Merge pull request #897 from LQZYC/master

修复odps下 sql语句 AS 后面接数字 开头 错误

src/main/java/com/alibaba/druid/sql/dialect/odps/parser/OdpsLexer.java

@@ -216,4 +216,88 @@ public class OdpsLexer extends Lexer {
         }
     }
 
+
+    public void scanNumber() {
+        mark = pos;
+
+        if (ch == '-') {
+            bufPos++;
+            ch = charAt(++pos);
+        }
+
+        for (;;) {
+            if (ch >= '0' && ch <= '9') {
+                bufPos++;
+            } else {
+                break;
+            }
+            ch = charAt(++pos);
+        }
+
+        boolean isDouble = false;
+
+        if (ch == '.') {
+            if (charAt(pos + 1) == '.') {
+                token = Token.LITERAL_INT;
+                return;
+            }
+            bufPos++;
+            ch = charAt(++pos);
+            isDouble = true;
+
+            for (;;) {
+                if (ch >= '0' && ch <= '9') {
+                    bufPos++;
+                } else {
+                    break;
+                }
+                ch = charAt(++pos);
+            }
+        }
+
+        if (ch == 'e' || ch == 'E') {
+            bufPos++;
+            ch = charAt(++pos);
+
+            if (ch == '+' || ch == '-') {
+                bufPos++;
+                ch = charAt(++pos);
+            }
+
+            for (;;) {
+                if (ch >= '0' && ch <= '9') {
+                    bufPos++;
+                } else {
+                    break;
+                }
+                ch = charAt(++pos);
+            }
+
+            isDouble = true;
+        }
+
+        if (isDouble) {
+            token = Token.LITERAL_FLOAT;
+        } else {
+            if (isFirstIdentifierChar(ch) && !(ch == 'b' && bufPos == 1 && charAt(pos - 1) == '0')) {
+                bufPos++;
+                for (;;) {
+                    ch = charAt(++pos);
+
+                    if (!isIdentifierChar(ch)) {
+                        break;
+                    }
+
+                    bufPos++;
+                    continue;
+                }
+
+                stringVal = addSymbol();
+                token = Token.IDENTIFIER;
+            } else {
+                token = Token.LITERAL_INT;
+            }
+        }
+    }
+
 }

src/test/java/com/alibaba/druid/bvt/sql/mysql/parser/MySqlParserResourceTest.java

@@ -47,6 +47,7 @@ public class MySqlParserResourceTest extends TestCase {
         exec_test("bvt/parser/mysql-11.txt");
         exec_test("bvt/parser/mysql-12.txt");
         exec_test("bvt/parser/mysql-13.txt");
+        exec_test("bvt/parser/mysql-15.txt");
     }
 
     public void exec_test(String resource) throws Exception {

src/test/resources/bvt/parser/mysql-15.txt

@@ -0,0 +1,3 @@
+SELECT a.id AS 888appId, a.name AS 999appName
+---------------------------
+SELECT a.id AS 888appId, a.name AS 999appName