Re: [GENERAL] 'a' == 'a '

Is there any TODO here?

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Tom Lane wrote:
> "Dann Corbit" <DCorbit@connx.com> writes:
> > I guess that additional ambiguity arises if you add additional spaces to
> > the end.  Many database systems solve this by trimming the characters
> > from the end of the string upon storage and the returned string will not
> > have any trailing blanks.
> 
> Can you document that?  ISTM that that would effectively make char(n)
> and varchar(n) exactly equivalent, which is ... um ... a bit stupid.
> 
>             regards, tom lane
> 
> ---------------------------(end of broadcast)---------------------------
> TIP 9: In versions below 8.0, the planner will ignore your desire to
>        choose an index scan if your joining column's datatypes do not
>        match
> 

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