sql parser schema stat support

src/test/java/com/alibaba/druid/bvt/pool/DruidDataSourceFilterTest.java

@@ -21,6 +21,7 @@ public class DruidDataSourceFilterTest extends TestCase {
     }
 
     public void test_filter() throws Exception {
+        System.out.println(System.nanoTime()/(1000 * 1000));
         DruidDataSource dataSource = new DruidDataSource();
 
         Assert.assertEquals(0, dataSource.getProxyFilters().size());

src/test/java/com/alibaba/druid/bvt/sql/mysql/MySqlAlterTableTest1.java

@@ -27,5 +27,14 @@ public class MySqlAlterTableTest1 extends TestCase {
         String output = SQLUtils.toMySqlString(stmt);
         Assert.assertEquals("ALTER TABLE t2\n\tADD COLUMN d TIMESTAMP", output);
     }
+    
+    public void test_alter_2() throws Exception {
+        String sql = "ALTER TABLE t2 ADD INDEX (d), ADD UNIQUE (a);";
+        MySqlStatementParser parser = new MySqlStatementParser(sql);
+        SQLStatement stmt = parser.parseStatementList().get(0);
+        parser.match(Token.EOF);
+        String output = SQLUtils.toMySqlString(stmt);
+        Assert.assertEquals("ALTER TABLE t2\n\tADD INDEX (d),\n\tADD UNIQUE (a)", output);
+    }
 
 }

src/test/java/com/alibaba/druid/bvt/sql/oracle/OracleSchemaStatVisitorTest.java

@@ -0,0 +1,53 @@
+package com.alibaba.druid.bvt.sql.oracle;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import junit.framework.Assert;
+
+import com.alibaba.druid.sql.OracleTest;
+import com.alibaba.druid.sql.ast.SQLStatement;
+import com.alibaba.druid.sql.dialect.oracle.parser.OracleStatementParser;
+import com.alibaba.druid.sql.dialect.oracle.visitor.OracleSchemaStatVisitor;
+import com.alibaba.druid.stat.TableStat;
+import com.alibaba.druid.stat.TableStat.Condition;
+
+public class OracleSchemaStatVisitorTest extends OracleTest {
+
+    public void test_0() throws Exception {
+        String sql = "SELECT id, name name from department d" + //
+                     "   WHERE d.id = ?";
+
+        OracleStatementParser parser = new OracleStatementParser(sql);
+        List<SQLStatement> statementList = parser.parseStatementList();
+        SQLStatement statemen = statementList.get(0);
+        print(statementList);
+
+        Assert.assertEquals(1, statementList.size());
+
+        List<Object> parameters = new ArrayList<Object>();
+        parameters.add(23456);
+        OracleSchemaStatVisitor visitor = new OracleSchemaStatVisitor();
+        visitor.setParameters(parameters);
+        statemen.accept(visitor);
+
+        System.out.println("Tables : " + visitor.getTables());
+        System.out.println("fields : " + visitor.getColumns());
+        System.out.println("coditions : " + visitor.getConditions());
+        System.out.println("relationships : " + visitor.getRelationships());
+
+        Assert.assertEquals(1, visitor.getTables().size());
+
+        Assert.assertTrue(visitor.getTables().containsKey(new TableStat.Name("department")));
+
+        Assert.assertEquals(2, visitor.getColumns().size());
+
+        Assert.assertTrue(visitor.getColumns().contains(new TableStat.Column("department", "id")));
+        Assert.assertTrue(visitor.getColumns().contains(new TableStat.Column("department", "name")));
+        
+        Assert.assertEquals(1, visitor.getConditions().size());
+        
+        Condition condition = visitor.getConditions().get(0);
+        Assert.assertSame(parameters.get(0), condition.getValues().get(0));
+    }
+}