Provided by: libmongoc-doc_1.23.1-1build1_all
NAME
mongoc_database_command - mongoc_database_command()
SYNOPSIS
mongoc_cursor_t * mongoc_database_command (mongoc_database_t *database, mongoc_query_flags_t flags, uint32_t skip, uint32_t limit, uint32_t batch_size, const bson_t *command, const bson_t *fields, const mongoc_read_prefs_t *read_prefs) BSON_GNUC_WARN_UNUSED_RESULT; This function is superseded by mongoc_database_command_with_opts(), mongoc_database_read_command_with_opts(), mongoc_database_write_command_with_opts(), and mongoc_database_read_write_command_with_opts().
DESCRIPTION
This function creates a cursor which will execute the command when mongoc_cursor_next() is called on it. The database's read preference, read concern, and write concern are not applied to the command, and mongoc_cursor_next() will not check the server response for a write concern error or write concern timeout. This function is not considered a retryable read operation.
PARAMETERS
• database: A mongoc_database_t. • flags: A mongoc_query_flags_t. • skip: The number of documents to skip on the server. • limit: The maximum number of documents to return from the cursor. • batch_size: Attempt to batch results from the server in groups of batch_size documents. • command: A bson_t containing the command. • fields: An optional bson_t containing the fields to return. NULL for all fields. • read_prefs: An optional mongoc_read_prefs_t. Otherwise, the command uses mode MONGOC_READ_PRIMARY.
RETURNS
This function returns a newly allocated mongoc_cursor_t that should be freed with mongoc_cursor_destroy() when no longer in use. The returned mongoc_cursor_t is never NULL, even on error. The user must call mongoc_cursor_next() on the returned mongoc_cursor_t to execute the initial command. Cursor errors can be checked with mongoc_cursor_error_document(). It always fills out the bson_error_t if an error occurred, and optionally includes a server reply document if the error occurred server-side. WARNING: Failure to handle the result of this function is a programming error.
AUTHOR
MongoDB, Inc
COPYRIGHT
2017-present, MongoDB, Inc