bson_append_maxkey()
Synopsis
bool
bson_append_maxkey (bson_t     *bson,
                    const char *key,
                    int         key_length);Parameters
| bson | A bson_t. | 
| key | An ASCII C string containing the name of the field. | 
| key_length | The length of key in bytes, or -1 to determine the length with strlen(). | 
Description
The bson_append_maxkey() function shall append an element of type BSON_TYPE_MAXKEY to a bson document. This is primarily used in queries and unlikely to be used when storing a document to MongoDB.
Returns
true if the operation was applied successfully, otherwise false and bson should be discarded.