pub fn open_file(
path: impl AsRef<Path>,
) -> Result<Reader<WalSource<FileSource, FileSource>>>Expand description
Open a database file by path, log included if there is one.
This is the call that does the right thing without the caller having to
know what wal mode is: if a -wal file sits next to the database and
holds committed frames, its pages are read on top of the main file, and
if it does not, nothing changes.