May be used "onecolumn" function instead of "eval". The "eval" function
returns empty value of single record and so the result is "{}".
2012/4/12 Zbigniew <zbigniew2...@gmail.com>
> At the attempt to get a non-existing value, for example:
>
> set x [dbcomm eval {SELECT max(somecolumn) FROM sometable}]
>
> The returned value of $x will be {} - and no, not "empty", but exactly
> these two characters.
>
> Easy to reproduce.
> --
> Zbigniew
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>
--
Best regards, Alexey Pechnikov.
http://pechnikov.tel/
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