sqlserver支持alter table add default with values

src/main/java/com/alibaba/druid/sql/ast/statement/SQLDefault.java

@@ -24,6 +24,7 @@ public class SQLDefault extends SQLConstraintImpl implements SQLTableElement, SQ
 
     private SQLExpr expr;
     private SQLExpr column;
+    private boolean withValues = false;
 
     public SQLDefault(){
 
@@ -71,8 +72,14 @@ public class SQLDefault extends SQLConstraintImpl implements SQLTableElement, SQ
         super.cloneTo(x);
 
         if (expr != null) {
-            expr = expr.clone();
+            x.setExpr(expr.clone());
         }
+
+        if (column != null) {
+            x.setColumn(column.clone());
+        }
+
+        x.setWithValues(x.isWithValues());
     }
 
     public SQLDefault clone() {
@@ -99,4 +106,12 @@ public class SQLDefault extends SQLConstraintImpl implements SQLTableElement, SQ
         }
         return false;
     }
+
+    public boolean isWithValues() {
+        return withValues;
+    }
+
+    public void setWithValues(boolean withValues) {
+        this.withValues = withValues;
+    }
 }

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

@@ -4814,6 +4814,12 @@ public class SQLExprParser extends SQLParser {
         accept(Token.FOR);
         sqlDefault.setColumn(this.expr());
 
+        if (lexer.token == Token.WITH) {
+            lexer.nextToken();
+            accept(Token.VALUES);
+            sqlDefault.setWithValues(true);
+        }
+
         return sqlDefault;
     }
 

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

@@ -1838,6 +1838,10 @@ public class SQLStatementParser extends SQLParser {
 
                             break;
                         }
+                    } else if (lexer.token == DEFAULT) {
+                        SQLConstraint constraint = this.exprParser.parseConstaint();
+                        SQLAlterTableAddConstraint item = new SQLAlterTableAddConstraint(constraint);
+                        stmt.addItem(item);
                     } else {
                         throw new ParserException("TODO " + lexer.info());
                     }

src/main/java/com/alibaba/druid/sql/visitor/SQLASTOutputVisitor.java

@@ -5290,6 +5290,11 @@ public class SQLASTOutputVisitor extends SQLASTVisitorAdapter implements Paramet
         this.indentCount++;
         x.getColumn().accept(this);
         this.indentCount--;
+
+        if (x.isWithValues()) {
+            print0(ucase ? " WITH VALUES" : " with values");
+        }
+
         return false;
     }
 

src/test/java/com/alibaba/druid/bvt/sql/sqlserver/SQLServerAlterTableTest_13_default.java

@@ -0,0 +1,78 @@
+/*
+ * Copyright 1999-2017 Alibaba Group Holding Ltd.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.alibaba.druid.bvt.sql.sqlserver;
+
+import com.alibaba.druid.DbType;
+import com.alibaba.druid.sql.SQLUtils;
+import com.alibaba.druid.sql.ast.SQLStatement;
+import com.alibaba.druid.sql.dialect.sqlserver.visitor.SQLServerSchemaStatVisitor;
+import com.alibaba.druid.util.JdbcConstants;
+import junit.framework.TestCase;
+import org.junit.Assert;
+import org.junit.Test;
+
+import java.util.List;
+
+public class SQLServerAlterTableTest_13_default extends TestCase {
+
+    public void test_alter_first() throws Exception {
+        String sql = "ALTER TABLE N_MerchantBase ADD  CONSTRAINT DF_N_MerchantBase_UnUsedCouponMoney  DEFAULT ((0)) FOR [UnUsedCouponMoney]";
+        List<SQLStatement> sqlStatements = SQLUtils.parseStatements(sql, DbType.sqlserver);
+        SQLStatement stmt = sqlStatements.get(0);
+
+        SQLServerSchemaStatVisitor visitor = new SQLServerSchemaStatVisitor();
+        stmt.accept(visitor);
+
+        {
+            String output = SQLUtils.toSQLString(stmt, JdbcConstants.SQL_SERVER);
+            Assert.assertEquals("ALTER TABLE N_MerchantBase\n" +
+                    "\tADD CONSTRAINT DF_N_MerchantBase_UnUsedCouponMoney DEFAULT 0 FOR [UnUsedCouponMoney]", output);
+        }
+        {
+            String output = SQLUtils.toSQLString(stmt, JdbcConstants.SQL_SERVER, SQLUtils.DEFAULT_LCASE_FORMAT_OPTION);
+            Assert.assertEquals("alter table N_MerchantBase\n" +
+                    "\tadd constraint DF_N_MerchantBase_UnUsedCouponMoney default 0 for [UnUsedCouponMoney]", output);
+        }
+        Assert.assertEquals(1, visitor.getTables().size());
+        Assert.assertEquals(1, visitor.getColumns().size());
+    }
+
+    @Test
+    public void test_alter_table_constraint_default() {
+
+        String sql = "ALTER TABLE N_MerchantBase ADD  CONSTRAINT DF_N_MerchantBase_UnUsedCouponMoney  DEFAULT 0 FOR UnUsedCouponMoney;";
+
+        List<SQLStatement> sqlStatements = SQLUtils.parseStatements(sql, com.alibaba.druid.DbType.sqlserver);
+
+        Assert.assertEquals("ALTER TABLE N_MerchantBase\n" +
+                "\tADD CONSTRAINT DF_N_MerchantBase_UnUsedCouponMoney DEFAULT 0 FOR UnUsedCouponMoney;", sqlStatements.get(0).toString());
+    }
+
+    @Test
+    public void test_alter_table_add_default() {
+
+        String sql = "alter table GoingHomeMain  add default(0) for MilesTotal with values;";
+
+        List<SQLStatement> sqlStatements = SQLUtils.parseStatements(sql, com.alibaba.druid.DbType.sqlserver);
+
+        // System.out.println(sqlStatements.get(0).toString());
+        Assert.assertEquals("ALTER TABLE GoingHomeMain\n" +
+                "\tADD DEFAULT 0 FOR MilesTotal WITH VALUES;", sqlStatements.get(0).toString());
+
+    }
+
+
+}