real - integer type cast in prepared statements

[Andrei <andyk@xxxxxxxxxxxxxx>]

Hi!

Why when I prepare statement by parsing such query: 'SELECT * FROM 
"test" WHERE "ind" < $1 + 1' ("ind" is of type REAL) $1 is interpreted 
by backend as INTEGER? Parse completed successfully, but trying to bind 
parameter as '20.20' resulted in "ERROR C22P02 Minvalid input syntax for 
integer: "20.20" Fnumutils.c L98 Rpg_atoi"? I understand that it's 
possible to make query like 'SELECT * FROM "test" WHERE "ind" < $1::real 
+ 1', but at the query building time I can't know what type this column is!