@   uid INTEGER REFERENCES user,
@   user TEXT,
@   comment TEXT
@ );
@ CREATE INDEX event_i1 ON event(mtime);
@ CREATE INDEX event_i2 ON event(objid);
@
@ -- A record of phantoms.  A phantom is a record for which we know the
@ -- UUID but we do not (yet) know the file content.
@ --
@ CREATE TABLE phantom(
@   rid INTEGER PRIMARY KEY         -- Record ID of the phantom
@ );
@
@ -- Unclustered records.  An unclustered record is a record (including
@ -- a cluster records themselves) that is not mentioned by some other
@ -- cluster.
@ --
@ -- Phantoms are usually included in the unclustered table.  A new cluster
@ -- will never be created that contains a phantom.  But another repository
@ -- might send us a cluster that contains entries that are phantoms to
@ -- us.
@ --
@ CREATE TABLE unclustered(
@   rid INTEGER PRIMARY KEY         -- Record ID of the unclustered file
@ );
@
@ -- Records which have never been pushed to another server.  This is
@ -- used to reduce push operations to a single HTTP request in the