Пример #1
0
Datum
lo_tell(PG_FUNCTION_ARGS)
{
	int32		fd = PG_GETARG_INT32(0);
	int64		offset;

#ifdef PGXC
	ereport(ERROR,
			(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
			 errmsg("Postgres-XC does not support large object yet"),
			 errdetail("The feature is not currently supported")));
#endif

	if (fd < 0 || fd >= cookies_size || cookies[fd] == NULL)
		ereport(ERROR,
				(errcode(ERRCODE_UNDEFINED_OBJECT),
				 errmsg("invalid large-object descriptor: %d", fd)));

	offset = inv_tell(cookies[fd]);

	/* guard against result overflow */
	if (offset != (int32) offset)
		ereport(ERROR,
				(errcode(ERRCODE_NUMERIC_VALUE_OUT_OF_RANGE),
		 errmsg("lo_tell result out of range for large-object descriptor %d",
				fd)));

	PG_RETURN_INT32((int32) offset);
}
Пример #2
0
Datum
lo_tell(PG_FUNCTION_ARGS)
{
	int32		fd = PG_GETARG_INT32(0);

	if (fd < 0 || fd >= cookies_size || cookies[fd] == NULL)
		ereport(ERROR,
				(errcode(ERRCODE_UNDEFINED_OBJECT),
				 errmsg("invalid large-object descriptor: %d", fd)));

	PG_RETURN_INT32(inv_tell(cookies[fd]));
}
Пример #3
0
Datum
lo_tell(PG_FUNCTION_ARGS)
{
	int32		fd = PG_GETARG_INT32(0);
	int64		offset;

	if (fd < 0 || fd >= cookies_size || cookies[fd] == NULL)
		ereport(ERROR,
				(errcode(ERRCODE_UNDEFINED_OBJECT),
				 errmsg("invalid large-object descriptor: %d", fd)));

	offset = inv_tell(cookies[fd]);

	/* guard against result overflow */
	if (offset != (int32) offset)
		ereport(ERROR,
				(errcode(ERRCODE_NUMERIC_VALUE_OUT_OF_RANGE),
		 errmsg("lo_tell result out of range for large-object descriptor %d",
				fd)));

	PG_RETURN_INT32((int32) offset);
}