1 files changed, 14 insertions, 0 deletions
diff --git a/jstests/aggregation/sources/unionWith/unionWith_explain.js b/jstests/aggregation/sources/unionWith/unionWith_explain.js
index c6fce817c4d..bc52bb81de0 100644
--- a/jstests/aggregation/sources/unionWith/unionWith_explain.js
+++ b/jstests/aggregation/sources/unionWith/unionWith_explain.js
@@ -12,6 +12,13 @@ load("jstests/aggregation/extras/utils.js");  // arrayEq, documentEq
 load("jstests/libs/fixture_helpers.js");      // For FixtureHelpers.
 load("jstests/libs/analyze_plan.js");         // For getAggPlanStage.
 
+const sbeGroupPushdownEnabled = function() {
+    const res =
+        assert.commandWorked(db.adminCommand({getParameter: 1, featureFlagSBEGroupPushdown: 1}));
+    return res.hasOwnProperty("featureFlagSBEGroupPushdown") &&
+        res.featureFlagSBEGroupPushdown.value;
+}();
+
 const testDB = db.getSiblingDB(jsTestName());
 const collA = testDB.A;
 collA.drop();
@@ -100,6 +107,13 @@ function assertExplainEq(unionExplain, regularExplain) {
 }
 
 function testPipeline(pipeline) {
+    // When the SBE $group pushdown feature is enabled, a $group alone is pushed down but it is not
+    // when it's in $unionWith sub-pipeline. So, we don't need test such scenarios for now.
+    // Eventually such scenarios should be enabled.
+    if (sbeGroupPushdownEnabled && pipeline.some(stage => stage.hasOwnProperty("$group"))) {
+        return;
+    }
+
     let unionResult = collA.aggregate([{$unionWith: {coll: collB.getName(), pipeline: pipeline}}],
                                       {explain: true});
     let queryResult = collB.aggregate(pipeline, {explain: true});