bug fixed for oracle sql parser

src/main/java/com/alibaba/druid/sql/dialect/oracle/parser/OracleLexer.java

@@ -142,6 +142,7 @@ public class OracleLexer extends Lexer {
         map.put("COMMIT", Token.COMMIT);
         map.put("ROLLBACK", Token.ROLLBACK);
         map.put("SAVEPOINT", Token.SAVEPOINT);
+        map.put("CROSS", Token.CROSS);
 
         DEFAULT_ORACLE_KEYWORDS = new Keywords(map);
     }

src/main/java/com/alibaba/druid/sql/dialect/oracle/parser/OracleSelectParser.java

@@ -909,6 +909,11 @@ public class OracleSelectParser extends SQLSelectParser {
             accept(Token.JOIN);
             joinType = OracleSelectJoin.JoinType.INNER_JOIN;
         }
+        if (lexer.token() == Token.CROSS) {
+            lexer.nextToken();
+            accept(Token.JOIN);
+            joinType = OracleSelectJoin.JoinType.CROSS_JOIN;
+        }
 
         if (lexer.token() == Token.JOIN) {
             lexer.nextToken();

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

@@ -175,6 +175,7 @@ public enum Token {
     COMMIT("COMMIT"),
     ROLLBACK("ROLLBACK"),
     SAVEPOINT("SAVEPOINT"),
+    CROSS("CROSS"),
     
     // transact-sql
     TOP("TOP"),