mongoc_collection_create_index_with_opts

bool
mongoc_collection_create_index_with_opts (mongoc_collection_t *collection,
                                          const bson_t *keys,
                                          const mongoc_index_opt_t *index_opts,
                                          const bson_t *command_opts,
                                          bson_t *reply,
                                          bson_error_t *error);

• collection: A mongoc_collection_t <>.
• keys: A bson_t <https://www.mongoc.org/libbson/current/bson_t.html>.
• index_opts: A mongoc_index_opt_t.
• reply: A maybe-NULL pointer to overwritable storage <https://www.mongodb.com/docs/languages/c/c-driver/current/libbson/guides/lifetimes/#overwritable-storage> for a bson_t <https://www.mongoc.org/libbson/current/bson_t.html> to contain the results.
• error: An optional location for a bson_error_t <> or NULL.

command_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 <>.

This function will request the creation of a new index.

This function will use the createIndexes command. The server's reply is stored in reply.

If no write concern is provided in command_opts, the collection's write concern is used.

See mongoc_index_opt_t <> for options on creating indexes.

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.

reply is always initialized and must be destroyed with bson_destroy() <https://www.mongoc.org/libbson/current/bson_destroy.html>. If the server is running an obsolete version of MongoDB then reply may be empty, though it will still be initialized.

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