https://forum.kx.com/u/Attila)\
**Post date:** [February 28, 2014, 4:18pm UTC](https://forum.kx.com/t/table-column-error/8649/2 "2014-02-28T16:18:00Z")

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http://code.kx.com/wiki/FAQ at the bottom {x.time}

in short locals don’t really have names

so . syntax can’t be used

Cheers,

? Attila

? Attila

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**Author:** ![kaffirlily](https://avatars.discourse-cdn.com/v4/letter/k/71e660/32.png) [@kaffirlily](https://forum.kx.com/u/kaffirlily)\
**Post date:** [February 28, 2014, 4:45pm UTC](https://forum.kx.com/t/table-column-error/8649/3 "2014-02-28T16:45:00Z")

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charset=gb2312  
X-Mailer: iPhone Mail (11B651)  
In-Reply-To: \<91E068E9-02C8-4E58-994A-DAAD1ACCCD29@gmail.com\>  
Message-Id: \<0B76808A-26E1-420B-9ACC-7C4A51A43902@gmail.com\>  
Date: Sat, 1 Mar 2014 00:45:45 +0800  
To: “[personal-kdbplus@googlegroups.com](mailto:personal-kdbplus@googlegroups.com)”   
  
Mime-Version: 1.0 (1.0)  
  
Have a try=A3=BA  
f2::{[n;x];y:select [n] col from t; f1[n;x;y['col]]}  
  
Sent from my iPhone