1 files changed, 18 insertions, 0 deletions
diff --git a/src/mongo/db/query/canonical_query.h b/src/mongo/db/query/canonical_query.h
index e939c248a9d..fe0599a1b6a 100644
--- a/src/mongo/db/query/canonical_query.h
+++ b/src/mongo/db/query/canonical_query.h
@@ -233,6 +233,14 @@ public:
         return _sbeCompatible;
     }
 
+    void setUseCqfIfEligible(bool useCqfIfEligible) {
+        _useCqfIfEligible = useCqfIfEligible;
+    }
+
+    bool useCqfIfEligible() const {
+        return _useCqfIfEligible;
+    }
+
     bool isParameterized() const {
         return !_inputParamIdToExpressionMap.empty();
     }
@@ -318,6 +326,16 @@ private:
     // True if this query can be executed by the SBE.
     bool _sbeCompatible = false;
 
+    // If true, indicates that we should use CQF if this query is eligible (see the
+    // isEligibleForBonsai() function for eligiblitly requirements).
+    // If false, indicates that we shouldn't use CQF even if this query is eligible. This is used to
+    // prevent hybrid classic and CQF plans in the following cases:
+    // 1. A pipeline that is not eligible for CQF but has an eligible prefix pushed down to find.
+    // 2. A subpipeline pushed down to find as part of a $lookup or $graphLookup.
+    // The default value of false ensures that only codepaths (find command) which opt-in are able
+    // to use CQF.
+    bool _useCqfIfEligible = false;
+
     // True if this query must produce a RecordId output in addition to the BSON objects that
     // constitute the result set of the query. Any generated query solution must not discard record
     // ids, even if the optimizer detects that they are not going to be consumed downstream.