improved sql parser.

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

@@ -90,7 +90,7 @@ public class CharTypes {
         if (c <= identifierFlags.length) {
             return identifierFlags[c];
         }
-        return c != '　' && c != '，';
+        return c != '　' && c != '，' && c != '）';
     }
 
     public static String valueOf(char ch) {

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

@@ -1403,7 +1403,9 @@ public class SQLExprParser extends SQLParser {
 
         exprList(aggregateExpr.getArguments(), aggregateExpr);
 
-        parseAggregateExprRest(aggregateExpr);
+        if (lexer.token != Token.RPAREN) {
+            parseAggregateExprRest(aggregateExpr);
+        }
 
         accept(Token.RPAREN);