diff --git a/src/main/java/com/alibaba/druid/sql/parser/SQLExprParser.java b/src/main/java/com/alibaba/druid/sql/parser/SQLExprParser.java
index f3018ade77..8d447d0364 100644
--- a/src/main/java/com/alibaba/druid/sql/parser/SQLExprParser.java
+++ b/src/main/java/com/alibaba/druid/sql/parser/SQLExprParser.java
@@ -968,7 +968,7 @@ public class SQLExprParser extends SQLParser {
     }
 
     public final SQLExpr bitOrRest(SQLExpr expr) {
-        if (lexer.token() == Token.BAR) {
+        while (lexer.token() == Token.BAR) {
             lexer.nextToken();
             SQLExpr rightExp = bitAnd();
             expr = new SQLBinaryOpExpr(expr, SQLBinaryOperator.BitwiseOr, rightExp);