mongoc_collection_create_index()
Synopsis
bool
mongoc_collection_create_index (mongoc_collection_t      *collection,
                                const bson_t             *keys,
                                const mongoc_index_opt_t *opt,
                                bson_error_t             *error);Parameters
| collection | |
| keys | A bson_t. | 
| opt | A mongoc_index_opt_t. | 
| error | An optional location for a bson_error_t or NULL. | 
Description
This function will request the creation of a new index.
This function will use the createIndexes command if available on the MongoDB server. If not, it will fallback to inserting into system.indexes for compatibility with MongoDB <= 2.4.
See mongoc_index_opt_t for options on creating indexes.
Errors
Errors are propagated via the error parameter.
Returns
true on success, false on failure and error is set.