content: package com.alibaba.druid.bvt.sql.hive;
  
  import com.alibaba.druid.sql.SQLUtils;
  import com.alibaba.druid.sql.ast.SQLStatement;
  import com.alibaba.druid.sql.visitor.SchemaStatVisitor;
  import com.alibaba.druid.util.JdbcConstants;
  import junit.framework.TestCase;
  
  import java.util.List;
  
  public class HiveInsert_1 extends TestCase {
      public void test_select() throws Exception {
          String sql = "FROM page_view_stg pvs\n" +
                  "INSERT OVERWRITE TABLE page_view PARTITION(dt='2008-06-08', country)\n" +
                  "       SELECT pvs.viewTime, pvs.userid, pvs.page_url, pvs.referrer_url, null, null, pvs.ip, pvs.cnt";
  
          List<SQLStatement> statementList = SQLUtils.parseStatements(sql, JdbcConstants.HIVE);
          SQLStatement stmt = statementList.get(0);
  
          assertEquals(1, statementList.size());
  
          SchemaStatVisitor visitor = SQLUtils.createSchemaStatVisitor(JdbcConstants.HIVE);
          stmt.accept(visitor);
  
          assertEquals("FROM page_view_stg pvs\n" +
                  "INSERT OVERWRITE TABLE page_view PARTITION (dt='2008-06-08', country)\n" +
                  "SELECT pvs.viewTime, pvs.userid, pvs.page_url, pvs.referrer_url, NULL\n" +
                  "\t, NULL, pvs.ip, pvs.cnt", SQLUtils.formatHive(sql));
  
          assertEquals("from page_view_stg pvs\n" +
                  "insert overwrite table page_view partition (dt='2008-06-08', country)\n" +
                  "select pvs.viewTime, pvs.userid, pvs.page_url, pvs.referrer_url, null\n" +
                  "\t, null, pvs.ip, pvs.cnt", SQLUtils.formatHive(sql, SQLUtils.DEFAULT_LCASE_FORMAT_OPTION));
  
  //        System.out.println("Tables : " + visitor.getTables());
  //      System.out.println("fields : " + visitor.getColumns());
  //      System.out.println("coditions : " + visitor.getConditions());
  //      System.out.println("orderBy : " + visitor.getOrderByColumns());
  
          assertEquals(2, visitor.getTables().size());
          assertEquals(8, visitor.getColumns().size());
          assertEquals(0, visitor.getConditions().size());
      }
  }
  