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author | Ludovic Courtès <ludo@gnu.org> | 2014-12-26 23:31:04 +0100 |
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committer | Ludovic Courtès <ludo@gnu.org> | 2014-12-26 23:31:04 +0100 |
commit | 763a401ed185d39119289c670c1eb250ace13ed9 (patch) | |
tree | 20c989b7c6d571e388e1707af275a946b7757ecb /nix/libstore/schema.sql | |
parent | 94264407815da63c5f07a519cd41838e35ab464e (diff) | |
parent | bf7688fe4d8624ed9bddc8f7f3887df5f1fc3957 (diff) |
Merge branch 'master' into core-updates
Diffstat (limited to 'nix/libstore/schema.sql')
-rw-r--r-- | nix/libstore/schema.sql | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/nix/libstore/schema.sql b/nix/libstore/schema.sql new file mode 100644 index 0000000000..c1b4a689af --- /dev/null +++ b/nix/libstore/schema.sql @@ -0,0 +1,44 @@ +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, + narSize integer +); + +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); + +-- Paths can refer to themselves, causing a tuple (N, N) in the Refs +-- table. This causes a deletion of the corresponding row in +-- ValidPaths to cause a foreign key constraint violation (due to `on +-- delete restrict' on the `reference' column). Therefore, explicitly +-- get rid of self-references. +create trigger if not exists DeleteSelfRefs before delete on ValidPaths + begin + delete from Refs where referrer = old.id and reference = old.id; + end; + +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 +); |