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MONGOC_COLLECTION_DELETE_MANY(3) libmongoc MONGOC_COLLECTION_DELETE_MANY(3) SYNOPSIS bool mongoc_collection_delete_many (mongoc_collection_t *collection, const bson_t *selector, const bson_t *opts, bson_t *reply, bson_error_t *error); PARAMETERS • collection: A mongoc_collection_t. • selector: A bson_t containing the query to match documents. • reply: A maybe-NULL pointer to overwritable storage for a bson_t to contain the results. • error: An optional location for a bson_error_t or NULL. opts may be NULL or a BSON document with additional command options: • writeConcern: Construct a mongoc_write_concern_t and use mongoc_write_concern_append() to add the write concern to opts. See the example code for mongoc_client_write_command_with_opts(). • sessionId: First, construct a mongoc_client_session_t with mongoc_client_start_session(). You can begin a transaction with mongoc_client_session_start_transaction(), optionally with a mongoc_transaction_opt_t that overrides the options inherited from collection, and use mongoc_client_session_append() to add the session to opts. See the example code for mongoc_client_session_t. • validate: Construct a bitwise-or of all desired bson_validate_flags_t. Set to false to skip client-side validation of the provided BSON documents. • comment: A bson_value_t specifying the comment to attach to this com- mand. The comment will appear in log messages, profiler output, and currentOp output. Requires MongoDB 4.4 or later. • collation: Configure textual comparisons. See Setting Collation Or- der, and the MongoDB Manual entry on Collation. Collation requires MongoDB 3.2 or later, otherwise an error is returned. • hint: A document or string that specifies the index to use to support the query predicate. • let: A BSON document consisting of any number of parameter names, each followed by definitions of constants in the MQL Aggregate Ex- pression language. DESCRIPTION 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 "deleted- Count". If there is a server error then reply contains either a "writeErrors" array with one subdocument or a "writeConcernErrors" ar- ray. The reply must be freed with bson_destroy(). ERRORS Errors are propagated via the error parameter. RETURNS Returns true if successful. Returns false and sets error if there are invalid arguments or a server or network error. AUTHOR MongoDB, Inc COPYRIGHT 2009-present, MongoDB, Inc. 1.30.2 Apr 12, 2025 MONGOC_COLLECTION_DELETE_MANY(3)
SYNOPSIS | PARAMETERS | DESCRIPTION | ERRORS | RETURNS | AUTHOR | COPYRIGHT
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