From ecd235de79e2149c3c291c7eb119ae9f2380a01c Mon Sep 17 00:00:00 2001
From: gitccl <60637740+gitccl@users.noreply.github.com>
Date: Mon, 24 Oct 2022 14:54:30 +0800
Subject: [PATCH] fix segmentation fault when meeting 'select * from t where 2
 > 1' (#114)

---
 src/observer/sql/executor/execute_stage.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/observer/sql/executor/execute_stage.cpp b/src/observer/sql/executor/execute_stage.cpp
index 5484fba..a9fc784 100644
--- a/src/observer/sql/executor/execute_stage.cpp
+++ b/src/observer/sql/executor/execute_stage.cpp
@@ -290,6 +290,8 @@ IndexScanOperator *try_to_create_index_scan_operator(FilterStmt *filter_stmt)
     if (left->type() == ExprType::FIELD && right->type() == ExprType::VALUE) {
     } else if (left->type() == ExprType::VALUE && right->type() == ExprType::FIELD) {
       std::swap(left, right);
+    } else {
+      continue;
     }
     FieldExpr &left_field_expr = *(FieldExpr *)left;
     const Field &field = left_field_expr.field();
-- 
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