From 76aa00a4c67632ee4628dc36a832d7d5f5dd1584 Mon Sep 17 00:00:00 2001
From: Buqian Zheng <zhengbuqian@gmail.com>
Date: Fri, 12 Dec 2025 18:25:20 +0800
Subject: [PATCH] fix: fix CanUseIndexForJson (#46286)

issue: https://github.com/milvus-io/milvus/issues/46269

Signed-off-by: Buqian Zheng <zhengbuqian@gmail.com>
---
 internal/core/src/exec/expression/UnaryExpr.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/internal/core/src/exec/expression/UnaryExpr.cpp b/internal/core/src/exec/expression/UnaryExpr.cpp
index 6206f6938a..005c469a70 100644
--- a/internal/core/src/exec/expression/UnaryExpr.cpp
+++ b/internal/core/src/exec/expression/UnaryExpr.cpp
@@ -1742,6 +1742,10 @@ PhyUnaryRangeFilterExpr::CanUseIndex() {
 
 bool
 PhyUnaryRangeFilterExpr::CanUseIndexForJson(DataType val_type) {
+    if (!SegmentExpr::CanUseIndex()) {
+        use_index_ = false;
+        return false;
+    }
     bool has_index = pinned_index_.size() > 0;
     switch (val_type) {
         case DataType::STRING: