diff --git a/admin-writer/src/main/resources/raw_data/db/migration/R__Metrics_Functions.sql b/admin-writer/src/main/resources/raw_data/db/migration/R__Metrics_Functions.sql
index fca9f84b..9611b081 100644
--- a/admin-writer/src/main/resources/raw_data/db/migration/R__Metrics_Functions.sql
+++ b/admin-writer/src/main/resources/raw_data/db/migration/R__Metrics_Functions.sql
@@ -1179,9 +1179,9 @@ BEGIN
                 coverage.test_id as test_id
             FROM raw_data.coverage coverage
             JOIN MatchingInstances ON MatchingInstances.instance_id = coverage.instance_id AND MatchingInstances.classname = coverage.classname
-            LEFT JOIN TestLaunchIds ON coverage.test_id = TestLaunchIds.__id
-            WHERE (coverage_created_at_start IS NULL OR coverage.created_at >= coverage_created_at_start)
-                  AND (coverage_created_at_end IS NULL OR coverage.created_at <= coverage_created_at_end)
+            WHERE coverage.test_id IN (SELECT __id FROM TestLaunchIds)
+                AND (coverage_created_at_start IS NULL OR coverage.created_at >= coverage_created_at_start)
+                AND (coverage_created_at_end IS NULL OR coverage.created_at <= coverage_created_at_end)
             GROUP BY
                 MatchingInstances.signature,
                 MatchingInstances.body_checksum,