Re: [boost] SQL client library ?

Subject: Re: [boost] SQL client library ?
From: Jean-Louis Leroy (jl_at_[hidden])
Date: 2009-09-16 01:54:37

I am writing the library that implements the syntax I described. I will 
show working code soon (or right now upon request).

I am sorely tempted to overload the comma operator for "select", "from" 
and "in". I know the usual caveats (low precedence, default behavior 
exists for UDTs).

The alternatives for open lists are : use the preprocessor to crank out 
overloads like in the MPL ; build lists one at a time [i.e. 
select(t1.id)(t2.name)(t3.age).from(t1)(t2)(t3).where(t1.id.in(1)(2))]...and 
overload the comma operator on well-targeted types [e.g. 
template<typename T> operator ,(expression<T>, expression<T>)]. And 
perhaps make the comma operator available but in a namespace (gives 
choice but usually alternative syntaxes are a bad idea).

Opinions ?

J-L