improved sql server sql parser support xml path.

src/main/java/com/alibaba/druid/sql/dialect/sqlserver/ast/SQLServerSelect.java

@@ -27,6 +27,7 @@ public class SQLServerSelect extends SQLSelect implements SQLServerObject {
 
     private boolean      forBrowse;
     private List<String> forXmlOptions = new ArrayList<String>(4);
+    private SQLExpr      xmlPath;
 
     private SQLExpr      rowCount;
     private SQLExpr      offset;
@@ -69,6 +70,17 @@ public class SQLServerSelect extends SQLSelect implements SQLServerObject {
         }
         this.offset = offset;
     }
+    
+    public SQLExpr getXmlPath() {
+        return xmlPath;
+    }
+
+    public void setXmlPath(SQLExpr xmlPath) {
+        if (xmlPath != null) {
+            xmlPath.setParent(this);
+        }
+        this.xmlPath = xmlPath;
+    }
 
     @Override
     protected void accept0(SQLASTVisitor visitor) {

src/main/java/com/alibaba/druid/sql/dialect/sqlserver/parser/SQLServerSelectParser.java

@@ -76,6 +76,9 @@ public class SQLServerSelectParser extends SQLSelectParser {
                         } else {
                             select.getForXmlOptions().add("ELEMENTS");
                         }
+                    } else if (identifierEquals("PATH")) {
+                        SQLExpr xmlPath = this.exprParser.expr();
+                        select.setXmlPath(xmlPath);
                     } else {
                         break;
                     }

src/main/java/com/alibaba/druid/sql/dialect/sqlserver/visitor/SQLServerOutputVisitor.java

@@ -469,6 +469,12 @@ public class SQLServerOutputVisitor extends SQLASTOutputVisitor implements SQLSe
             }
         }
         
+        if (x.getXmlPath() != null) {
+            println();
+            print0(ucase ? "FOR XML " : "for xml ");
+            x.getXmlPath().accept(this);
+        }
+        
         if (x.getOffset() != null) {
             println();
             print0(ucase ? "OFFSET " : "offset ");