diff --git a/migrations/20230830194148_metric_index.sql b/migrations/20230830194148_metric_index.sql
new file mode 100644
index 0000000..35b45f3
--- /dev/null
+++ b/migrations/20230830194148_metric_index.sql
@@ -0,0 +1,2 @@
+CREATE INDEX idx_run_measurements_metric
+ON run_measurements (metric);