diff --git a/db/post_migrate/20230117113719_add_tmp_index_to_ci_sources_pipelines_on_partition_id.rb b/db/post_migrate/20230117113719_add_tmp_index_to_ci_sources_pipelines_on_partition_id.rb
new file mode 100644
index 0000000000000000000000000000000000000000..28c722893bc4c018f6f32f02a260177004443e00
--- /dev/null
+++ b/db/post_migrate/20230117113719_add_tmp_index_to_ci_sources_pipelines_on_partition_id.rb
@@ -0,0 +1,29 @@
+# frozen_string_literal: true
+
+class AddTmpIndexToCiSourcesPipelinesOnPartitionId < Gitlab::Database::Migration[2.1]
+  disable_ddl_transaction!
+
+  INDEX_NAME = :tmp_index_ci_sources_pipelines_on_partition_id_and_id
+  SOURCE_INDEX_NAME = :tmp_index_ci_sources_pipelines_on_source_partition_id_and_id
+  TABLE_NAME = :ci_sources_pipelines
+
+  def up
+    return unless Gitlab.com?
+
+    add_concurrent_index TABLE_NAME,
+      [:partition_id, :id],
+      name: INDEX_NAME, where: 'partition_id = 101'
+
+    add_concurrent_index TABLE_NAME,
+      [:source_partition_id, :id],
+      name: SOURCE_INDEX_NAME,
+      where: 'source_partition_id = 101'
+  end
+
+  def down
+    return unless Gitlab.com?
+
+    remove_concurrent_index_by_name TABLE_NAME, INDEX_NAME
+    remove_concurrent_index_by_name TABLE_NAME, SOURCE_INDEX_NAME
+  end
+end
diff --git a/db/schema_migrations/20230117113719 b/db/schema_migrations/20230117113719
new file mode 100644
index 0000000000000000000000000000000000000000..abdccc39a8050f1e40a02d55d4d232ca94ea8522
--- /dev/null
+++ b/db/schema_migrations/20230117113719
@@ -0,0 +1 @@
+d0aac8e7bdb605eec1f3d60aa06db81e36d0069b79a15a89f4a076889dd68edc
\ No newline at end of file