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.dialect.hive.parser.HiveStatementParser;
  import com.alibaba.druid.sql.dialect.mysql.visitor.MySqlSchemaStatVisitor;
  import com.alibaba.druid.sql.visitor.SchemaStatVisitor;
  import com.alibaba.druid.util.JdbcConstants;
  import junit.framework.TestCase;
  
  import java.util.List;
  
  public class HiveCreateTableTest_0 extends TestCase {
      public void test_select() throws Exception {
          String sql = "CREATE EXTERNAL TABLE students (name VARCHAR(64), age INT, gpa DECIMAL(3, 2))\n" +
                  "  CLUSTERED BY (age) INTO 2 BUCKETS STORED AS ORC;";
          assertEquals("CREATE EXTERNAL TABLE students (\n" +
                  "\tname VARCHAR(64),\n" +
                  "\tage INT,\n" +
                  "\tgpa DECIMAL(3, 2)\n" +
                  ")\n" +
                  "CLUSTERED BY (age)\n" +
                  "INTO 2 BUCKETS\n" +
                  "STORED AS ORC;", SQLUtils.formatHive(sql));
          assertEquals("create external table students (\n" +
                  "\tname VARCHAR(64),\n" +
                  "\tage INT,\n" +
                  "\tgpa DECIMAL(3, 2)\n" +
                  ")\n" +
                  "clustered by (age)\n" +
                  "into 2 buckets\n" +
                  "stored as ORC;", SQLUtils.formatHive(sql, SQLUtils.DEFAULT_LCASE_FORMAT_OPTION));
  
          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);
  
          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(1, visitor.getTables().size());
          assertEquals(3, visitor.getColumns().size());
          assertEquals(0, visitor.getConditions().size());
  
          assertTrue(visitor.containsColumn("students", "name"));
          assertTrue(visitor.containsColumn("students", "age"));
          assertTrue(visitor.containsColumn("students", "gpa"));
      }
  
      public void test_create_table_without_as_1() throws Exception {
          //https://cwiki.apache.org/confluence/display/Hive/LanguageManual+DDL#LanguageManualDDL-CreateTable
          String sql = "CREATE TABLE new_key_value_store\n"
              + "   ROW FORMAT SERDE \"org.apache.hadoop.hive.serde2.columnar.ColumnarSerDe\"\n"
              + "   STORED AS RCFile\n"
              + "   AS\n"
              + "SELECT (key % 1024) new_key, concat(key, value) key_value_pair\n"
              + "FROM key_value_store\n"
              + "SORT BY new_key, key_value_pair;";
  
          HiveStatementParser parser = new HiveStatementParser(sql);
          List<SQLStatement> statementList = parser.parseStatementList();
          SQLStatement statement = statementList.get(0);
          System.out.println(statement);
  
          assertEquals(1, statementList.size());
  
          MySqlSchemaStatVisitor visitor = new MySqlSchemaStatVisitor();
          statement.accept(visitor);
  
          System.out.println("Tables : " + visitor.getTables());
          System.out.println("fields : " + visitor.getColumns());
          System.out.println("coditions : " + visitor.getConditions());
          System.out.println("orderBy : " + visitor.getOrderByColumns());
      }
  
      public void test_create_table_without_as_2() throws Exception {
          //https://cwiki.apache.org/confluence/display/Hive/LanguageManual+DDL#LanguageManualDDL-CreateTable
          String sql = "CREATE TABLE new_key_value_store\n"
              + "   ROW FORMAT SERDE \"org.apache.hadoop.hive.serde2.columnar.ColumnarSerDe\"\n"
              + "   STORED AS RCFile\n"
              + "SELECT (key % 1024) new_key, concat(key, value) key_value_pair\n"
              + "FROM key_value_store\n"
              + "SORT BY new_key, key_value_pair;";
  
          HiveStatementParser parser = new HiveStatementParser(sql);
          List<SQLStatement> statementList = parser.parseStatementList();
          SQLStatement statement = statementList.get(0);
          System.out.println(statement);
  
          assertEquals(1, statementList.size());
  
          MySqlSchemaStatVisitor visitor = new MySqlSchemaStatVisitor();
          statement.accept(visitor);
  
          System.out.println("Tables : " + visitor.getTables());
          System.out.println("fields : " + visitor.getColumns());
          System.out.println("coditions : " + visitor.getConditions());
          System.out.println("orderBy : " + visitor.getOrderByColumns());
      }
  }
  