From 7967e93c160e88dab7c2cde2f9c3cfe4352e28c6 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Cl=C3=A9ment=20Renault?= <clement@meilisearch.com>
Date: Wed, 5 Jun 2024 16:58:32 -0400
Subject: [PATCH] Skip evaluating when a universe is empty, nothing can be
 found

---
 milli/src/search/facet/filter.rs | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/milli/src/search/facet/filter.rs b/milli/src/search/facet/filter.rs
index f5fd0f2fd..d75ed5f22 100644
--- a/milli/src/search/facet/filter.rs
+++ b/milli/src/search/facet/filter.rs
@@ -343,6 +343,10 @@ impl<'a> Filter<'a> {
         filterable_fields: &HashSet<String>,
         universe: Option<&RoaringBitmap>,
     ) -> Result<RoaringBitmap> {
+        if universe.map_or(false, |u| u.is_empty()) {
+            return Ok(RoaringBitmap::new());
+        }
+
         match &self.condition {
             FilterCondition::Not(f) => {
                 // TODO improve the documents_ids to also support intersections at deserialize time.