From: Warren Young
Date: February 20 2006 7:08pm
Subject: Re: Is it possible to query variable 'datadir' via mysql
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cwic wrote:
> 
> I'm looking for way to query the value of "datadir" mysql's variable
> at runtime with mysql++, 

There's certainly no API call in MySQL++ to do that.  The best place to 
ask is on the main MySQL mailing list, in context of the MySQL C API. 
If the C API can do it, then you can post the method here and ask for it 
to be abstracted into MySQL++.  MySQL++ doesn't try to do things that 
are fundamentally impossible with the C API.