mongoc_collection_delete_many (mongoc_collection_t *collection,
                               const bson_t *selector,
                               const bson_t *opts,
                               bson_t *reply,
                               bson_error_t *error);


  • collection: A mongoc_collection_t.
  • selector: A bson_t containing the query to match documents.
  • reply: Optional. An uninitialized bson_t populated with the delete result, or NULL.
  • error: An optional location for a bson_error_t or NULL.

opts may be NULL or a BSON document with additional command options:


This function removes all documents in the given collection that match selector.

To delete at most one matching document, use mongoc_collection_delete_one().

If you pass a non-NULL reply, it is filled out with the field “deletedCount”. If there is a server error then reply contains either a “writeErrors” array with one subdocument or a “writeConcernErrors” array. The reply must be freed with bson_destroy().


Errors are propagated via the error parameter.


Returns true if successful. Returns false and sets error if there are invalid arguments or a server or network error.