{

PGFunction fn_addr; /* pointer to function or handler to be called */

Oid fn_oid; /* OID of function (NOT of handler, if any) */

short fn_nargs; /*0..FUNC_MAX_ARGS, or -1 if variable arg count */

short fn_nargs; /*number of input args (0..FUNC_MAX_ARGS) */

bool fn_strict; /* function is "strict" (NULL in => NULL out) */

bool fn_retset; /* function returns a set (over multiple calls) */

unsigned char fn_stats; /* collect stats if track_functions > this */

{

PGFunctionfn_addr;/* pointer to function or handler to be called */

Oidfn_oid;/* OID of function (NOT of handler, if any) */

shortfn_nargs;/* 0..FUNC_MAX_ARGS, or -1 if variable arg

shortfn_nargs;/* number of input args (0..FUNC_MAX_ARGS) */

boolfn_strict;/* function is "strict" (NULL in => NULL out) */

boolfn_retset;/* function returns a set */

unsignedcharfn_stats;/* collect stats if track_functions > this */