Constant lmdb::NO_SUB_DIR

pub const NO_SUB_DIR: EnvironmentFlags = EnvironmentFlags{bits: MDB_NOSUBDIR,}

By default, LMDB creates its environment in a directory whose pathname is given in path, and creates its data and lock files under that directory. With this option, path is used as-is for the database main data file. The database lock file is the path with -lock appended.