MYSQL_FIELD *mysql_fetch_fields(MYSQL_RES *result)
20.4.15.1  Description
Returns an array of all MYSQL_FIELD structures for a result set.
Each structure provides the field definition for one column of the result
set.
20.4.15.2  Return values
An array of MYSQL_FIELD structures for all columns of a result set.
20.4.15.3  Errors
None.
20.4.15.4  Example
unsigned int num_fields;
unsigned int i;
MYSQL_FIELD *fields;
num_fields = mysql_num_fields(result);
fields = mysql_fetch_fields(result);
for(i = 0; i < num_fields; i++)
{
   printf("Field %u is %s\n", i, fields[i].name);
}