diff --git a/src/sql/hydra.sql b/src/sql/hydra.sql
index 46e3827e..7f12ccfe 100644
--- a/src/sql/hydra.sql
+++ b/src/sql/hydra.sql
@@ -613,6 +613,8 @@ create index IndexJobsetEvalMembersOnEval on JobsetEvalMembers(eval);
 create index IndexJobsetInputAltsOnInput on JobsetInputAlts(project, jobset, input);
 create index IndexJobsetInputAltsOnJobset on JobsetInputAlts(project, jobset);
 create index IndexProjectsOnEnabled on Projects(enabled);
+create index IndexBuildOutputsPath on BuildOutputs using hash(path);
+
 
 --  For hydra-update-gc-roots.
 create index IndexBuildsOnKeep on Builds(keep) where keep = 1;
diff --git a/src/sql/upgrade-69.sql b/src/sql/upgrade-69.sql
new file mode 100644
index 00000000..b7acb10d
--- /dev/null
+++ b/src/sql/upgrade-69.sql
@@ -0,0 +1 @@
+create index IndexBuildOutputsPath on BuildOutputs using hash(path);