String substitution VS proper mysql escaping

[Lawrence D'Oliveiro]

In message
<b3d92d13-b484-4188-8665-2b5c7da15dea at q22g2000yqm.googlegroups.com>, Νίκος 
wrote:

> I would expect that:
> 
> ("nikos") is a single element tuple.

Then how would you do a simple parenthesized expression?