bug fixed for sql parser. issue #1898

src/main/java/com/alibaba/druid/sql/parser/SQLExprParser.java

@@ -652,6 +652,12 @@ public class SQLExprParser extends SQLParser {
                 lexer.nextToken();
                 sqlExpr = new SQLBooleanExpr(false);
                 break;
+            case BITS: {
+                String strVal = lexer.stringVal();
+                lexer.nextToken();
+                sqlExpr = new SQLBinaryExpr(strVal);
+                break;
+            }
             default:
                 throw new ParserException("ERROR" + lexer.info());
         }

src/main/java/com/alibaba/druid/sql/parser/Token.java

@@ -130,6 +130,8 @@ public enum Token {
     SHOW("SHOW"),
     REPLACE("REPLACE"),
 
+    BITS,
+
     // MySql procedure add by zz
     WHILE("WHILE"),
     DO("DO"),
@@ -256,7 +258,7 @@ public enum Token {
     LITERAL_HEX,
     LITERAL_CHARS,
     LITERAL_NCHARS,
-    
+
     LITERAL_ALIAS,
     LINE_COMMENT,
     MULTI_LINE_COMMENT,