diff --git a/src/main/java/com/alibaba/druid/sql/visitor/SQLEvalVisitorUtils.java b/src/main/java/com/alibaba/druid/sql/visitor/SQLEvalVisitorUtils.java
index 3ae7ff0da6..6481ea4b01 100644
--- a/src/main/java/com/alibaba/druid/sql/visitor/SQLEvalVisitorUtils.java
+++ b/src/main/java/com/alibaba/druid/sql/visitor/SQLEvalVisitorUtils.java
@@ -1117,9 +1117,7 @@ public class SQLEvalVisitorUtils {
                 return true;
             }
 
-            if ("0".equals(val) || "false".equalsIgnoreCase((String) val)) {
-                return false;
-            }
+            return false;
         }
 
         throw new IllegalArgumentException(val.getClass() + " not supported.");