From ca9f2a5d3000a8dadeeba484a84e37e9b1fff7be Mon Sep 17 00:00:00 2001
From: zhixingheyi-tian <xiangxiang.shen@intel.com>
Date: Wed, 9 Mar 2022 16:03:07 +0800
Subject: [PATCH] Quick fix for ConverterUtils$.getAttrFromExpr (#754)

---
 .../main/scala/com/intel/oap/expression/ConverterUtils.scala    | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/native-sql-engine/core/src/main/scala/com/intel/oap/expression/ConverterUtils.scala b/native-sql-engine/core/src/main/scala/com/intel/oap/expression/ConverterUtils.scala
index c380e8659..063716f4e 100644
--- a/native-sql-engine/core/src/main/scala/com/intel/oap/expression/ConverterUtils.scala
+++ b/native-sql-engine/core/src/main/scala/com/intel/oap/expression/ConverterUtils.scala
@@ -319,6 +319,8 @@ object ConverterUtils extends Logging {
     fieldExpr match {
       case a: Cast =>
         getAttrFromExpr(a.child)
+      case l: Literal =>
+        new AttributeReference("name", l.dataType, l.nullable)()
       case a: AggregateExpression =>
         getAttrFromExpr(a.aggregateFunction.children(0))
       case a: AttributeReference =>