> On Apr 25, 2017, at 1:37 PM, Konstantin Knizhnik <k.knizh...@postgrespro.ru> > wrote: >> >> SELECT ‘hello’::CHAR(10) || ‘World’, 5 + 6; >> >> You can substitute ‘hello’, ‘World’, 5, and 6. But not 10. > > I am substituting only string literals. So the query above will be > transformed to > > SELECT $1::CHAR(10) || $2, 5 + 6; > > What's wrong with it?
Oh, well that leaves a lot of opportunities on the table, doesn’t it? Cheers Serge
