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create table if not exists ValidPaths (
id integer primary key autoincrement not null,
path text unique not null,
hash text not null,
registrationTime integer not null,
deriver text
);
create table if not exists Refs (
referrer integer not null,
reference integer not null,
primary key (referrer, reference),
foreign key (referrer) references ValidPaths(id) on delete cascade,
foreign key (reference) references ValidPaths(id) on delete restrict
);
create index if not exists IndexReferrer on Refs(referrer);
create index if not exists IndexReference on Refs(reference);
create table if not exists DerivationOutputs (
drv integer not null,
id text not null, -- symbolic output id, usually "out"
path text not null,
primary key (drv, id),
foreign key (drv) references ValidPaths(id) on delete cascade
);
create index if not exists IndexDerivationOutputs on DerivationOutputs(path);
create table if not exists FailedPaths (
path text primary key not null,
time integer not null
);
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