diff --git a/sqitch/deploy/blocked_builds_blocked_builds_blocked_derivation_output_details_set_id_2.sql b/sqitch/deploy/blocked_builds_blocked_builds_blocked_derivation_output_details_set_id_2.sql
new file mode 100644
index 0000000..9ad850f
--- /dev/null
+++ b/sqitch/deploy/blocked_builds_blocked_builds_blocked_derivation_output_details_set_id_2.sql
@@ -0,0 +1,8 @@
+-- Deploy guix-data-service:blocked_builds_blocked_builds_blocked_derivation_output_details_set_id_2 to pg
+
+BEGIN;
+
+CREATE INDEX blocked_builds_blocked_derivation_output_details_set_id_2
+  ON blocked_builds (blocked_derivation_output_details_set_id);
+
+COMMIT;
diff --git a/sqitch/revert/blocked_builds_blocked_builds_blocked_derivation_output_details_set_id_2.sql b/sqitch/revert/blocked_builds_blocked_builds_blocked_derivation_output_details_set_id_2.sql
new file mode 100644
index 0000000..9be1efd
--- /dev/null
+++ b/sqitch/revert/blocked_builds_blocked_builds_blocked_derivation_output_details_set_id_2.sql
@@ -0,0 +1,7 @@
+-- Revert guix-data-service:blocked_builds_blocked_builds_blocked_derivation_output_details_set_id_2 from pg
+
+BEGIN;
+
+-- XXX Add DDLs here.
+
+COMMIT;
diff --git a/sqitch/sqitch.plan b/sqitch/sqitch.plan
index d331920..64b2189 100644
--- a/sqitch/sqitch.plan
+++ b/sqitch/sqitch.plan
@@ -92,3 +92,4 @@ package_derivations_id_package_id_idx 2022-09-14T09:24:30Z Chris <chris@felis> #
 blocked_builds 2022-11-07T11:27:28Z Chris <chris@felis> # Add blocked_builds
 package_derivations_extended_statistics 2022-11-12T10:40:18Z Chris <chris@felis> # Add extended statistics on package_derivations
 derivation_outputs_id_and_derivation_id_idx 2022-11-12T10:41:42Z Chris <chris@felis> # Add index on derivation_outputs id and derivation_id
+blocked_builds_blocked_builds_blocked_derivation_output_details_set_id_2 2023-03-05T10:19:53Z Chris <chris@felis> # Add index on blocked_builds_blocked_derivation_output_details_set_id
diff --git a/sqitch/verify/blocked_builds_blocked_builds_blocked_derivation_output_details_set_id_2.sql b/sqitch/verify/blocked_builds_blocked_builds_blocked_derivation_output_details_set_id_2.sql
new file mode 100644
index 0000000..c7334f0
--- /dev/null
+++ b/sqitch/verify/blocked_builds_blocked_builds_blocked_derivation_output_details_set_id_2.sql
@@ -0,0 +1,7 @@
+-- Verify guix-data-service:blocked_builds_blocked_builds_blocked_derivation_output_details_set_id_2 on pg
+
+BEGIN;
+
+-- XXX Add verifications here.
+
+ROLLBACK;