diff --git a/guix-data-service/metrics.scm b/guix-data-service/metrics.scm
index 7ec6b8e..ca1d97a 100644
--- a/guix-data-service/metrics.scm
+++ b/guix-data-service/metrics.scm
@@ -96,7 +96,8 @@ SELECT relname, seq_scan, seq_tup_read,
        COALESCE(extract(epoch from last_analyze), 0),
        COALESCE(extract(epoch from last_autoanalyze), 0),
        vacuum_count, autovacuum_count, analyze_count, autoanalyze_count
- FROM pg_stat_user_tables")
+FROM pg_stat_user_tables
+WHERE relname NOT LIKE 'package_derivations_by_guix_revision_range_git_branch_%'")
 
   (map (match-lambda
          ((relname seq-scan seq-tup-read
@@ -141,7 +142,8 @@ FROM pg_stat_user_indexes
 LEFT JOIN pg_indexes
   ON pg_stat_user_indexes.indexrelname = pg_indexes.indexname
  AND pg_stat_user_indexes.schemaname = pg_indexes.schemaname
-WHERE pg_stat_user_indexes.schemaname = 'guix_data_service'")
+WHERE pg_stat_user_indexes.schemaname = 'guix_data_service'
+  AND pg_indexes.tablename NOT LIKE 'package_derivations_by_guix_revision_range_git_branch_%'")
 
   (map
    (match-lambda
@@ -162,7 +164,8 @@ WHERE pg_stat_user_indexes.schemaname = 'guix_data_service'")
     "
 SELECT tablename, attname, null_frac, n_distinct, correlation
 FROM pg_stats
-WHERE schemaname = 'guix_data_service'")
+WHERE schemaname = 'guix_data_service'
+  AND tablename NOT LIKE 'package_derivations_by_guix_revision_range_git_branch_%'")
 
   (map
    (match-lambda