arguments are not toastable

[Nick Raj <nickrajjain@xxxxxxxxx>]

Hi,
I have defined some function and also used NDBOX structure that having variable length.

typedef struct NDBOX
{
    int32        vl_len_;        /* varlena length */
    unsigned int dim;
    double        x[1];

} NDBOX;

When i called my function, it gives NDBOX to be null
On debugging, i found out ,FunctionInvokeCall invokes fmgr_oldstyle function, for getting argument

if (fnextra->arg_toastable[i])    //this returns false, not able to get arguments

            fcinfo->arg[i] = PointerGetDatum(PG_DETOAST_DATUM(fcinfo->arg[i]));

    }

Why it is going into fmgr_oldstyle if the arguments is not toasted? "How to get arguments toastable??" and even my table pg_class.reltoastrelid entry is zero.


Thanks