Re: BUG #5533: PQexecParams in Binary Mode returns incorrect value for float4 - Mailing list pgsql-bugs

"" <myk321@gmail.com> writes:
> Some needless speculation:
> 0.75 = 3F400000 (as IEEE 32-bit float)
> 0.75 = 3FE8000000000000 (as IEEE 64-bit float)
> 1.812500 = 3FE80000 (as returned by PQexecParams)
> i.e. the return value is the first 32-bits of the 64-bit representation of
> the correct value.

Well, yeah.  You declared the column as float8, not float4:

>     res = PQexec(conn, "CREATE TABLE testtbl( Intgr int4, Flt float8, PRIMARY
KEY ( Intgr ));");

            regards, tom lane