exec/jdbc/src/test/java/org/apache/drill/jdbc/test/TestInformationSchemaColumns.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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 org.apache.drill.jdbc.test;

import static java.sql.ResultSetMetaData.columnNoNulls;
import static java.sql.ResultSetMetaData.columnNullable;
import static org.apache.drill.exec.util.StoragePluginTestUtils.DFS_TMP_SCHEMA;
import static org.hamcrest.CoreMatchers.equalTo;
import static org.hamcrest.CoreMatchers.nullValue;
import static org.hamcrest.MatcherAssert.assertThat;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail;

import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.ResultSetMetaData;
import java.sql.SQLException;
import java.sql.Statement;
import java.sql.Types;

import org.apache.drill.categories.FlakyTest;
import org.apache.drill.jdbc.Driver;
import org.apache.drill.jdbc.JdbcTestBase;
import org.apache.drill.categories.JdbcTest;
import org.junit.AfterClass;
import org.junit.BeforeClass;
import org.junit.Ignore;
import org.junit.Test;
import org.junit.experimental.categories.Category;

// NOTE: TestInformationSchemaColumns and DatabaseMetaDataGetColumnsTest
// have identical sections.  (Cross-maintain them for now; factor out later.)

// TODO:  Review nullability (NULLABLE and IS_NULLABLE columns):
// - It's not clear why Drill sets INFORMATION_SCHEMA.COLUMNS.IS_NULLABLE to
// 'NO' for some columns that contain only null (e.g., for
// "CREATE VIEW x AS SELECT CAST(NULL AS ...) ..."


/**
 * Test class for Drill's INFORMATION_SCHEMA.COLUMNS implementation.
 */
@Category({JdbcTest.class, FlakyTest.class})
public class TestInformationSchemaColumns extends JdbcTestBase {

  private static final String VIEW_NAME =
      TestInformationSchemaColumns.class.getSimpleName() + "_View";


  /** The one shared JDBC connection to Drill. */
  private static Connection connection;


  /** Result set metadata.  For checking columns themselves (not cell
   *  values or row order). */
  private static ResultSetMetaData rowsMetadata;


  ////////////////////
  // Results from INFORMATION_SCHEMA.COLUMN for test columns of various types.
  // Each ResultSet is positioned at first row for, and must not be modified by,
  // test methods.

  //////////
  // For columns in temporary test view (types accessible via casting):

  private static ResultSet mdrOptBOOLEAN;

  // TODO(DRILL-2470): re-enable TINYINT, SMALLINT, and REAL.
  private static ResultSet mdrReqTINYINT;
  private static ResultSet mdrOptSMALLINT;
  private static ResultSet mdrReqINTEGER;
  private static ResultSet mdrOptBIGINT;

  // TODO(DRILL-2470): re-enable TINYINT, SMALLINT, and REAL.
  private static ResultSet mdrOptREAL;
  private static ResultSet mdrOptFLOAT;
  private static ResultSet mdrReqDOUBLE;

  private static ResultSet mdrReqDECIMAL_5_3;
  // No NUMERIC while Drill just maps it to DECIMAL.

  private static ResultSet mdrReqVARCHAR_10;
  private static ResultSet mdrOptVARCHAR;
  private static ResultSet mdrReqCHAR_5;
  // No NCHAR, etc., in Drill (?).
  private static ResultSet mdrOptVARBINARY_16;
  private static ResultSet mdrOptBINARY_65536;

  private static ResultSet mdrReqDATE;
  private static ResultSet mdrReqTIME;
  private static ResultSet mdrOptTIME_7;
  private static ResultSet mdrOptTIMESTAMP;
  // No "... WITH TIME ZONE" in Drill.

  private static ResultSet mdrReqINTERVAL_Y;
  private static ResultSet mdrReqINTERVAL_3Y_Mo;
  private static ResultSet mdrReqINTERVAL_Mo;
  private static ResultSet mdrReqINTERVAL_D;
  private static ResultSet mdrReqINTERVAL_4D_H;
  private static ResultSet mdrReqINTERVAL_3D_Mi;
  private static ResultSet mdrReqINTERVAL_2D_S5;
  private static ResultSet mdrReqINTERVAL_H;
  private static ResultSet mdrReqINTERVAL_1H_Mi;
  private static ResultSet mdrReqINTERVAL_3H_S1;
  private static ResultSet mdrReqINTERVAL_Mi;
  private static ResultSet mdrReqINTERVAL_5Mi_S;
  private static ResultSet mdrReqINTERVAL_S;
  private static ResultSet mdrReqINTERVAL_3S;
  private static ResultSet mdrReqINTERVAL_3S1;

  // For columns in schema hive_test.default's infoschematest table:

  // listtype column:      VARCHAR(65535) ARRAY, non-null(?):
  private static ResultSet mdrReqARRAY;
  // maptype column:       (VARCHAR(65535), INTEGER) MAP, non-null(?):
  private static ResultSet mdrReqMAP;
  // structtype column:    STRUCT(INTEGER sint, BOOLEAN sboolean,
  //                              VARCHAR(65535) sstring), non-null(?):
  private static ResultSet mdrUnkSTRUCT;
  // uniontypetype column: OTHER (?), non=nullable(?):
  private static ResultSet mdrUnkUnion;


  /**
   * Gets SQL <character string literal> representing given string value.
   * <p>
   *    (Encodes {@code '} as {@code ''} and every other character as itself.)
   * </p>
   */
  private static String encodeAsSqlCharStrLiteral( String value ) {
    return "'" + value.replaceAll( "'", "''" ) + "'";
  }


  private static ResultSet setUpRow( final String schemaName,
                                     final String tableOrViewName,
                                     final String columnName ) throws SQLException
  {
    final Statement stmt = connection.createStatement();
    final ResultSet mdrUnk =
        stmt.executeQuery(
            "SELECT * FROM INFORMATION_SCHEMA.COLUMNS "
            + "WHERE TABLE_CATALOG = " + encodeAsSqlCharStrLiteral( "DRILL" )
            + "  AND TABLE_SCHEMA  = " + encodeAsSqlCharStrLiteral( schemaName )
            + "  AND TABLE_NAME    = " + encodeAsSqlCharStrLiteral( tableOrViewName )
            + "  AND COLUMN_NAME   = " + encodeAsSqlCharStrLiteral( columnName )
            );
    assertTrue( "Test setup error:  No row for column DRILL . `" + schemaName + "` . `"
                + tableOrViewName + "` . `" + columnName + "`", mdrUnk.next() );
    return mdrUnk;
  }

  @BeforeClass
  public static void setUpConnectionAndMetadataToCheck() throws Exception {

    // Get JDBC connection to Drill:
    // (Note: Can't use JdbcTest's connect(...) because JdbcTest closes
    // Connection--and other JDBC objects--on test method failure, but this test
    // class uses some objects across methods.)
    connection = new Driver().connect( "jdbc:drill:zk=local", getDefaultProperties());
    final Statement stmt = connection.createStatement();

    ResultSet util;

    /* TODO(DRILL-3253)(start): Update this once we have test plugin supporting all needed types.
    // Create Hive test data, only if not created already (speed optimization):
    util = stmt.executeQuery( "SELECT * FROM INFORMATION_SCHEMA.COLUMNS "
                              + "WHERE TABLE_SCHEMA = 'hive_test.default' "
                              + "  AND TABLE_NAME = 'infoschematest'" );

    int hiveTestColumnRowCount = 0;
    while ( util.next() ) {
      hiveTestColumnRowCount++;
    }
    if ( 0 == hiveTestColumnRowCount ) {
      // No Hive test data--create it.
      new HiveTestDataGenerator().generateTestData();
    } else if ( 17 == hiveTestColumnRowCount ) {
      // Hive data seems to exist already--skip recreating it.
    } else {
      fail("Expected 17 Hive test columns see " + hiveTestColumnRowCount + "."
            + "  Test code is out of date or Hive data is corrupted.");
    }
    TODO(DRILL-3253)(end) */

    // Create temporary test-columns view:
    util = stmt.executeQuery( "USE dfs.tmp" );
    assertTrue( util.next() );
    assertTrue( "Error setting schema for test: " + util.getString( 2 ), util.getBoolean( 1 ) );

    // TODO(DRILL-2470): Adjust when TINYINT is implemented:
    // TODO(DRILL-2470): Adjust when SMALLINT is implemented:
    // TODO(DRILL-2683): Adjust when REAL is implemented:
    util = stmt.executeQuery(
        ""
        +   "CREATE OR REPLACE VIEW " + VIEW_NAME + " AS SELECT "
        + "\n  CAST( NULL    AS BOOLEAN            ) AS mdrOptBOOLEAN,        "
        + "\n  "
        + "\n  CAST(    1    AS INT            ) AS mdrReqTINYINT,        "
        + "\n  CAST( NULL    AS INT           ) AS mdrOptSMALLINT,       "
        //+ "\n  CAST(    1    AS TINYINT            ) AS mdrReqTINYINT,        "
        //+ "\n  CAST( NULL    AS SMALLINT           ) AS mdrOptSMALLINT,       "
        + "\n  CAST(    2    AS INTEGER            ) AS mdrReqINTEGER,        "
        + "\n  CAST( NULL    AS BIGINT             ) AS mdrOptBIGINT,         "
        + "\n  "
        + "\n  CAST( NULL    AS FLOAT               ) AS mdrOptREAL,           "
        //+ "\n  CAST( NULL    AS REAL               ) AS mdrOptREAL,           "
        + "\n  CAST( NULL    AS FLOAT              ) AS mdrOptFLOAT,          "
        + "\n  CAST(  3.3    AS DOUBLE             ) AS mdrReqDOUBLE,         "
        + "\n  "
        + "\n  CAST(  4.4    AS DECIMAL(5,3)       ) AS mdrReqDECIMAL_5_3,    "
        + "\n  "
        + "\n  CAST( 'Hi'    AS VARCHAR(10)        ) AS mdrReqVARCHAR_10,     "
        + "\n  CAST( NULL    AS VARCHAR            ) AS mdrOptVARCHAR,        "
        + "\n  CAST( '55'    AS CHAR(5)            ) AS mdrReqCHAR_5,         "
        + "\n  CAST( NULL    AS VARBINARY(16)      ) AS mdrOptVARBINARY_16,   "
        + "\n  CAST( NULL    AS VARBINARY(65536)   ) AS mdrOptBINARY_65536,   "
        + "\n  CAST( NULL    AS BINARY(8)          ) AS mdrOptBINARY_8,       "
        + "\n  "
        + "\n                   DATE '2015-01-01'    AS mdrReqDATE,           "
        + "\n                   TIME '23:59:59'      AS mdrReqTIME,           "
        + "\n  CAST( NULL    AS TIME(7)            ) AS mdrOptTIME_7,         "
        + "\n  CAST( NULL    AS TIMESTAMP          ) AS mdrOptTIMESTAMP,      "
        + "\n  INTERVAL '1'     YEAR                 AS mdrReqINTERVAL_Y,     "
        + "\n  INTERVAL '1-2'   YEAR(3) TO MONTH     AS mdrReqINTERVAL_3Y_Mo, "
        + "\n  INTERVAL '2'     MONTH                AS mdrReqINTERVAL_Mo,    "
        + "\n  INTERVAL '3'     DAY                  AS mdrReqINTERVAL_D,     "
        + "\n  INTERVAL '3 4'   DAY(4) TO HOUR       AS mdrReqINTERVAL_4D_H,  "
        + "\n  INTERVAL '3 4:5' DAY(3) TO MINUTE     AS mdrReqINTERVAL_3D_Mi, "
        + "\n  INTERVAL '3 4:5:6' DAY(2) TO SECOND(5) AS mdrReqINTERVAL_2D_S5, "
        + "\n  INTERVAL '4'     HOUR                 AS mdrReqINTERVAL_H,     "
        + "\n  INTERVAL '4:5'   HOUR(1) TO MINUTE    AS mdrReqINTERVAL_1H_Mi, "
        + "\n  INTERVAL '4:5:6' HOUR(3) TO SECOND(1) AS mdrReqINTERVAL_3H_S1, "
        + "\n  INTERVAL '5'     MINUTE               AS mdrReqINTERVAL_Mi,    "
        + "\n  INTERVAL '5:6'   MINUTE(5) TO SECOND  AS mdrReqINTERVAL_5Mi_S, "
        + "\n  INTERVAL '6'     SECOND               AS mdrReqINTERVAL_S,     "
        + "\n  INTERVAL '6'     SECOND(3)            AS mdrReqINTERVAL_3S,    "
        + "\n  INTERVAL '6'     SECOND(3, 1)         AS mdrReqINTERVAL_3S1,   "
        + "\n  '' "
        + "\nFROM INFORMATION_SCHEMA.COLUMNS "
        + "\nLIMIT 1 " );
    assertTrue( util.next() );
    assertTrue("Error creating temporary test-columns view " + VIEW_NAME + ": "
          + util.getString( 2 ), util.getBoolean( 1 ) );

    // Set up result rows for temporary test view and Hivetest columns:

    mdrOptBOOLEAN        = setUpRow( DFS_TMP_SCHEMA, VIEW_NAME, "mdrOptBOOLEAN" );

    // TODO(DRILL-2470): Uncomment when TINYINT is implemented:
    //mdrReqTINYINT        = setUpRow( VIEW_SCHEMA, VIEW_NAME, "mdrReqTINYINT" );
    // TODO(DRILL-2470): Uncomment when SMALLINT is implemented:
    //mdrOptSMALLINT       = setUpRow( VIEW_SCHEMA, VIEW_NAME, "mdrOptSMALLINT" );
    mdrReqINTEGER        = setUpRow( DFS_TMP_SCHEMA, VIEW_NAME, "mdrReqINTEGER" );
    mdrOptBIGINT         = setUpRow( DFS_TMP_SCHEMA, VIEW_NAME, "mdrOptBIGINT" );

    // TODO(DRILL-2683): Uncomment when REAL is implemented:
    //mdrOptREAL           = setUpRow( VIEW_SCHEMA, VIEW_NAME, "mdrOptREAL" );
    mdrOptFLOAT          = setUpRow( DFS_TMP_SCHEMA, VIEW_NAME, "mdrOptFLOAT" );
    mdrReqDOUBLE         = setUpRow( DFS_TMP_SCHEMA, VIEW_NAME, "mdrReqDOUBLE" );

    mdrReqDECIMAL_5_3    = setUpRow( DFS_TMP_SCHEMA, VIEW_NAME, "mdrReqDECIMAL_5_3" );

    mdrReqVARCHAR_10     = setUpRow( DFS_TMP_SCHEMA, VIEW_NAME, "mdrReqVARCHAR_10" );
    mdrOptVARCHAR        = setUpRow( DFS_TMP_SCHEMA, VIEW_NAME, "mdrOptVARCHAR" );
    mdrReqCHAR_5         = setUpRow( DFS_TMP_SCHEMA, VIEW_NAME, "mdrReqCHAR_5" );
    mdrOptVARBINARY_16   = setUpRow( DFS_TMP_SCHEMA, VIEW_NAME, "mdrOptVARBINARY_16" );
    mdrOptBINARY_65536   = setUpRow( DFS_TMP_SCHEMA, VIEW_NAME, "mdrOptBINARY_65536" );

    mdrReqDATE           = setUpRow( DFS_TMP_SCHEMA, VIEW_NAME, "mdrReqDATE" );
    mdrReqTIME           = setUpRow( DFS_TMP_SCHEMA, VIEW_NAME, "mdrReqTIME" );
    mdrOptTIME_7         = setUpRow( DFS_TMP_SCHEMA, VIEW_NAME, "mdrOptTIME_7" );
    mdrOptTIMESTAMP      = setUpRow( DFS_TMP_SCHEMA, VIEW_NAME, "mdrOptTIMESTAMP" );

    mdrReqINTERVAL_Y     = setUpRow( DFS_TMP_SCHEMA, VIEW_NAME, "mdrReqINTERVAL_Y" );
    mdrReqINTERVAL_3Y_Mo = setUpRow( DFS_TMP_SCHEMA, VIEW_NAME, "mdrReqINTERVAL_3Y_Mo" );
    mdrReqINTERVAL_Mo    = setUpRow( DFS_TMP_SCHEMA, VIEW_NAME, "mdrReqINTERVAL_Mo" );
    mdrReqINTERVAL_D     = setUpRow( DFS_TMP_SCHEMA, VIEW_NAME, "mdrReqINTERVAL_D" );
    mdrReqINTERVAL_4D_H  = setUpRow( DFS_TMP_SCHEMA, VIEW_NAME, "mdrReqINTERVAL_4D_H" );
    mdrReqINTERVAL_3D_Mi = setUpRow( DFS_TMP_SCHEMA, VIEW_NAME, "mdrReqINTERVAL_3D_Mi" );
    mdrReqINTERVAL_2D_S5 = setUpRow( DFS_TMP_SCHEMA, VIEW_NAME, "mdrReqINTERVAL_2D_S5" );
    mdrReqINTERVAL_H     = setUpRow( DFS_TMP_SCHEMA, VIEW_NAME, "mdrReqINTERVAL_H" );
    mdrReqINTERVAL_1H_Mi = setUpRow( DFS_TMP_SCHEMA, VIEW_NAME, "mdrReqINTERVAL_1H_Mi" );
    mdrReqINTERVAL_3H_S1 = setUpRow( DFS_TMP_SCHEMA, VIEW_NAME, "mdrReqINTERVAL_3H_S1" );
    mdrReqINTERVAL_Mi    = setUpRow( DFS_TMP_SCHEMA, VIEW_NAME, "mdrReqINTERVAL_Mi" );
    mdrReqINTERVAL_5Mi_S = setUpRow( DFS_TMP_SCHEMA, VIEW_NAME, "mdrReqINTERVAL_5Mi_S" );
    mdrReqINTERVAL_S     = setUpRow( DFS_TMP_SCHEMA, VIEW_NAME, "mdrReqINTERVAL_S" );
    mdrReqINTERVAL_3S    = setUpRow( DFS_TMP_SCHEMA, VIEW_NAME, "mdrReqINTERVAL_3S" );
    mdrReqINTERVAL_3S1   = setUpRow( DFS_TMP_SCHEMA, VIEW_NAME, "mdrReqINTERVAL_3S1" );

    /* TODO(DRILL-3253)(start): Update this once we have test plugin supporting all needed types.
    mdrReqARRAY   = setUpRow( "hive_test.default", "infoschematest", "listtype" );
    mdrReqMAP     = setUpRow( "hive_test.default", "infoschematest", "maptype" );
    mdrUnkSTRUCT = setUpRow( "hive_test.default", "infoschematest", "structtype" );
    mdrUnkUnion  = setUpRow( "hive_test.default", "infoschematest", "uniontypetype" );
    TODO(DRILL-3253)(end) */

    // Set up result set's metadata:

    // Get all columns for more diversity of values (e.g., nulls and non-nulls),
    // in case that affects metadata (e.g., nullability) (in future).
    final Statement stmt2 = connection.createStatement();
    final ResultSet allColumns =
            stmt2.executeQuery( "SELECT * FROM INFORMATION_SCHEMA.COLUMNS " );
    rowsMetadata = allColumns.getMetaData();
  }

  @AfterClass
  public static void tearDownConnection() throws SQLException {
    final ResultSet util =
        connection.createStatement().executeQuery( "DROP VIEW " + VIEW_NAME + "" );
    assertTrue( util.next() );
    assertTrue("Error dropping temporary test-columns view " + VIEW_NAME + ": "
         + util.getString( 2 ), util.getBoolean( 1 ) );
    connection.close();
  }


  private Integer getIntOrNull( ResultSet row, String columnName ) throws SQLException {
    final int value = row.getInt( columnName );
    return row.wasNull() ? null : Integer.valueOf( value );
  }


  //////////////////////////////////////////////////////////////////////
  // Tests:

  // INFORMATION_SCHEMA.COLUMNS column positions:
  //
  // 1. TABLE_CATALOG
  // 2. TABLE_SCHEMA
  // 3. TABLE_NAME
  // 4. COLUMN_NAME
  // 5. ORDINAL_POSITION
  // 6. COLUMN_DEFAULT
  // 7. IS_NULLABLE
  // 8. DATA_TYPE
  // 9. CHARACTER_MAXIMUM_LENGTH
  // 10. CHARACTER_OCTET_LENGTH
  // 11. NUMERIC_PRECISION
  // 12. NUMERIC_PRECISION_RADIX
  // 13. NUMERIC_SCALE
  // 14. DATETIME_PRECISION
  // 15. INTERVAL_TYPE
  // 16. INTERVAL_PRECISION
  // 17. CHARACTER_SET_CATALOG
  // 18. CHARACTER_SET_SCHEMA
  // 19. CHARACTER_SET_NAME
  // 20. COLLATION_CATALOG
  // 21. COLLATION_SCHEMA
  // 22. COLLATION_NAME
  // 23. DOMAIN_CATALOG
  // 24. DOMAIN_SCHEMA
  // 25. DOMAIN_NAME
  // 26. UDT_CATALOG
  // 27. UDT_SCHEMA
  // 28. UDT_NAME
  // 29. SCOPE_CATALOG
  // 30. SCOPE_SCHEMA
  // 31. SCOPE_NAME
  // 32. MAXIMUM_CARDINALITY
  // 33. DTD_IDENTIFIER
  // 34. IS_SELF_REFERENCING
  // 35. IS_IDENTITY
  // 36. IDENTITY_GENERATION
  // 37. IDENTITY_START
  // 38. IDENTITY_INCREMENT
  // 39. IDENTITY_MAXIMUM
  // 40. IDENTITY_MINIMUM
  // 41. IDENTITY_CYCLE
  // 42. IS_GENERATED
  // 43. GENERATION_EXPRESSION
  // 44. IS_SYSTEM_TIME_PERIOD_START
  // 45. IS_SYSTEM_TIME_PERIOD_END
  // 46. SYSTEM_TIME_PERIOD_TIMESTAMP_GENERATION
  // 47. IS_UPDATABLE
  // 48. DECLARED_DATA_TYPE
  // 49. DECLARED_NUMERIC_PRECISION
  // 50. DECLARED_NUMERIC_SCALE


  ////////////////////////////////////////////////////////////
  // Number of columns.

  @Ignore( "unless and until all COLUMNS columns are present" )
  @Test
  public void testMetadataHasRightNumberOfColumns() throws SQLException {
    // Is this check valid?  (Are extra columns allowed?)
    assertThat( "column count", rowsMetadata.getColumnCount(), equalTo( 50 ) );
  }

  @Test
  public void testMetadataHasInterimNumberOfColumns() throws SQLException {
    assertThat( "column count", rowsMetadata.getColumnCount(), equalTo( 24 ) );
  }


  ////////////////////////////////////////////////////////////
  // #1: TABLE_CATALOG:
  // - SQL:
  // - Drill:  Always "DRILL".
  // - (Meta): VARCHAR; Non-nullable(?);

  @Test
  public void test_TABLE_CATALOG_isAtRightPosition() throws SQLException {
    assertThat( rowsMetadata.getColumnLabel( 1 ), equalTo( "TABLE_CATALOG" ) );
  }

  @Test
  public void test_TABLE_CATALOG_hasRightValue_mdrOptBOOLEAN() throws SQLException {
    assertThat( mdrOptBOOLEAN.getString( "TABLE_CATALOG" ), equalTo( "DRILL" ) );
  }

  // Not bothering with other test columns for TABLE_CAT.

  @Test
  public void test_TABLE_CATALOG_hasSameNameAndLabel() throws SQLException {
    assertThat( rowsMetadata.getColumnName( 1 ), equalTo( "TABLE_CATALOG" ) );
  }

  @Test
  public void test_TABLE_CATALOG_hasRightTypeString() throws SQLException {
    assertThat( rowsMetadata.getColumnTypeName( 1 ),
                equalTo( "CHARACTER VARYING" ) );
  }

  @Test
  public void test_TABLE_CATALOG_hasRightTypeCode() throws SQLException {
    assertThat( rowsMetadata.getColumnType( 1 ), equalTo( Types.VARCHAR ) );
  }

  @Ignore( "until resolved:  any requirement on nullability (DRILL-2420?)" )
  @Test
  public void test_TABLE_CATALOG_hasRightNullability() throws SQLException {
    assertThat( "ResultSetMetaData.column...Null... nullability code:",
                rowsMetadata.isNullable( 1 ), equalTo( columnNoNulls ) );
  }


  ////////////////////////////////////////////////////////////
  // #2: TABLE_SCHEMA:
  // - SQL:
  // - Drill:
  // - (Meta): VARCHAR; Non-nullable(?);

  @Test
  public void test_TABLE_SCHEMA_isAtRightPosition() throws SQLException {
    assertThat( rowsMetadata.getColumnLabel( 2 ), equalTo( "TABLE_SCHEMA" ) );
  }

  @Test
  public void test_TABLE_SCHEMA_hasRightValue_mdrOptBOOLEAN() throws SQLException {
    assertThat( mdrOptBOOLEAN.getString( "TABLE_SCHEMA" ), equalTo( DFS_TMP_SCHEMA ) );
  }

  // Not bothering with other _local_view_ test columns for TABLE_SCHEM.

  @Test
  @Ignore( "TODO(DRILL-3253): unignore when we have all-types test storage plugin" )
  public void test_TABLE_SCHEMA_hasRightValue_tdbARRAY() throws SQLException {
    assertThat( mdrReqARRAY.getString( "TABLE_SCHEMA" ), equalTo( "hive_test.default" ) );
  }

  // Not bothering with other Hive test columns for TABLE_SCHEM.

  @Test
  public void test_TABLE_SCHEMA_hasSameNameAndLabel() throws SQLException {
    assertThat( rowsMetadata.getColumnName( 2 ), equalTo( "TABLE_SCHEMA" ) );
  }

  @Test
  public void test_TABLE_SCHEMA_hasRightTypeString() throws SQLException {
    assertThat( rowsMetadata.getColumnTypeName( 2 ),
                equalTo( "CHARACTER VARYING" ) );
  }

  @Test
  public void test_TABLE_SCHEMA_hasRightTypeCode() throws SQLException {
    assertThat( rowsMetadata.getColumnType( 2 ), equalTo( Types.VARCHAR ) );
  }

  @Ignore( "until resolved:  any requirement on nullability (DRILL-2420?)" )
  @Test
  public void test_TABLE_SCHEMA_hasRightNullability() throws SQLException {
    assertThat( "ResultSetMetaData.column...Null... nullability code:",
                rowsMetadata.isNullable( 2 ), equalTo( columnNoNulls ) );
  }


  ////////////////////////////////////////////////////////////
  // #3: TABLE_NAME:
  // - SQL:
  // - Drill:
  // - (Meta): VARCHAR; Non-nullable(?);

  @Test
  public void test_TABLE_NAME_isAtRightPosition() throws SQLException {
    assertThat( rowsMetadata.getColumnLabel( 3 ), equalTo( "TABLE_NAME" ) );
  }

  @Test
  public void test_TABLE_NAME_hasRightValue_mdrOptBOOLEAN() throws SQLException {
    assertThat( mdrOptBOOLEAN.getString( "TABLE_NAME" ), equalTo( VIEW_NAME ) );
  }

  // Not bothering with other _local_view_ test columns for TABLE_NAME.

  @Test
  public void test_TABLE_NAME_hasSameNameAndLabel() throws SQLException {
    assertThat( rowsMetadata.getColumnName( 3 ), equalTo( "TABLE_NAME" ) );
  }

  @Test
  public void test_TABLE_NAME_hasRightTypeString() throws SQLException {
    assertThat( rowsMetadata.getColumnTypeName( 3 ),
                equalTo( "CHARACTER VARYING" ) );
  }

  @Test
  public void test_TABLE_NAME_hasRightTypeCode() throws SQLException {
    assertThat( rowsMetadata.getColumnType( 3 ), equalTo( Types.VARCHAR ) );
  }

  @Ignore( "until resolved:  any requirement on nullability (DRILL-2420?)" )
  @Test
  public void test_TABLE_NAME_hasRightNullability() throws SQLException {
    assertThat( "ResultSetMetaData.column...Null... nullability code:",
                rowsMetadata.isNullable( 3 ), equalTo( columnNoNulls ) );
  }


  ////////////////////////////////////////////////////////////
  // #4: COLUMN_NAME:
  // - SQL:
  // - Drill:
  // - (Meta): VARCHAR; Non-nullable(?);

  @Test
  public void test_COLUMN_NAME_isAtRightPosition() throws SQLException {
    assertThat( rowsMetadata.getColumnLabel( 4 ), equalTo( "COLUMN_NAME" ) );
  }

  @Test
  public void test_COLUMN_NAME_hasRightValue_mdrOptBOOLEAN() throws SQLException {
    assertThat( mdrOptBOOLEAN.getString( "COLUMN_NAME" ), equalTo( "mdrOptBOOLEAN" ) );
  }

  // Not bothering with other _local_view_ test columns for TABLE_SCHEM.

  @Test
  @Ignore( "TODO(DRILL-3253): unignore when we have all-types test storage plugin" )
  public void test_COLUMN_NAME_hasRightValue_tdbARRAY() throws SQLException {
    assertThat( mdrReqARRAY.getString( "COLUMN_NAME" ), equalTo( "listtype" ) );
  }

  // Not bothering with other Hive test columns for TABLE_SCHEM.

  @Test
  public void test_COLUMN_NAME_hasSameNameAndLabel() throws SQLException {
    assertThat( rowsMetadata.getColumnName( 4 ), equalTo( "COLUMN_NAME" ) );
  }

  @Test
  public void test_COLUMN_NAME_hasRightTypeString() throws SQLException {
    assertThat( rowsMetadata.getColumnTypeName( 4 ),
                equalTo( "CHARACTER VARYING" ) );
  }

  @Test
  public void test_COLUMN_NAME_hasRightTypeCode() throws SQLException {
    assertThat( rowsMetadata.getColumnType( 4 ), equalTo( Types.VARCHAR ) );
  }

  @Ignore( "until resolved:  any requirement on nullability (DRILL-2420?)" )
  @Test
  public void test_COLUMN_NAME_hasRightNullability() throws SQLException {
    assertThat( "ResultSetMetaData.column...Null... nullability code:",
                rowsMetadata.isNullable( 4 ), equalTo( columnNoNulls ) );
  }


  ////////////////////////////////////////////////////////////
  // #5: ORDINAL_POSITION:
  // - SQL:
  // - Drill:
  // - (Meta):  INTEGER NOT NULL

  @Test
  public void test_ORDINAL_POSITION_isAtRightPosition() throws SQLException {
    assertThat( rowsMetadata.getColumnLabel( 5 ), equalTo( "ORDINAL_POSITION" ) );
  }

  @Test
  public void test_ORDINAL_POSITION_hasRightValue_mdrOptBOOLEAN() throws SQLException {
    assertThat( mdrOptBOOLEAN.getInt( "ORDINAL_POSITION" ), equalTo( 1 ) );
  }

  @Ignore( "TODO(DRILL-2470): unignore when TINYINT is implemented" )
  @Test
  public void test_ORDINAL_POSITION_hasRightValue_mdrReqTINYINT() throws SQLException {
    assertThat( mdrReqTINYINT.getInt( "ORDINAL_POSITION" ), equalTo( 2 ) );
  }

  @Ignore( "TODO(DRILL-2470): unignore when SMALLINT is implemented" )
  @Test
  public void test_ORDINAL_POSITION_hasRightValue_mdrOptSMALLINT() throws SQLException {
    assertThat( mdrOptSMALLINT.getInt( "ORDINAL_POSITION" ), equalTo( 3 ) );
  }

  @Test
  public void test_ORDINAL_POSITION_hasRightValue_mdrReqINTEGER() throws SQLException {
    assertThat( mdrReqINTEGER.getInt( "ORDINAL_POSITION" ), equalTo( 4 ) );
  }

  @Test
  public void test_ORDINAL_POSITION_hasRightValue_mdrOptBIGINT() throws SQLException {
    assertThat( mdrOptBIGINT.getInt( "ORDINAL_POSITION" ), equalTo( 5 ) );
  }

  @Ignore( "TODO(DRILL-2683): unignore when REAL is implemented" )
  @Test
  public void test_ORDINAL_POSITION_hasRightValue_mdrOptREAL() throws SQLException {
    assertThat( mdrOptREAL.getInt( "ORDINAL_POSITION" ), equalTo( 6 ) );
  }

  @Test
  public void test_ORDINAL_POSITION_hasRightValue_mdrOptFLOAT() throws SQLException {
    assertThat( mdrOptFLOAT.getInt( "ORDINAL_POSITION" ), equalTo( 7 ) );
  }

  @Test
  public void test_ORDINAL_POSITION_hasRightValue_mdrReqDOUBLE() throws SQLException {
    assertThat( mdrReqDOUBLE.getInt( "ORDINAL_POSITION" ), equalTo( 8 ) );
  }

  @Test
  @Ignore( "TODO(DRILL-3253): unignore when we have all-types test storage plugin" )
  public void test_ORDINAL_POSITION_hasRightValue_tdbARRAY() throws SQLException {
    assertThat( mdrReqARRAY.getInt( "ORDINAL_POSITION" ), equalTo( 14 ) );
  }

  @Test
  public void test_ORDINAL_POSITION_hasSameNameAndLabel() throws SQLException {
    assertThat( rowsMetadata.getColumnName( 5 ), equalTo( "ORDINAL_POSITION" ) );
  }

  @Test
  public void test_ORDINAL_POSITION_hasRightTypeString() throws SQLException {
    assertThat( rowsMetadata.getColumnTypeName( 5 ), equalTo( "INTEGER" ) );
  }

  @Test
  public void test_ORDINAL_POSITION_hasRightTypeCode() throws SQLException {
    assertThat( rowsMetadata.getColumnType( 5 ), equalTo( Types.INTEGER ) );
  }

  @Test
  public void test_ORDINAL_POSITION_hasRightNullability() throws SQLException {
    assertThat( "ResultSetMetaData.column...Null... nullability code:",
                rowsMetadata.isNullable( 5 ), equalTo( columnNoNulls ) );
  }


  ////////////////////////////////////////////////////////////
  // #6: COLUMN_DEFAULT:
  // - SQL:
  // - Drill:
  // - (Meta): VARCHAR; Nullable;

  @Test
  public void test_COLUMN_DEFAULT_isAtRightPosition() throws SQLException {
    assertThat( rowsMetadata.getColumnLabel( 6 ), equalTo( "COLUMN_DEFAULT" ) );
  }

  @Test
  public void test_COLUMN_DEFAULT_hasRightValue_mdrOptBOOLEAN() throws SQLException {
    assertThat( mdrOptBOOLEAN.getString( "COLUMN_DEFAULT" ), nullValue() );
  }

  // Not bothering with other _local_view_ test columns for COLUMN_DEFAULT.

  @Test
  @Ignore( "TODO(DRILL-3253): unignore when we have all-types test storage plugin" )
  public void test_COLUMN_DEFAULT_hasRightValue_tdbARRAY() throws SQLException {
    assertThat( mdrReqARRAY.getString( "COLUMN_DEFAULT" ), nullValue() );
  }

  // Not bothering with other Hive test columns for TABLE_SCHEM.

  @Test
  public void test_COLUMN_DEFAULT_hasSameNameAndLabel() throws SQLException {
    assertThat( rowsMetadata.getColumnName( 6 ), equalTo( "COLUMN_DEFAULT" ) );
  }

  @Test
  public void test_COLUMN_DEFAULT_hasRightTypeString() throws SQLException {
    assertThat( rowsMetadata.getColumnTypeName( 6 ),
                equalTo( "CHARACTER VARYING" ) );
  }

  @Test
  public void test_COLUMN_DEFAULT_hasRightTypeCode() throws SQLException {
    assertThat( rowsMetadata.getColumnType( 6 ), equalTo( Types.VARCHAR ) );
  }

  @Test
  public void test_COLUMN_DEFAULT_hasRightNullability() throws SQLException {
    assertThat( "ResultSetMetaData.column...Null... nullability code:",
                rowsMetadata.isNullable( 6 ), equalTo( columnNullable ) );
  }


  ////////////////////////////////////////////////////////////
  // #7: IS_NULLABLE:
  // - SQL:
  //   YES  The column is possibly nullable.
  //   NO   The column is known not nullable.
  // - Drill:
  // - (Meta): VARCHAR; Non-nullable(?).

  @Test
  public void test_IS_NULLABLE_isAtRightPosition() throws SQLException {
    assertThat( rowsMetadata.getColumnLabel( 7 ), equalTo( "IS_NULLABLE" ) );
  }

  @Test
  public void test_IS_NULLABLE_hasRightValue_mdrOptBOOLEAN() throws SQLException {
    assertThat( "ResultSetMetaData.column...Null... nullability code:",
                mdrOptBOOLEAN.getString( "IS_NULLABLE" ), equalTo( "YES" ) );
  }

  @Ignore( "TODO(DRILL-2470): unignore when TINYINT is implemented" )
  @Test
  public void test_IS_NULLABLE_hasRightValue_mdrReqTINYINT() throws SQLException {
    assertThat( "ResultSetMetaData.column...Null... nullability code:",
                mdrReqTINYINT.getString( "IS_NULLABLE" ), equalTo( "NO" ) );
  }

  @Ignore( "TODO(DRILL-2470): unignore when SMALLINT is implemented" )
  @Test
  public void test_IS_NULLABLE_hasRightValue_mdrOptSMALLINT() throws SQLException {
    assertThat( "ResultSetMetaData.column...Null... nullability code:",
                mdrOptSMALLINT.getString( "IS_NULLABLE" ), equalTo( "YES" ) );
  }

  @Test
  public void test_IS_NULLABLE_hasRightValue_mdrReqINTEGER() throws SQLException {
    assertThat( "ResultSetMetaData.column...Null... nullability code:",
                mdrReqINTEGER.getString( "IS_NULLABLE" ), equalTo( "NO" ) );
  }

  @Test
  public void test_IS_NULLABLE_hasRightValue_mdrOptBIGINT() throws SQLException {
    assertThat( "ResultSetMetaData.column...Null... nullability code:",
                mdrOptBIGINT.getString( "IS_NULLABLE" ), equalTo( "YES" ) );
  }

  @Ignore( "TODO(DRILL-2683): unignore when REAL is implemented" )
  @Test
  public void test_IS_NULLABLE_hasRightValue_mdrOptREAL() throws SQLException {
    assertThat( "ResultSetMetaData.column...Null... nullability code:",
                mdrOptREAL.getString( "IS_NULLABLE" ), equalTo( "YES" ) );
  }

  @Test
  public void test_IS_NULLABLE_hasRightValue_mdrOptFLOAT() throws SQLException {
    assertThat( "ResultSetMetaData.column...Null... nullability code:",
                mdrOptFLOAT.getString( "IS_NULLABLE" ), equalTo( "YES" ) );
  }

  @Test
  public void test_IS_NULLABLE_hasRightValue_mdrReqDOUBLE() throws SQLException {
    assertThat( "ResultSetMetaData.column...Null... nullability code:",
                mdrReqDOUBLE.getString( "IS_NULLABLE" ), equalTo( "NO" ) );
  }

  @Test
  public void test_IS_NULLABLE_hasRightValue_mdrReqDECIMAL_5_3() throws SQLException {
    assertThat( "ResultSetMetaData.column...Null... nullability code:",
                mdrReqDECIMAL_5_3.getString( "IS_NULLABLE" ), equalTo( "NO" ) );
  }

  @Test
  public void test_IS_NULLABLE_hasRightValue_mdrReqVARCHAR_10() throws SQLException {
    assertThat( "ResultSetMetaData.column...Null... nullability code:",
                mdrReqVARCHAR_10.getString( "IS_NULLABLE" ), equalTo( "NO" ) );
  }

  @Test
  public void test_IS_NULLABLE_hasRightValue_mdrOptVARCHAR() throws SQLException {
    assertThat( "ResultSetMetaData.column...Null... nullability code:",
                mdrOptVARCHAR.getString( "IS_NULLABLE" ), equalTo( "YES" ) );
  }

  @Test
  public void test_IS_NULLABLE_hasRightValue_mdrReqCHAR_5() throws SQLException {
    assertThat( "ResultSetMetaData.column...Null... nullability code:",
                mdrReqCHAR_5.getString( "IS_NULLABLE" ), equalTo( "NO" ) );
  }

  @Test
  public void test_IS_NULLABLE_hasRightValue_mdrOptVARBINARY_16() throws SQLException {
    assertThat( "ResultSetMetaData.column...Null... nullability code:",
                mdrOptVARBINARY_16.getString( "IS_NULLABLE" ), equalTo( "YES" ) );
  }

  @Test
  public void test_IS_NULLABLE_hasRightValue_mdrOptBINARY_1048576() throws SQLException {
    assertThat( "ResultSetMetaData.column...Null... nullability code:",
                mdrOptBINARY_65536.getString( "IS_NULLABLE" ), equalTo( "YES" ) );
  }

  @Test
  public void test_IS_NULLABLE_hasRightValue_mdrReqDATE() throws SQLException {
    assertThat( "ResultSetMetaData.column...Null... nullability code:",
                mdrReqDATE.getString( "IS_NULLABLE" ), equalTo( "NO" ) );
  }

  @Test
  public void test_IS_NULLABLE_hasRightValue_mdrReqTIME() throws SQLException {
    assertThat( "ResultSetMetaData.column...Null... nullability code:",
                mdrReqTIME.getString( "IS_NULLABLE" ), equalTo( "NO" ) );
  }

  @Test
  public void test_IS_NULLABLE_hasRightValue_mdrOptTIME_7() throws SQLException {
    assertThat( "ResultSetMetaData.column...Null... nullability code:",
                mdrOptTIME_7.getString( "IS_NULLABLE" ), equalTo( "YES" ) );
  }

  @Test
  public void test_IS_NULLABLE_hasRightValue_mdrOptTIMESTAMP() throws SQLException {
    assertThat( "ResultSetMetaData.column...Null... nullability code:",
                mdrOptTIMESTAMP.getString( "IS_NULLABLE" ), equalTo( "YES" ) );
  }

  @Test
  public void test_IS_NULLABLE_hasRightValue_mdrReqINTERVAL_Y() throws SQLException {
    assertThat( "ResultSetMetaData.column...Null... nullability code:",
                mdrReqINTERVAL_Y.getString( "IS_NULLABLE" ), equalTo( "NO" ) );
  }

  @Test
  public void test_IS_NULLABLE_hasRightValue_mdrReqINTERVAL_H_S3() throws SQLException {
    assertThat( "ResultSetMetaData.column...Null... nullability code:",
                mdrReqINTERVAL_3H_S1.getString( "IS_NULLABLE" ), equalTo( "NO" ) );
  }

  @Test
  @Ignore( "TODO(DRILL-3253): unignore when we have all-types test storage plugin" )
  public void test_IS_NULLABLE_hasRightValue_tdbARRAY() throws SQLException {
    assertThat( "ResultSetMetaData.column...Null... nullability code:",
                mdrReqARRAY.getString( "IS_NULLABLE" ), equalTo( "NO" ) );
  }

  @Test
  @Ignore( "TODO(DRILL-3253): unignore when we have all-types test storage plugin" )
  public void test_IS_NULLABLE_hasRightValue_tbdMAP() throws SQLException {
    assertThat( "ResultSetMetaData.column...Null... nullability code:",
                mdrReqMAP.getString( "IS_NULLABLE" ), equalTo( "NO" ) );
  }

  @Ignore( "TODO(DRILL-3253): unignore when we have all-types test storage plugin" )
  @Test
  public void test_IS_NULLABLE_hasRightValue_tbdSTRUCT() throws SQLException {
    assertThat( mdrUnkSTRUCT.getString( "IS_NULLABLE" ), equalTo( "YES" ) );
    // To-do:  Determine which.
    assertThat( mdrUnkSTRUCT.getString( "IS_NULLABLE" ), equalTo( "NO" ) );
  }

  @Ignore( "TODO(DRILL-3253): unignore when we have all-types test storage plugin" )
  @Test
  public void test_IS_NULLABLE_hasRightValue_tbdUnion() throws SQLException {
    assertThat( "ResultSetMetaData.column...Null... nullability code:",
                mdrUnkUnion.getString( "IS_NULLABLE" ), equalTo( "YES" ) );
    // To-do:  Determine which.
    assertThat( "ResultSetMetaData.column...Null... nullability code:",
                mdrUnkUnion.getString( "IS_NULLABLE" ), equalTo( "NO" ) );
  }

  @Test
  public void test_IS_NULLABLE_hasSameNameAndLabel() throws SQLException {
    assertThat( rowsMetadata.getColumnName( 7 ), equalTo( "IS_NULLABLE" ) );
  }

  @Test
  public void test_IS_NULLABLE_hasRightTypeString() throws SQLException {
    assertThat( rowsMetadata.getColumnTypeName( 7 ),
                equalTo( "CHARACTER VARYING" ) );
  }

  @Test
  public void test_IS_NULLABLE_hasRightTypeCode() throws SQLException {
    assertThat( rowsMetadata.getColumnType( 7 ), equalTo( Types.VARCHAR ) );
  }

  @Ignore( "until resolved:  any requirement on nullability (DRILL-2420?)" )
  @Test
  public void test_IS_NULLABLE_hasRightNullability() throws SQLException {
    assertThat( "ResultSetMetaData.column...Null... nullability code:",
                rowsMetadata.isNullable( 7 ), equalTo( columnNoNulls ) );
  }


  ////////////////////////////////////////////////////////////
  // #8: DATA_TYPE:
  // - SQL:
  // - Drill:
  // - (Meta): VARCHAR; Non-nullable(?);

  @Test
  public void test_DATA_TYPE_isAtRightPosition() throws SQLException {
    assertThat( rowsMetadata.getColumnLabel( 8 ), equalTo( "DATA_TYPE" ) );
  }

  @Test
  public void test_DATA_TYPE_hasRightValue_mdrOptBOOLEAN() throws SQLException {
    assertThat( mdrOptBOOLEAN.getString( "DATA_TYPE" ), equalTo( "BOOLEAN" ) );
  }

  @Ignore( "TODO(DRILL-2470): unignore when TINYINT is implemented" )
  @Test
  public void test_DATA_TYPE_hasRightValue_mdrReqTINYINT() throws SQLException {
    assertThat( mdrReqTINYINT.getString( "DATA_TYPE" ), equalTo( "TINYINT" ) );
  }

  @Ignore( "TODO(DRILL-2470): unignore when SMALLINT is implemented" )
  @Test
  public void test_DATA_TYPE_hasRightValue_mdrOptSMALLINT() throws SQLException {
    assertThat( mdrOptSMALLINT.getString( "DATA_TYPE" ), equalTo( "SMALLINT" ) );
  }

  @Test
  public void test_DATA_TYPE_hasRightValue_mdrReqINTEGER() throws SQLException {
    assertThat( mdrReqINTEGER.getString( "DATA_TYPE" ), equalTo( "INTEGER" ) );
  }

  @Test
  public void test_DATA_TYPE_hasRightValue_mdrOptBIGINT() throws SQLException {
    assertThat( mdrOptBIGINT.getString( "DATA_TYPE" ), equalTo( "BIGINT" ) );
  }

  @Ignore( "TODO(DRILL-2683): unignore when REAL is implemented" )
  @Test
  public void test_DATA_TYPE_hasRightValue_mdrOptREAL() throws SQLException {
    assertThat( mdrOptREAL.getString( "DATA_TYPE" ), equalTo( "REAL" ) );
  }

  @Test
  public void test_DATA_TYPE_hasRightValue_mdrOptFLOAT() throws SQLException {
    assertThat( mdrOptFLOAT.getString( "DATA_TYPE" ), equalTo( "FLOAT" ) );
  }

  @Test
  public void test_DATA_TYPE_hasRightValue_mdrReqDOUBLE() throws SQLException {
    assertThat( mdrReqDOUBLE.getString( "DATA_TYPE" ), equalTo( "DOUBLE" ) );
  }

  @Test
  public void test_DATA_TYPE_hasRightValue_mdrReqDECIMAL_5_3() throws SQLException {
    assertThat( mdrReqDECIMAL_5_3.getString( "DATA_TYPE" ), equalTo( "DECIMAL" ) );
  }

  @Test
  public void test_DATA_TYPE_hasRightValue_mdrReqVARCHAR_10() throws SQLException {
    assertThat( mdrReqVARCHAR_10.getString( "DATA_TYPE" ), equalTo( "CHARACTER VARYING" ) );
  }

  @Test
  public void test_DATA_TYPE_hasRightValue_mdrOptVARCHAR() throws SQLException {
    assertThat( mdrOptVARCHAR.getString( "DATA_TYPE" ), equalTo( "CHARACTER VARYING" ) );
  }

  @Test
  public void test_DATA_TYPE_hasRightValue_mdrReqCHAR_5() throws SQLException {
    assertThat( mdrReqCHAR_5.getString( "DATA_TYPE" ), equalTo( "CHARACTER" ) );
  }

  @Test
  public void test_DATA_TYPE_hasRightValue_mdrOptVARBINARY_16() throws SQLException {
    assertThat( mdrOptVARBINARY_16.getString( "DATA_TYPE" ), equalTo( "BINARY VARYING" ) );
  }

  @Ignore( "TODO(DRILL-3368): unignore when BINARY is implemented enough" )
  @Test
  public void test_DATA_TYPE_hasRightValue_mdrOptBINARY_1048576() throws SQLException {
    assertThat( mdrOptBINARY_65536.getString( "DATA_TYPE" ), equalTo( "BINARY VARYING" ) ); // ?? current
    assertThat( mdrOptBINARY_65536.getString( "DATA_TYPE" ), equalTo( "BINARY" ) );  // ?? should be
  }

  @Test
  public void test_DATA_TYPE_hasRightValue_mdrReqDATE() throws SQLException {
    assertThat( mdrReqDATE.getString( "DATA_TYPE" ), equalTo( "DATE" ) );
  }

  @Test
  public void test_DATA_TYPE_hasRightValue_mdrReqTIME() throws SQLException {
    // (TIME defaults to TIME WITHOUT TIME ZONE, which uses "TIME" here.)
    assertThat( mdrReqTIME.getString( "DATA_TYPE" ), equalTo( "TIME" ) );
  }

  @Test
  public void test_DATA_TYPE_hasRightValue_mdrOptTIME_7() throws SQLException {
    // (TIME defaults to TIME WITHOUT TIME ZONE, which uses "TIME" here.)
    assertThat( mdrOptTIME_7.getString( "DATA_TYPE" ), equalTo( "TIME" ) );
  }

  @Test
  public void test_DATA_TYPE_hasRightValue_mdrOptTIMESTAMP() throws SQLException {
    assertThat( mdrOptTIMESTAMP.getString( "DATA_TYPE" ), equalTo( "TIMESTAMP" ) );
  }

  @Test
  public void test_DATA_TYPE_hasRightValue_mdrReqINTERVAL_Y() throws SQLException {
    assertThat( mdrReqINTERVAL_Y.getString( "DATA_TYPE" ), equalTo( "INTERVAL" ) );
  }

  @Test
  public void test_DATA_TYPE_hasRightValue_mdrReqINTERVAL_H_S3() throws SQLException {
    assertThat( mdrReqINTERVAL_3H_S1.getString( "DATA_TYPE" ), equalTo( "INTERVAL" ) );
  }

  @Test
  @Ignore( "TODO(DRILL-3253): unignore when we have all-types test storage plugin" )
  public void test_DATA_TYPE_hasRightValue_tdbARRAY() throws SQLException {
    assertThat( mdrReqARRAY.getString( "DATA_TYPE" ), equalTo( "ARRAY" ) );
  }

  @Test
  @Ignore( "TODO(DRILL-3253): unignore when we have all-types test storage plugin" )
  public void test_DATA_TYPE_hasRightValue_tbdMAP() throws SQLException {
    assertThat( mdrReqMAP.getString( "DATA_TYPE" ), equalTo( "MAP" ) );
  }

  @Test
  @Ignore( "TODO(DRILL-3253): unignore when we have all-types test storage plugin" )
  public void test_DATA_TYPE_hasRightValue_tbdSTRUCT() throws SQLException {
    assertThat( mdrUnkSTRUCT.getString( "DATA_TYPE" ), equalTo( "STRUCT" ) );
  }

  @Test
  @Ignore( "TODO(DRILL-3253): unignore when we have all-types test storage plugin" )
  public void test_DATA_TYPE_hasRightValue_tbdUnion() throws SQLException {
    assertThat( mdrUnkUnion.getString( "DATA_TYPE" ), equalTo( "OTHER" ) );
    fail( "Expected value is not resolved yet." );
  }

  @Test
  public void test_DATA_TYPE_hasSameNameAndLabel() throws SQLException {
    assertThat( rowsMetadata.getColumnName( 8 ), equalTo( "DATA_TYPE" ) );
  }

  @Test
  public void test_DATA_TYPE_hasRightTypeString() throws SQLException {
    assertThat( rowsMetadata.getColumnTypeName( 8 ),
                equalTo( "CHARACTER VARYING" ) );
  }

  @Test
  public void test_DATA_TYPE_hasRightTypeCode() throws SQLException {
    assertThat( rowsMetadata.getColumnType( 8 ), equalTo( Types.VARCHAR ) );
  }

  @Ignore( "until resolved:  any requirement on nullability (DRILL-2420?)" )
  @Test
  public void test_DATA_TYPE_hasRightNullability() throws SQLException {
    assertThat( "ResultSetMetaData.column...Null... nullability code:",
                rowsMetadata.isNullable( 8 ), equalTo( columnNoNulls ) );
  }


  ////////////////////////////////////////////////////////////
  // #9: CHARACTER_MAXIMUM_LENGTH:
  // - SQL:
  // - Drill:
  // - (Meta): INTEGER; Nullable;

  @Test
  public void test_CHARACTER_MAXIMUM_LENGTH_isAtRightPosition() throws SQLException {
    assertThat( rowsMetadata.getColumnLabel( 9 ), equalTo( "CHARACTER_MAXIMUM_LENGTH" ) );
  }

  @Test
  public void test_CHARACTER_MAXIMUM_LENGTH_hasRightValue_mdrOptBOOLEAN() throws SQLException {
    assertThat( getIntOrNull( mdrOptBOOLEAN, "CHARACTER_MAXIMUM_LENGTH" ), nullValue() );
  }

  @Ignore( "TODO(DRILL-2470): unignore when TINYINT is implemented" )
  @Test
  public void test_CHARACTER_MAXIMUM_LENGTH_hasRightValue_mdrReqTINYINT() throws SQLException {
    assertThat( getIntOrNull( mdrReqTINYINT, "CHARACTER_MAXIMUM_LENGTH" ), nullValue() );
  }

  @Ignore( "TODO(DRILL-2470): unignore when SMALLINT is implemented" )
  @Test
  public void test_CHARACTER_MAXIMUM_LENGTH_hasRightValue_mdrOptSMALLINT() throws SQLException {
    assertThat( getIntOrNull( mdrOptSMALLINT, "CHARACTER_MAXIMUM_LENGTH" ), nullValue() );
  }

  @Test
  public void test_CHARACTER_MAXIMUM_LENGTH_hasRightValue_mdrReqINTEGER() throws SQLException {
    assertThat( getIntOrNull( mdrReqINTEGER, "CHARACTER_MAXIMUM_LENGTH" ), nullValue() );
  }

  @Test
  public void test_CHARACTER_MAXIMUM_LENGTH_hasRightValue_mdrOptBIGINT() throws SQLException {
    assertThat( getIntOrNull( mdrOptBIGINT, "CHARACTER_MAXIMUM_LENGTH" ), nullValue() );
  }

  @Ignore( "TODO(DRILL-2683): unignore when REAL is implemented" )
  @Test
  public void test_CHARACTER_MAXIMUM_LENGTH_hasRightValue_mdrOptREAL() throws SQLException {
    assertThat( getIntOrNull( mdrOptREAL, "CHARACTER_MAXIMUM_LENGTH" ), nullValue() );
  }

  @Test
  public void test_CHARACTER_MAXIMUM_LENGTH_hasRightValue_mdrOptFLOAT() throws SQLException {
    assertThat( getIntOrNull( mdrOptFLOAT, "CHARACTER_MAXIMUM_LENGTH" ), nullValue() );
  }

  @Test
  public void test_CHARACTER_MAXIMUM_LENGTH_hasRightValue_mdrReqDOUBLE() throws SQLException {
    assertThat( getIntOrNull( mdrReqDOUBLE, "CHARACTER_MAXIMUM_LENGTH" ), nullValue() );
  }

  @Test
  public void test_CHARACTER_MAXIMUM_LENGTH_hasRightValue_mdrReqDECIMAL_5_3() throws SQLException {
    assertThat( getIntOrNull( mdrReqDECIMAL_5_3, "CHARACTER_MAXIMUM_LENGTH" ), nullValue() );
  }

  @Test
  public void test_CHARACTER_MAXIMUM_LENGTH_hasRightValue_mdrReqVARCHAR_10() throws SQLException {
    assertThat( getIntOrNull( mdrReqVARCHAR_10, "CHARACTER_MAXIMUM_LENGTH" ), equalTo( 10 ) );
  }

  @Test
  public void test_CHARACTER_MAXIMUM_LENGTH_hasRightValue_mdrOptVARCHAR() throws SQLException {
    assertThat(getIntOrNull(mdrOptVARCHAR, "CHARACTER_MAXIMUM_LENGTH"), equalTo(org.apache.drill.common.types.Types.MAX_VARCHAR_LENGTH));
  }

  @Test
  public void test_CHARACTER_MAXIMUM_LENGTH_hasRightValue_mdrReqCHAR_5() throws SQLException {
    assertThat( getIntOrNull( mdrReqCHAR_5, "CHARACTER_MAXIMUM_LENGTH" ), equalTo( 5 ) );
  }

  @Test
  public void test_CHARACTER_MAXIMUM_LENGTH_hasRightValue_mdrOptVARBINARY_16() throws SQLException {
    assertThat( getIntOrNull( mdrOptVARBINARY_16, "CHARACTER_MAXIMUM_LENGTH" ), equalTo( 16 ) );
  }

  @Test
  public void test_CHARACTER_MAXIMUM_LENGTH_hasRightValue_mdrOptBINARY_1048576() throws SQLException {
    assertThat( getIntOrNull(mdrOptBINARY_65536, "CHARACTER_MAXIMUM_LENGTH" ), equalTo( 65536 ) );
  }

  @Test
  public void test_CHARACTER_MAXIMUM_LENGTH_hasRightValue_mdrReqDATE() throws SQLException {
    assertThat( getIntOrNull( mdrReqDATE, "CHARACTER_MAXIMUM_LENGTH" ), nullValue() );
  }

  @Test
  public void test_CHARACTER_MAXIMUM_LENGTH_hasRightValue_mdrReqTIME() throws SQLException {
    assertThat( getIntOrNull( mdrReqTIME, "CHARACTER_MAXIMUM_LENGTH" ), nullValue() );
  }

  @Test
  public void test_CHARACTER_MAXIMUM_LENGTH_hasRightValue_mdrOptTIME_7() throws SQLException {
    assertThat( getIntOrNull( mdrOptTIME_7, "CHARACTER_MAXIMUM_LENGTH" ), nullValue() );
  }

  @Test
  public void test_CHARACTER_MAXIMUM_LENGTH_hasRightValue_mdrOptTIMESTAMP() throws SQLException {
    assertThat( getIntOrNull( mdrOptTIMESTAMP, "CHARACTER_MAXIMUM_LENGTH" ), nullValue() );
  }

  @Test
  public void test_CHARACTER_MAXIMUM_LENGTH_hasRightValue_mdrReqINTERVAL_Y() throws SQLException {
    assertThat( getIntOrNull( mdrReqINTERVAL_Y, "CHARACTER_MAXIMUM_LENGTH" ), nullValue() );
  }

  @Test
  public void test_CHARACTER_MAXIMUM_LENGTH_hasRightValue_mdrReqINTERVAL_H_S3() throws SQLException {
    assertThat( getIntOrNull( mdrReqINTERVAL_3H_S1, "CHARACTER_MAXIMUM_LENGTH" ), nullValue() );
  }

  @Test
  @Ignore( "TODO(DRILL-3253): unignore when we have all-types test storage plugin" )
  public void test_CHARACTER_MAXIMUM_LENGTH_hasRightValue_tdbARRAY() throws SQLException {
    assertThat( getIntOrNull( mdrReqARRAY, "CHARACTER_MAXIMUM_LENGTH" ), nullValue() );
  }

  @Test
  @Ignore( "TODO(DRILL-3253): unignore when we have all-types test storage plugin" )
  public void test_CHARACTER_MAXIMUM_LENGTH_hasRightValue_tbdMAP() throws SQLException {
    assertThat( getIntOrNull( mdrReqMAP, "CHARACTER_MAXIMUM_LENGTH" ), nullValue() );
  }

  @Test
  @Ignore( "TODO(DRILL-3253): unignore when we have all-types test storage plugin" )
  public void test_CHARACTER_MAXIMUM_LENGTH_hasRightValue_tbdSTRUCT() throws SQLException {
    assertThat( getIntOrNull( mdrUnkSTRUCT, "CHARACTER_MAXIMUM_LENGTH"), nullValue() );
  }

  @Test
  @Ignore( "TODO(DRILL-3253): unignore when we have all-types test storage plugin" )
  public void test_CHARACTER_MAXIMUM_LENGTH_hasRightValue_tbdUnion() throws SQLException {
    assertThat( getIntOrNull( mdrUnkUnion, "CHARACTER_MAXIMUM_LENGTH"), nullValue() );
  }

  @Test
  public void test_CHARACTER_MAXIMUM_LENGTH_hasSameNameAndLabel() throws SQLException {
    assertThat( rowsMetadata.getColumnName( 9 ), equalTo( "CHARACTER_MAXIMUM_LENGTH" ) );
  }

  @Test
  public void test_CHARACTER_MAXIMUM_LENGTH_hasRightTypeString() throws SQLException {
    assertThat( rowsMetadata.getColumnTypeName( 9 ), equalTo( "INTEGER" ) );
  }

  @Test
  public void test_CHARACTER_MAXIMUM_LENGTH_hasRightTypeCode() throws SQLException {
    assertThat( rowsMetadata.getColumnType( 9 ), equalTo( Types.INTEGER ) );
  }

  @Test
  public void test_CHARACTER_MAXIMUM_LENGTH_hasRightNullability() throws SQLException {
    assertThat( "ResultSetMetaData.column...Null... nullability code:",
                rowsMetadata.isNullable( 9 ), equalTo( columnNullable ) );
  }


  ////////////////////////////////////////////////////////////
  // #10: CHARACTER_OCTET_LENGTH:
  // - SQL:
  // - Drill:
  // - (Meta): INTEGER; Nullable;

  @Test
  public void test_CHARACTER_OCTET_LENGTH_isAtRightPosition() throws SQLException {
    assertThat( rowsMetadata.getColumnLabel( 10 ), equalTo( "CHARACTER_OCTET_LENGTH" ) );
  }

  @Test
  public void test_CHARACTER_OCTET_LENGTH_hasRightValue_mdrOptBOOLEAN() throws SQLException {
    assertThat( getIntOrNull( mdrOptBOOLEAN, "CHARACTER_OCTET_LENGTH" ), nullValue() );
  }

  @Ignore( "TODO(DRILL-2470): unignore when TINYINT is implemented" )
  @Test
  public void test_CHARACTER_OCTET_LENGTH_hasRightValue_mdrReqTINYINT() throws SQLException {
    assertThat( getIntOrNull( mdrReqTINYINT, "CHARACTER_OCTET_LENGTH" ), nullValue() );
  }

  @Ignore( "TODO(DRILL-2683): unignore when REAL is implemented" )
  @Test
  public void test_CHARACTER_OCTET_LENGTH_hasRightValue_mdrOptBIGINT() throws SQLException {
    assertThat( getIntOrNull( mdrOptREAL, "CHARACTER_OCTET_LENGTH" ), nullValue() );
  }

  @Ignore( "TODO(DRILL-2470): unignore when SMALLINT is implemented" )
  @Test
  public void test_CHARACTER_OCTET_LENGTH_hasRightValue_mdrOptSMALLINT() throws SQLException {
    assertThat( getIntOrNull( mdrOptSMALLINT, "CHARACTER_OCTET_LENGTH" ), nullValue() );
  }

  @Test
  public void test_CHARACTER_OCTET_LENGTH_hasRightValue_mdrReqINTEGER() throws SQLException {
    assertThat( getIntOrNull( mdrReqINTEGER, "CHARACTER_OCTET_LENGTH" ), nullValue() );
  }

  @Ignore( "TODO(DRILL-2683): unignore when REAL is implemented" )
  @Test
  public void test_CHARACTER_OCTET_LENGTH_hasRightValue_mdrOptREAL() throws SQLException {
    assertThat( getIntOrNull( mdrOptREAL, "CHARACTER_OCTET_LENGTH" ), nullValue() );
  }

  @Test
  public void test_CHARACTER_OCTET_LENGTH_hasRightValue_mdrOptFLOAT() throws SQLException {
    assertThat( getIntOrNull( mdrOptFLOAT, "CHARACTER_OCTET_LENGTH" ), nullValue() );
  }

  @Test
  public void test_CHARACTER_OCTET_LENGTH_hasRightValue_mdrReqDOUBLE() throws SQLException {
    assertThat( getIntOrNull( mdrReqDOUBLE, "CHARACTER_OCTET_LENGTH" ), nullValue() );
  }

  @Test
  public void test_CHARACTER_OCTET_LENGTH_hasRightValue_mdrReqDECIMAL_5_3() throws SQLException {
    assertThat( getIntOrNull( mdrReqDECIMAL_5_3, "CHARACTER_OCTET_LENGTH" ), nullValue() );
  }

  @Test
  public void test_CHARACTER_OCTET_LENGTH_hasRightValue_mdrReqVARCHAR_10() throws SQLException {
    assertThat( getIntOrNull( mdrReqVARCHAR_10, "CHARACTER_OCTET_LENGTH" ),
                equalTo( 10   /* chars. */
                         * 4  /* max. UTF-8 bytes per char. */ ) );
  }

  @Test
  public void test_CHARACTER_OCTET_LENGTH_hasRightValue_mdrOptVARCHAR() throws SQLException {
    assertThat( getIntOrNull( mdrOptVARCHAR, "CHARACTER_OCTET_LENGTH" ),
        equalTo(org.apache.drill.common.types.Types.MAX_VARCHAR_LENGTH /* chars. (default of 65535) */
                         * 4  /* max. UTF-8 bytes per char. */ ) );
  }

  @Test
  public void test_CHARACTER_OCTET_LENGTH_hasRightValue_mdrReqCHAR_5() throws SQLException {
    assertThat( getIntOrNull( mdrReqCHAR_5, "CHARACTER_OCTET_LENGTH" ),
                equalTo( 5    /* chars. */
                         * 4  /* max. UTF-8 bytes per char. */ ) );
  }

  @Test
  public void test_CHARACTER_OCTET_LENGTH_hasRightValue_mdrOptVARBINARY_16() throws SQLException {
    assertThat( getIntOrNull( mdrOptVARBINARY_16, "CHARACTER_OCTET_LENGTH" ), equalTo( 16 ) );
  }

  @Test
  public void test_CHARACTER_OCTET_LENGTH_hasRightValue_mdrOptBINARY_1048576() throws SQLException {
    assertThat( getIntOrNull(mdrOptBINARY_65536, "CHARACTER_OCTET_LENGTH" ), equalTo( 65536 ));
  }

  @Test
  public void test_CHARACTER_OCTET_LENGTH_hasRightValue_mdrReqDATE() throws SQLException {
    assertThat( getIntOrNull( mdrReqDATE, "CHARACTER_OCTET_LENGTH" ), nullValue() );
  }

  @Test
  public void test_CHARACTER_OCTET_LENGTH_hasRightValue_mdrReqTIME() throws SQLException {
    assertThat( getIntOrNull( mdrReqTIME, "CHARACTER_OCTET_LENGTH" ), nullValue() );
  }

  @Test
  public void test_CHARACTER_OCTET_LENGTH_hasRightValue_mdrOptTIME_7() throws SQLException {
    assertThat( getIntOrNull( mdrOptTIME_7, "CHARACTER_OCTET_LENGTH" ), nullValue() );
  }

  @Test
  public void test_CHARACTER_OCTET_LENGTH_hasRightValue_mdrOptTIMESTAMP() throws SQLException {
    assertThat( getIntOrNull( mdrOptTIMESTAMP, "CHARACTER_OCTET_LENGTH" ), nullValue() );
  }

  @Test
  public void test_CHARACTER_OCTET_LENGTH_hasRightValue_mdrReqINTERVAL_Y() throws SQLException {
    assertThat( getIntOrNull( mdrReqINTERVAL_Y, "CHARACTER_OCTET_LENGTH" ), nullValue() );
  }

  @Test
  public void test_CHARACTER_OCTET_LENGTH_hasRightValue_mdrReqINTERVAL_H_S3() throws SQLException {
    assertThat( getIntOrNull( mdrReqINTERVAL_3H_S1, "CHARACTER_OCTET_LENGTH" ), nullValue() );
  }

  @Test
  @Ignore( "TODO(DRILL-3253): unignore when we have all-types test storage plugin" )
  public void test_CHARACTER_OCTET_LENGTH_hasRightValue_tdbARRAY() throws SQLException {
    assertThat( getIntOrNull( mdrReqARRAY, "CHARACTER_OCTET_LENGTH" ), nullValue() );
  }

  @Test
  @Ignore( "TODO(DRILL-3253): unignore when we have all-types test storage plugin" )
  public void test_CHARACTER_OCTET_LENGTH_hasRightValue_tbdMAP() throws SQLException {
    assertThat( getIntOrNull( mdrReqMAP, "CHARACTER_OCTET_LENGTH" ), nullValue() );
  }

  @Test
  @Ignore( "TODO(DRILL-3253): unignore when we have all-types test storage plugin" )
  public void test_CHARACTER_OCTET_LENGTH_hasRightValue_tbdSTRUCT() throws SQLException {
    assertThat( getIntOrNull( mdrUnkSTRUCT, "CHARACTER_OCTET_LENGTH" ), nullValue() );
  }

  @Test
  @Ignore( "TODO(DRILL-3253): unignore when we have all-types test storage plugin" )
  public void test_CHARACTER_OCTET_LENGTH_hasRightValue_tbdUnion() throws SQLException {
    assertThat( getIntOrNull( mdrUnkUnion, "CHARACTER_OCTET_LENGTH"), nullValue() );
  }

  @Test
  public void test_CHARACTER_OCTET_LENGTH_hasSameNameAndLabel() throws SQLException {
    assertThat( rowsMetadata.getColumnName( 10 ), equalTo( "CHARACTER_OCTET_LENGTH" ) );
  }

  @Test
  public void test_CHARACTER_OCTET_LENGTH_hasRightTypeString() throws SQLException {
    assertThat( rowsMetadata.getColumnTypeName( 10 ), equalTo( "INTEGER" ) );
  }

  @Test
  public void test_CHARACTER_OCTET_LENGTH_hasRightTypeCode() throws SQLException {
    assertThat( rowsMetadata.getColumnType( 10 ), equalTo( Types.INTEGER ) );
  }

  @Test
  public void test_CHARACTER_OCTET_LENGTH_hasRightNullability() throws SQLException {
    assertThat( "ResultSetMetaData.column...Null... nullability code:",
                rowsMetadata.isNullable( 10 ), equalTo( columnNullable ) );
  }


  ////////////////////////////////////////////////////////////
  // #11: NUMERIC_PRECISION:
  // - SQL:
  // - Drill:
  // - (Meta): INTEGER; Nullable;

  @Test
  public void test_NUMERIC_PRECISION_isAtRightPosition() throws SQLException {
    assertThat( rowsMetadata.getColumnLabel( 11 ), equalTo( "NUMERIC_PRECISION" ) );
  }

  @Test
  public void test_NUMERIC_PRECISION_hasRightValue_mdrOptBOOLEAN() throws SQLException {
    assertThat( getIntOrNull( mdrOptBOOLEAN, "NUMERIC_PRECISION" ), nullValue() );
  }

  @Ignore( "TODO(DRILL-2470): unignore when TINYINT is implemented" )
  @Test
  public void test_NUMERIC_PRECISION_hasRightValue_mdrReqTINYINT() throws SQLException {
    assertThat( getIntOrNull( mdrReqTINYINT, "NUMERIC_PRECISION" ), equalTo( 8 ) );
  }

  @Ignore( "TODO(DRILL-2470): unignore when SMALLINT is implemented" )
  @Test
  public void test_NUMERIC_PRECISION_hasRightValue_mdrOptSMALLINT() throws SQLException {
    assertThat( getIntOrNull( mdrOptSMALLINT, "NUMERIC_PRECISION" ), equalTo( 16 ) );
  }

  @Test
  public void test_NUMERIC_PRECISION_hasRightValue_mdrReqINTEGER() throws SQLException {
    assertThat( getIntOrNull( mdrReqINTEGER, "NUMERIC_PRECISION" ), equalTo( 32 ) );
  }

  @Test
  public void test_NUMERIC_PRECISION_hasRightValue_mdrOptBIGINT() throws SQLException {
    assertThat( getIntOrNull( mdrOptBIGINT, "NUMERIC_PRECISION" ), equalTo( 64 ) );
  }

  @Ignore( "TODO(DRILL-2683): unignore when REAL is implemented" )
  @Test
  public void test_NUMERIC_PRECISION_hasRightValue_mdrOptREAL() throws SQLException {
    assertThat( getIntOrNull( mdrOptREAL, "NUMERIC_PRECISION" ), equalTo( 24 ) );
  }

  @Test
  public void test_NUMERIC_PRECISION_hasRightValue_mdrOptFLOAT() throws SQLException {
    assertThat( getIntOrNull( mdrOptFLOAT, "NUMERIC_PRECISION" ), equalTo( 24 ) );
  }

  @Test
  public void test_NUMERIC_PRECISION_hasRightValue_mdrReqDOUBLE() throws SQLException {
    assertThat( getIntOrNull( mdrReqDOUBLE, "NUMERIC_PRECISION" ), equalTo( 53 ) );
  }

  @Test
  public void test_NUMERIC_PRECISION_hasRightValue_mdrReqDECIMAL_5_3() throws SQLException {
    assertThat( getIntOrNull( mdrReqDECIMAL_5_3, "NUMERIC_PRECISION" ), equalTo( 5 ) );
  }

  @Test
  public void test_NUMERIC_PRECISION_hasRightValue_mdrReqVARCHAR_10() throws SQLException {
    assertThat( getIntOrNull( mdrReqVARCHAR_10, "NUMERIC_PRECISION" ), nullValue() );
  }

  @Test
  public void test_NUMERIC_PRECISION_hasRightValue_mdrOptVARCHAR() throws SQLException {
    assertThat( getIntOrNull( mdrOptVARCHAR, "NUMERIC_PRECISION" ), nullValue() );
  }

  @Test
  public void test_NUMERIC_PRECISION_hasRightValue_mdrReqCHAR_5() throws SQLException {
    assertThat( getIntOrNull( mdrReqCHAR_5, "NUMERIC_PRECISION" ), nullValue() );
  }

  @Test
  public void test_NUMERIC_PRECISION_hasRightValue_mdrOptVARBINARY_16() throws SQLException {
    assertThat( getIntOrNull( mdrOptVARBINARY_16, "NUMERIC_PRECISION" ), nullValue() );
  }

  @Test
  public void test_NUMERIC_PRECISION_hasRightValue_mdrOptBINARY_1048576() throws SQLException {
    assertThat( getIntOrNull(mdrOptBINARY_65536, "NUMERIC_PRECISION" ), nullValue() );
  }

  @Test
  public void test_NUMERIC_PRECISION_hasRightValue_mdrReqDATE() throws SQLException {
    assertThat( getIntOrNull( mdrReqDATE, "NUMERIC_PRECISION" ), nullValue() );
  }

  @Test
  public void test_NUMERIC_PRECISION_hasRightValue_mdrReqTIME() throws SQLException {
    assertThat( getIntOrNull( mdrReqTIME, "NUMERIC_PRECISION" ), nullValue() );
  }

  @Test
  public void test_NUMERIC_PRECISION_hasRightValue_mdrOptTIME_7() throws SQLException {
    assertThat( getIntOrNull( mdrOptTIME_7, "NUMERIC_PRECISION" ), nullValue() );
  }

  @Test
  public void test_NUMERIC_PRECISION_hasRightValue_mdrOptTIMESTAMP() throws SQLException {
    assertThat( getIntOrNull( mdrOptTIMESTAMP, "NUMERIC_PRECISION" ), nullValue() );
  }

  @Test
  public void test_NUMERIC_PRECISION_hasRightValue_mdrReqINTERVAL_Y() throws SQLException {
    assertThat( getIntOrNull( mdrReqINTERVAL_Y, "NUMERIC_PRECISION" ), nullValue() );
  }

  @Test
  public void test_NUMERIC_PRECISION_hasRightValue_mdrReqINTERVAL_H_S3() throws SQLException {
    assertThat( getIntOrNull( mdrReqINTERVAL_3H_S1, "NUMERIC_PRECISION" ), nullValue() );
  }

  @Test
  @Ignore( "TODO(DRILL-3253): unignore when we have all-types test storage plugin" )
  public void test_NUMERIC_PRECISION_hasRightValue_tdbARRAY() throws SQLException {
    assertThat( getIntOrNull( mdrReqARRAY, "NUMERIC_PRECISION" ), nullValue() );
  }

  @Test
  @Ignore( "TODO(DRILL-3253): unignore when we have all-types test storage plugin" )
  public void test_NUMERIC_PRECISION_hasRightValue_tbdMAP() throws SQLException {
    assertThat( getIntOrNull( mdrReqMAP, "NUMERIC_PRECISION" ), nullValue() );
  }

  @Test
  @Ignore( "TODO(DRILL-3253): unignore when we have all-types test storage plugin" )
  public void test_NUMERIC_PRECISION_hasRightValue_tbdSTRUCT() throws SQLException {
    assertThat( getIntOrNull( mdrUnkSTRUCT, "NUMERIC_PRECISION" ), nullValue() );
  }

  @Test
  @Ignore( "TODO(DRILL-3253): unignore when we have all-types test storage plugin" )
  public void test_NUMERIC_PRECISION_hasRightValue_tbdUnion() throws SQLException {
    assertThat( getIntOrNull( mdrUnkUnion, "NUMERIC_PRECISION" ), nullValue() );
  }

  @Test
  public void test_NUMERIC_PRECISION_hasSameNameAndLabel() throws SQLException {
    assertThat( rowsMetadata.getColumnName( 11 ), equalTo( "NUMERIC_PRECISION" ) );
  }

  @Test
  public void test_NUMERIC_PRECISION_hasRightTypeString() throws SQLException {
    assertThat( rowsMetadata.getColumnTypeName( 11 ), equalTo( "INTEGER" ) );
  }

  @Test
  public void test_NUMERIC_PRECISION_hasRightTypeCode() throws SQLException {
    assertThat( rowsMetadata.getColumnType( 11 ), equalTo( Types.INTEGER ) );
  }

  @Test
  public void test_NUMERIC_PRECISION_hasRightNullability() throws SQLException {
    assertThat( "ResultSetMetaData.column...Null... nullability code:",
                rowsMetadata.isNullable( 11 ), equalTo( columnNullable ) );
  }


  ////////////////////////////////////////////////////////////
  // #12: NUMERIC_PRECISION_RADIX:
  // - SQL:
  // - Drill:
  // - (Meta): INTEGER; Nullable;

  @Test
  public void test_NUMERIC_PRECISION_RADIX_isAtRightPosition() throws SQLException {
    assertThat( rowsMetadata.getColumnLabel( 12 ), equalTo( "NUMERIC_PRECISION_RADIX" ) );
  }

  @Test
  public void test_NUMERIC_PRECISION_RADIX_hasRightValue_mdrOptBOOLEAN() throws SQLException {
    assertThat( getIntOrNull( mdrOptBOOLEAN, "NUMERIC_PRECISION_RADIX" ), nullValue() );
  }

  @Ignore( "TODO(DRILL-2470): unignore when TINYINT is implemented" )
  @Test
  public void test_NUMERIC_PRECISION_RADIX_hasRightValue_mdrReqTINYINT() throws SQLException {
    assertThat( getIntOrNull( mdrReqTINYINT, "NUMERIC_PRECISION_RADIX" ), equalTo( 2 ) );
  }

  @Ignore( "TODO(DRILL-2470): unignore when SMALLINT is implemented" )
  @Test
  public void test_NUMERIC_PRECISION_RADIX_hasRightValue_mdrOptSMALLINT() throws SQLException {
    assertThat( getIntOrNull( mdrOptSMALLINT, "NUMERIC_PRECISION_RADIX" ), equalTo( 2 ) );
  }

  @Test
  public void test_NUMERIC_PRECISION_RADIX_hasRightValue_mdrReqINTEGER() throws SQLException {
    assertThat( getIntOrNull( mdrReqINTEGER, "NUMERIC_PRECISION_RADIX" ), equalTo( 2 ) );
  }

  @Test
  public void test_NUMERIC_PRECISION_RADIX_hasRightValue_mdrOptBIGINT() throws SQLException {
    assertThat( getIntOrNull( mdrOptBIGINT, "NUMERIC_PRECISION_RADIX" ), equalTo( 2 ) );
  }

  @Ignore( "TODO(DRILL-2683): unignore when REAL is implemented" )
  @Test
  public void test_NUMERIC_PRECISION_RADIX_hasRightValue_mdrOptREAL() throws SQLException {
    assertThat( getIntOrNull( mdrOptREAL, "NUMERIC_PRECISION_RADIX" ), equalTo( 2 ) );
  }

  @Test
  public void test_NUMERIC_PRECISION_RADIX_hasRightValue_mdrOptFLOAT() throws SQLException {
    assertThat( getIntOrNull( mdrOptFLOAT, "NUMERIC_PRECISION_RADIX" ), equalTo( 2 ) );
  }

  @Test
  public void test_NUMERIC_PRECISION_RADIX_hasRightValue_mdrReqDOUBLE() throws SQLException {
    assertThat( getIntOrNull( mdrReqDOUBLE, "NUMERIC_PRECISION_RADIX" ), equalTo( 2 ) );
  }

  @Test
  public void test_NUMERIC_PRECISION_RADIX_hasRightValue_mdrReqDECIMAL_5_3() throws SQLException {
    assertThat( getIntOrNull( mdrReqDECIMAL_5_3, "NUMERIC_PRECISION_RADIX" ), equalTo( 10 ) );
  }

  @Test
  public void test_NUMERIC_PRECISION_RADIX_hasRightValue_mdrReqVARCHAR_10() throws SQLException {
    assertThat( getIntOrNull( mdrReqVARCHAR_10, "NUMERIC_PRECISION_RADIX" ), nullValue() );
  }

  @Test
  public void test_NUMERIC_PRECISION_RADIX_hasRightValue_mdrOptVARCHAR() throws SQLException {
    assertThat( getIntOrNull( mdrOptVARCHAR, "NUMERIC_PRECISION_RADIX" ), nullValue() );
  }

  @Test
  public void test_NUMERIC_PRECISION_RADIX_hasRightValue_mdrReqCHAR_5() throws SQLException {
    assertThat( getIntOrNull( mdrReqCHAR_5, "NUMERIC_PRECISION_RADIX" ), nullValue() );
  }

  @Test
  public void test_NUMERIC_PRECISION_RADIX_hasRightValue_mdrOptVARBINARY_16() throws SQLException {
    assertThat( getIntOrNull( mdrOptVARBINARY_16, "NUMERIC_PRECISION_RADIX" ), nullValue() );
  }

  @Test
  public void test_NUMERIC_PRECISION_RADIX_hasRightValue_mdrOptBINARY_1048576() throws SQLException {
    assertThat( getIntOrNull(mdrOptBINARY_65536, "NUMERIC_PRECISION_RADIX" ), nullValue() );
  }

  @Test
  public void test_NUMERIC_PRECISION_RADIX_hasRightValue_mdrReqDATE() throws SQLException {
    assertThat( getIntOrNull( mdrReqDATE, "NUMERIC_PRECISION_RADIX" ), nullValue() );
  }

  @Test
  public void test_NUMERIC_PRECISION_RADIX_hasRightValue_mdrReqTIME() throws SQLException {
    assertThat( getIntOrNull( mdrReqTIME, "NUMERIC_PRECISION_RADIX" ), nullValue() );
  }

  @Test
  public void test_NUMERIC_PRECISION_RADIX_hasRightValue_mdrOptTIME_7() throws SQLException {
    assertThat( getIntOrNull( mdrOptTIME_7, "NUMERIC_PRECISION_RADIX" ), nullValue() );
  }

  @Test
  public void test_NUMERIC_PRECISION_RADIX_hasRightValue_mdrOptTIMESTAMP() throws SQLException {
    assertThat( getIntOrNull( mdrOptTIMESTAMP, "NUMERIC_PRECISION_RADIX" ), nullValue() );
  }

  @Test
  public void test_NUMERIC_PRECISION_RADIX_hasRightValue_mdrReqINTERVAL_Y() throws SQLException {
    assertThat( getIntOrNull( mdrReqINTERVAL_Y, "NUMERIC_PRECISION_RADIX" ), nullValue() );
  }

  @Test
  public void test_NUMERIC_PRECISION_RADIX_hasRightValue_mdrReqINTERVAL_H_S3() throws SQLException {
    assertThat( getIntOrNull( mdrReqINTERVAL_3H_S1, "NUMERIC_PRECISION_RADIX" ), nullValue() );
  }

  @Test
  @Ignore( "TODO(DRILL-3253): unignore when we have all-types test storage plugin" )
  public void test_NUMERIC_PRECISION_RADIX_hasRightValue_tdbARRAY() throws SQLException {
    assertThat( getIntOrNull( mdrReqARRAY, "NUMERIC_PRECISION_RADIX" ), nullValue() );
  }

  @Test
  @Ignore( "TODO(DRILL-3253): unignore when we have all-types test storage plugin" )
  public void test_NUMERIC_PRECISION_RADIX_hasRightValue_tbdMAP() throws SQLException {
    assertThat( getIntOrNull( mdrReqMAP, "NUMERIC_PRECISION_RADIX" ), nullValue() );
  }

  @Test
  @Ignore( "TODO(DRILL-3253): unignore when we have all-types test storage plugin" )
  public void test_NUMERIC_PRECISION_RADIX_hasRightValue_tbdSTRUCT() throws SQLException {
    assertThat( getIntOrNull( mdrUnkSTRUCT, "NUMERIC_PRECISION_RADIX" ), nullValue() );
  }

  @Test
  @Ignore( "TODO(DRILL-3253): unignore when we have all-types test storage plugin" )
  public void test_NUMERIC_PRECISION_RADIX_hasRightValue_tbdUnion() throws SQLException {
    assertThat( getIntOrNull( mdrUnkUnion, "NUMERIC_PRECISION_RADIX" ), nullValue() );
  }

  @Test
  public void test_NUMERIC_PRECISION_RADIX_hasSameNameAndLabel() throws SQLException {
    assertThat( rowsMetadata.getColumnName( 12 ), equalTo( "NUMERIC_PRECISION_RADIX" ) );
  }

  @Test
  public void test_NUMERIC_PRECISION_RADIX_hasRightTypeString() throws SQLException {
    assertThat( rowsMetadata.getColumnTypeName( 12 ), equalTo( "INTEGER" ) );
  }

  @Test
  public void test_NUMERIC_PRECISION_RADIX_hasRightTypeCode() throws SQLException {
    assertThat( rowsMetadata.getColumnType( 12 ), equalTo( Types.INTEGER ) );
  }

  @Test
  public void test_NUMERIC_PRECISION_RADIX_hasRightNullability() throws SQLException {
    assertThat( "ResultSetMetaData.column...Null... nullability code:",
                rowsMetadata.isNullable( 12 ), equalTo( columnNullable ) );
  }


  ////////////////////////////////////////////////////////////
  // #13: NUMERIC_SCALE:
  // - SQL:
  // - Drill:
  // - (Meta):  INTEGER; Nullable;

  @Test
  public void test_NUMERIC_SCALE_isAtRightPosition() throws SQLException {
    assertThat( rowsMetadata.getColumnLabel( 13 ), equalTo( "NUMERIC_SCALE" ) );
  }

  @Test
  public void test_NUMERIC_SCALE_hasRightValue_mdrOptBOOLEAN() throws SQLException {
    assertThat( getIntOrNull( mdrOptBOOLEAN, "NUMERIC_SCALE" ), nullValue() );
  }

  @Ignore( "TODO(DRILL-2470): unignore when TINYINT is implemented" )
  @Test
  public void test_NUMERIC_SCALE_hasRightValue_mdrReqTINYINT() throws SQLException {
    assertThat( getIntOrNull( mdrReqTINYINT, "NUMERIC_SCALE" ), equalTo( 0 ) );
  }

  @Ignore( "TODO(DRILL-2470): unignore when SMALLINT is implemented" )
  @Test
  public void test_NUMERIC_SCALE_hasRightValue_mdrOptSMALLINT() throws SQLException {
    assertThat( getIntOrNull( mdrOptSMALLINT, "NUMERIC_SCALE" ), equalTo( 0 ) );
  }

  @Test
  public void test_NUMERIC_SCALE_hasRightValue_mdrReqINTEGER() throws SQLException {
    assertThat( getIntOrNull( mdrReqINTEGER, "NUMERIC_SCALE" ), equalTo( 0 ) );
  }

  @Test
  public void test_NUMERIC_SCALE_hasRightValue_mdrOptBIGINT() throws SQLException {
    assertThat( getIntOrNull( mdrOptBIGINT, "NUMERIC_SCALE" ), equalTo( 0 ) );
  }

  @Ignore( "TODO(DRILL-2683): unignore when REAL is implemented" )
  @Test
  public void test_NUMERIC_SCALE_hasRightValue_mdrOptREAL() throws SQLException {
    assertThat( getIntOrNull( mdrOptREAL, "NUMERIC_SCALE" ), nullValue() );
  }

  @Test
  public void test_NUMERIC_SCALE_hasRightValue_mdrOptFLOAT() throws SQLException {
    assertThat( getIntOrNull( mdrOptFLOAT, "NUMERIC_SCALE" ), nullValue() );
  }

  @Test
  public void test_NUMERIC_SCALE_hasRightValue_mdrReqDOUBLE() throws SQLException {
    assertThat( getIntOrNull( mdrReqDOUBLE, "NUMERIC_SCALE" ), nullValue() );
  }

  @Test
  public void test_NUMERIC_SCALE_hasRightValue_mdrReqDECIMAL_5_3() throws SQLException {
    assertThat( getIntOrNull( mdrReqDECIMAL_5_3, "NUMERIC_SCALE" ), equalTo( 3 ) );
  }

  @Test
  public void test_NUMERIC_SCALE_hasRightValue_mdrReqVARCHAR_10() throws SQLException {
    assertThat( getIntOrNull( mdrReqVARCHAR_10, "NUMERIC_SCALE" ), nullValue() );
  }

  @Test
  public void test_NUMERIC_SCALE_hasRightValue_mdrOptVARCHAR() throws SQLException {
    assertThat( getIntOrNull( mdrOptVARCHAR, "NUMERIC_SCALE" ), nullValue() );
  }

  @Test
  public void test_NUMERIC_SCALE_hasRightValue_mdrReqCHAR_5() throws SQLException {
    assertThat( getIntOrNull( mdrReqCHAR_5, "NUMERIC_SCALE" ), nullValue() );
  }

  @Test
  public void test_NUMERIC_SCALE_hasRightValue_mdrOptVARBINARY_16() throws SQLException {
    assertThat( getIntOrNull( mdrOptVARBINARY_16, "NUMERIC_SCALE" ), nullValue() );
  }

  @Test
  public void test_NUMERIC_SCALE_hasRightValue_mdrOptBINARY_1048576() throws SQLException {
    assertThat( getIntOrNull(mdrOptBINARY_65536, "NUMERIC_SCALE" ), nullValue() );
  }

  @Test
  public void test_NUMERIC_SCALE_hasRightValue_mdrReqDATE() throws SQLException {
    assertThat( getIntOrNull( mdrReqDATE, "NUMERIC_SCALE" ), nullValue() );
  }

  @Test
  public void test_NUMERIC_SCALE_hasRightValue_mdrReqTIME() throws SQLException {
    assertThat( getIntOrNull( mdrReqTIME, "NUMERIC_SCALE" ), nullValue() );
  }

  @Test
  public void test_NUMERIC_SCALE_hasRightValue_mdrOptTIME_7() throws SQLException {
    assertThat( getIntOrNull( mdrOptTIME_7, "NUMERIC_SCALE" ), nullValue() );
  }

  @Test
  public void test_NUMERIC_SCALE_hasRightValue_mdrOptTIMESTAMP() throws SQLException {
    assertThat( getIntOrNull( mdrOptTIMESTAMP, "NUMERIC_SCALE" ), nullValue() );
  }

  @Test
  public void test_NUMERIC_SCALE_hasRightValue_mdrReqINTERVAL_Y() throws SQLException {
    assertThat( getIntOrNull( mdrReqINTERVAL_Y, "NUMERIC_SCALE" ), nullValue() );
  }

  @Test
  public void test_NUMERIC_SCALE_hasRightValue_mdrReqINTERVAL_H_S3() throws SQLException {
    assertThat( getIntOrNull( mdrReqINTERVAL_3H_S1, "NUMERIC_SCALE" ), nullValue() );
  }

  @Test
  @Ignore( "TODO(DRILL-3253): unignore when we have all-types test storage plugin" )
  public void test_NUMERIC_SCALE_hasRightValue_tdbARRAY() throws SQLException {
    assertThat( getIntOrNull( mdrReqARRAY, "NUMERIC_SCALE" ), nullValue() );
  }

  @Test
  @Ignore( "TODO(DRILL-3253): unignore when we have all-types test storage plugin" )
  public void test_NUMERIC_SCALE_hasRightValue_tbdMAP() throws SQLException {
    assertThat( getIntOrNull( mdrReqMAP, "NUMERIC_SCALE" ), nullValue() );
  }

  @Test
  @Ignore( "TODO(DRILL-3253): unignore when we have all-types test storage plugin" )
  public void test_NUMERIC_SCALE_hasRightValue_tbdSTRUCT() throws SQLException {
    assertThat( getIntOrNull( mdrUnkSTRUCT, "NUMERIC_SCALE" ), nullValue() );
  }

  @Test
  @Ignore( "TODO(DRILL-3253): unignore when we have all-types test storage plugin" )
  public void test_NUMERIC_SCALE_hasRightValue_tbdUnion() throws SQLException {
    assertThat( getIntOrNull( mdrUnkUnion, "NUMERIC_SCALE" ), nullValue() );
  }

  @Test
  public void test_NUMERIC_SCALE_hasSameNameAndLabel() throws SQLException {
    assertThat( rowsMetadata.getColumnName( 13 ), equalTo( "NUMERIC_SCALE" ) );
  }

  @Test
  public void test_NUMERIC_SCALE_hasRightTypeString() throws SQLException {
    assertThat( rowsMetadata.getColumnTypeName( 13 ), equalTo( "INTEGER" ) );
  }

  @Test
  public void test_NUMERIC_SCALE_hasRightTypeCode() throws SQLException {
    assertThat( rowsMetadata.getColumnType( 13 ), equalTo( Types.INTEGER ) );
  }

  @Test
  public void test_NUMERIC_SCALE_hasRightNullability() throws SQLException {
    assertThat( "ResultSetMetaData.column...Null... nullability code:",
                rowsMetadata.isNullable( 13 ), equalTo( columnNullable ) );
  }


  ////////////////////////////////////////////////////////////
  // #14: DATETIME_PRECISION:
  // - SQL:
  // - Drill:
  // - (Meta): INTEGER; Nullable;

  @Test
  public void test_DATETIME_PRECISION_isAtRightPosition() throws SQLException {
    assertThat( rowsMetadata.getColumnLabel( 14 ), equalTo( "DATETIME_PRECISION" ) );
  }

  @Test
  public void test_DATETIME_PRECISION_hasRightValue_mdrOptBOOLEAN() throws SQLException {
    assertThat( getIntOrNull( mdrOptBOOLEAN, "DATETIME_PRECISION" ), nullValue() );
  }

  @Ignore( "TODO(DRILL-2470): unignore when TINYINT is implemented" )
  @Test
  public void test_DATETIME_PRECISION_hasRightValue_mdrReqTINYINT() throws SQLException {
    assertThat( getIntOrNull( mdrReqTINYINT, "DATETIME_PRECISION" ), nullValue() );
  }

  @Ignore( "TODO(DRILL-2470): unignore when SMALLINT is implemented" )
  @Test
  public void test_DATETIME_PRECISION_hasRightValue_mdrOptSMALLINT() throws SQLException {
    assertThat( getIntOrNull( mdrOptSMALLINT, "DATETIME_PRECISION" ), nullValue() );
  }

  @Test
  public void test_DATETIME_PRECISION_hasRightValue_mdrReqINTEGER() throws SQLException {
    assertThat( getIntOrNull( mdrReqINTEGER, "DATETIME_PRECISION" ), nullValue() );
  }

  @Test
  public void test_DATETIME_PRECISION_hasRightValue_mdrOptBIGINT() throws SQLException {
    assertThat( getIntOrNull( mdrOptBIGINT, "DATETIME_PRECISION" ), nullValue() );
  }

  @Ignore( "TODO(DRILL-2683): unignore when REAL is implemented" )
  @Test
  public void test_DATETIME_PRECISION_hasRightValue_mdrOptREAL() throws SQLException {
    assertThat( getIntOrNull( mdrOptREAL, "DATETIME_PRECISION" ), nullValue() );
  }

  @Test
  public void test_DATETIME_PRECISION_hasRightValue_mdrOptFLOAT() throws SQLException {
    assertThat( getIntOrNull( mdrOptFLOAT, "DATETIME_PRECISION" ), nullValue() );
  }

  @Test
  public void test_DATETIME_PRECISION_hasRightValue_mdrReqDOUBLE() throws SQLException {
    assertThat( getIntOrNull( mdrReqDOUBLE, "DATETIME_PRECISION" ), nullValue() );
  }

  @Test
  public void test_DATETIME_PRECISION_hasRightValue_mdrReqDECIMAL_5_3() throws SQLException {
    assertThat( getIntOrNull( mdrReqDECIMAL_5_3, "DATETIME_PRECISION" ), nullValue() );
  }

  @Test
  public void test_DATETIME_PRECISION_hasRightValue_mdrReqVARCHAR_10() throws SQLException {
    assertThat( getIntOrNull( mdrReqVARCHAR_10, "DATETIME_PRECISION" ), nullValue() );
  }

  @Test
  public void test_DATETIME_PRECISION_hasRightValue_mdrOptVARCHAR() throws SQLException {
    assertThat( getIntOrNull( mdrOptVARCHAR, "DATETIME_PRECISION" ), nullValue() );
  }

  @Test
  public void test_DATETIME_PRECISION_hasRightValue_mdrReqCHAR_5() throws SQLException {
    assertThat( getIntOrNull( mdrReqCHAR_5, "DATETIME_PRECISION" ), nullValue() );
  }

  @Test
  public void test_DATETIME_PRECISION_hasRightValue_mdrOptVARBINARY_16() throws SQLException {
    assertThat( getIntOrNull( mdrOptVARBINARY_16, "DATETIME_PRECISION" ), nullValue() );
  }

  @Test
  public void test_DATETIME_PRECISION_hasRightValue_mdrOptBINARY_1048576() throws SQLException {
    assertThat( getIntOrNull(mdrOptBINARY_65536, "DATETIME_PRECISION" ), nullValue() );
  }

  @Test
  public void test_DATETIME_PRECISION_hasRightValue_mdrReqDATE() throws SQLException {
    // Zero because DATE doesn't (seem to) have a datetime precision, but its
    // DATETIME_PRECISION value must not be null.
    assertThat( getIntOrNull( mdrReqDATE, "DATETIME_PRECISION" ), equalTo( 0 ) );
  }

  @Test
  public void test_DATETIME_PRECISION_hasRightValue_mdrReqTIME() throws SQLException {
    // 3 is default datetime precision for TIME.
    assertThat( getIntOrNull( mdrReqTIME, "DATETIME_PRECISION" ), equalTo( 3 ) );
  }

  @Ignore( "TODO(DRILL-3225): unignore when datetime precision is implemented" )
  @Test
  public void test_DATETIME_PRECISION_hasRightValue_mdrOptTIME_7() throws SQLException {
    assertThat( getIntOrNull( mdrOptTIME_7, "DATETIME_PRECISION" ), equalTo( 7 ) );
  }

  @Test
  @Ignore( "TODO(DRILL-3225): unignore when datetime precision is implemented" )
  public void test_DATETIME_PRECISION_hasRightValue_mdrOptTIMESTAMP() throws SQLException {
    // 6 is default datetime precision for TIMESTAMP.
    assertThat( getIntOrNull( mdrOptTIMESTAMP, "DATETIME_PRECISION" ), equalTo( 6 ) );
  }

  @Test
  public void test_DATETIME_PRECISION_hasRightValue_mdrReqINTERVAL_Y() throws SQLException {
    assertThat( getIntOrNull( mdrReqINTERVAL_Y, "DATETIME_PRECISION" ), equalTo( 0 ) );
  }

  @Test
  public void test_DATETIME_PRECISION_hasRightValue_mdrReqINTERVAL_3Y_Mo() throws SQLException {
    assertThat( getIntOrNull( mdrReqINTERVAL_3Y_Mo, "DATETIME_PRECISION" ), equalTo( 0 ) );
  }

  @Test
  public void test_DATETIME_PRECISION_hasRightValue_mdrReqINTERVAL_Mo() throws SQLException {
    assertThat( getIntOrNull( mdrReqINTERVAL_Mo, "DATETIME_PRECISION" ), equalTo( 0 ) );
  }

  @Test
  public void test_DATETIME_PRECISION_hasRightValue_mdrReqINTERVAL_D() throws SQLException {
    // 6 seems to be Drill's (Calcite's) choice (to use default value for the
    // fractional seconds precision for when SECOND _is_ present) since the SQL
    // spec. (ISO/IEC 9075-2:2011(E) 10.1 <interval qualifier>) doesn't seem to
    // specify the fractional seconds precision when SECOND is _not_ present.
    assertThat( getIntOrNull( mdrReqINTERVAL_D, "DATETIME_PRECISION" ), equalTo( 6 ) );
  }

  @Test
  public void test_DATETIME_PRECISION_hasRightValue_mdrReqINTERVAL_4D_H() throws SQLException {
    // 6 seems to be Drill's (Calcite's) choice (to use default value for the
    // fractional seconds precision for when SECOND _is_ present) since the SQL
    // spec. (ISO/IEC 9075-2:2011(E) 10.1 <interval qualifier>) doesn't seem to
    // specify the fractional seconds precision when SECOND is _not_ present.
    assertThat( getIntOrNull( mdrReqINTERVAL_4D_H, "DATETIME_PRECISION" ), equalTo( 6 ) );
  }

  @Test
  public void test_DATETIME_PRECISION_hasRightValue_mdrReqINTERVAL_3D_Mi() throws SQLException {
    // 6 seems to be Drill's (Calcite's) choice (to use default value for the
    // fractional seconds precision for when SECOND _is_ present) since the SQL
    // spec. (ISO/IEC 9075-2:2011(E) 10.1 <interval qualifier>) doesn't seem to
    // specify the fractional seconds precision when SECOND is _not_ present.
    assertThat( getIntOrNull( mdrReqINTERVAL_3D_Mi, "DATETIME_PRECISION" ), equalTo( 6 ) );
  }

  //Fixed with Calcite update
  //@Ignore( "TODO(DRILL-3244): unignore when fractional secs. prec. is right" )
  @Test
  public void test_DATETIME_PRECISION_hasRightValue_mdrReqINTERVAL_2D_S5() throws SQLException {
    assertThat( getIntOrNull( mdrReqINTERVAL_2D_S5, "DATETIME_PRECISION" ), equalTo( 5 ) );
  }

  @Ignore( "Ignored after Calcite update" )
  @Test
  public void test_DATETIME_PRECISION_hasINTERIMValue_mdrReqINTERVAL_2D_S5() throws SQLException {
    assertThat( "When DRILL-3244 fixed, un-ignore above method and purge this.",
                getIntOrNull( mdrReqINTERVAL_2D_S5, "DATETIME_PRECISION" ), equalTo( 2 ) );
  }

  @Test
  public void test_DATETIME_PRECISION_hasRightValue_mdrReqINTERVAL_H() throws SQLException {
    // 6 seems to be Drill's (Calcite's) choice (to use default value for the
    // fractional seconds precision for when SECOND _is_ present) since the SQL
    // spec. (ISO/IEC 9075-2:2011(E) 10.1 <interval qualifier>) doesn't seem to
    // specify the fractional seconds precision when SECOND is _not_ present.
    assertThat( getIntOrNull( mdrReqINTERVAL_H, "DATETIME_PRECISION" ), equalTo( 6 ) );
  }

  @Test
  public void test_DATETIME_PRECISION_hasRightValue_mdrReqINTERVAL_1H_Mi() throws SQLException {
    // 6 seems to be Drill's (Calcite's) choice (to use default value for the
    // fractional seconds precision for when SECOND _is_ present) since the SQL
    // spec. (ISO/IEC 9075-2:2011(E) 10.1 <interval qualifier>) doesn't seem to
    // specify the fractional seconds precision when SECOND is _not_ present.
    assertThat( getIntOrNull( mdrReqINTERVAL_1H_Mi, "DATETIME_PRECISION" ), equalTo( 6 ) );
  }

  //Fixed with Calcite update
  //@Ignore( "TODO(DRILL-3244): unignore when fractional secs. prec. is right" )
  @Test
  public void test_DATETIME_PRECISION_hasRightValue_mdrReqINTERVAL_H_S3() throws SQLException {
    assertThat( getIntOrNull( mdrReqINTERVAL_3H_S1, "DATETIME_PRECISION" ), equalTo( 1 ) );
  }

  @Ignore( "Ignored after Calcite update" )
  @Test
  public void test_DATETIME_PRECISION_hasINTERIMValue_mdrReqINTERVAL_H_S3() throws SQLException {
    assertThat( "When DRILL-3244 fixed, un-ignore above method and purge this.",
                getIntOrNull( mdrReqINTERVAL_3H_S1, "DATETIME_PRECISION" ), equalTo( 3 ) );
  }

  @Test
  public void test_DATETIME_PRECISION_hasRightValue_mdrReqINTERVAL_Mi() throws SQLException {
    // 6 seems to be Drill's (Calcite's) choice (to use default value for the
    // fractional seconds precision for when SECOND _is_ present) since the SQL
    // spec. (ISO/IEC 9075-2:2011(E) 10.1 <interval qualifier>) doesn't seem to
    // specify the fractional seconds precision when SECOND is _not_ present.
    assertThat( getIntOrNull( mdrReqINTERVAL_Mi, "DATETIME_PRECISION" ), equalTo( 6 ) );
  }

  @Test
  public void test_DATETIME_PRECISION_hasRightValue_mdrReqINTERVAL_5Mi_S() throws SQLException {
    // 6 is default fractional seconds precision when SECOND field is present.
    assertThat( getIntOrNull( mdrReqINTERVAL_5Mi_S, "DATETIME_PRECISION" ), equalTo( 6 ) );
  }

  @Test
  public void test_DATETIME_PRECISION_hasRightValue_mdrReqINTERVAL_S() throws SQLException {
    // 6 is default for interval fraction seconds precision.
    assertThat( getIntOrNull( mdrReqINTERVAL_S, "DATETIME_PRECISION" ), equalTo( 6 ) );
  }

  @Test
  public void test_DATETIME_PRECISION_hasRightValue_mdrReqINTERVAL_3S() throws SQLException {
    // 6 is default fractional seconds precision when SECOND field is present.
    assertThat( getIntOrNull( mdrReqINTERVAL_3S, "DATETIME_PRECISION" ), equalTo( 6 ) );
  }

  //Fixed with Calcite update
  //@Ignore( "TODO(DRILL-3244): unignore when fractional secs. prec. is right" )
  @Test
  public void test_DATETIME_PRECISION_hasRightValue_mdrReqINTERVAL_3S1() throws SQLException {
    assertThat( getIntOrNull( mdrReqINTERVAL_3S1, "DATETIME_PRECISION" ), equalTo( 1 ) );
  }

  @Ignore( "Ignored after Calcite update" )
  @Test
  public void test_DATETIME_PRECISION_hasINTERIMValue_mdrReqINTERVAL_3S1() throws SQLException {
    assertThat( "When DRILL-3244 fixed, un-ignore above method and purge this.",
                getIntOrNull( mdrReqINTERVAL_3S1, "DATETIME_PRECISION" ), equalTo( 3 ) );
  }

  @Test
  @Ignore( "TODO(DRILL-3253): unignore when we have all-types test storage plugin" )
  public void test_DATETIME_PRECISION_hasRightValue_tdbARRAY() throws SQLException {
    assertThat( getIntOrNull( mdrReqARRAY, "DATETIME_PRECISION" ), nullValue() );
  }

  @Test
  @Ignore( "TODO(DRILL-3253): unignore when we have all-types test storage plugin" )
  public void test_DATETIME_PRECISION_hasRightValue_tbdMAP() throws SQLException {
    assertThat( getIntOrNull( mdrReqMAP, "DATETIME_PRECISION" ), nullValue() );
  }

  @Test
  @Ignore( "TODO(DRILL-3253): unignore when we have all-types test storage plugin" )
  public void test_DATETIME_PRECISION_hasRightValue_tbdSTRUCT() throws SQLException {
    assertThat( getIntOrNull( mdrUnkSTRUCT, "DATETIME_PRECISION" ), nullValue() );
  }

  @Test
  @Ignore( "TODO(DRILL-3253): unignore when we have all-types test storage plugin" )
  public void test_DATETIME_PRECISION_hasRightValue_tbdUnion() throws SQLException {
    assertThat( getIntOrNull( mdrUnkUnion, "DATETIME_PRECISION" ), nullValue() );
  }

  @Test
  public void test_DATETIME_PRECISION_hasSameNameAndLabel() throws SQLException {
    assertThat( rowsMetadata.getColumnName( 14 ), equalTo( "DATETIME_PRECISION" ) );
  }

  @Test
  public void test_DATETIME_PRECISION_hasRightTypeString() throws SQLException {
    assertThat( rowsMetadata.getColumnTypeName( 14 ), equalTo( "INTEGER" ) );
  }

  @Test
  public void test_DATETIME_PRECISION_hasRightTypeCode() throws SQLException {
    assertThat( rowsMetadata.getColumnType( 14 ), equalTo( Types.INTEGER ) );
  }

  @Test
  public void test_DATETIME_PRECISION_hasRightNullability() throws SQLException {
    assertThat( "ResultSetMetaData.column...Null... nullability code:",
                rowsMetadata.isNullable( 14 ), equalTo( columnNullable ) );
  }


  ////////////////////////////////////////////////////////////
  // #15: INTERVAL_TYPE:
  // - SQL:
  // - Drill:
  // - (Meta): VARCHAR; Nullable;

  @Test
  public void test_INTERVAL_TYPE_isAtRightPosition() throws SQLException {
    assertThat( rowsMetadata.getColumnLabel( 15 ), equalTo( "INTERVAL_TYPE" ) );
  }

  @Test
  public void test_INTERVAL_TYPE_hasRightValue_mdrOptBOOLEAN() throws SQLException {
    assertThat( mdrOptBOOLEAN.getString( "INTERVAL_TYPE" ), nullValue() );
  }

  @Ignore( "TODO(DRILL-2470): unignore when TINYINT is implemented" )
  @Test
  public void test_INTERVAL_TYPE_hasRightValue_mdrReqTINYINT() throws SQLException {
    assertThat( mdrReqTINYINT.getString( "INTERVAL_TYPE" ), nullValue() );
  }

  @Ignore( "TODO(DRILL-2470): unignore when SMALLINT is implemented" )
  @Test
  public void test_INTERVAL_TYPE_hasRightValue_mdrOptSMALLINT() throws SQLException {
    assertThat( mdrOptSMALLINT.getString( "INTERVAL_TYPE" ), nullValue() );
  }

  @Test
  public void test_INTERVAL_TYPE_hasRightValue_mdrReqINTEGER() throws SQLException {
    assertThat( mdrReqINTEGER.getString( "INTERVAL_TYPE" ), nullValue() );
  }

  @Test
  public void test_INTERVAL_TYPE_hasRightValue_mdrOptBIGINT() throws SQLException {
    assertThat( mdrOptBIGINT.getString( "INTERVAL_TYPE" ), nullValue() );
  }

  @Ignore( "TODO(DRILL-2683): unignore when REAL is implemented" )
  @Test
  public void test_INTERVAL_TYPE_hasRightValue_mdrOptREAL() throws SQLException {
    assertThat( mdrOptREAL.getString( "INTERVAL_TYPE" ), nullValue() );
  }

  @Test
  public void test_INTERVAL_TYPE_hasRightValue_mdrOptFLOAT() throws SQLException {
    assertThat( mdrOptFLOAT.getString( "INTERVAL_TYPE" ), nullValue() );
  }

  @Test
  public void test_INTERVAL_TYPE_hasRightValue_mdrReqDOUBLE() throws SQLException {
    assertThat( mdrReqDOUBLE.getString( "INTERVAL_TYPE" ), nullValue() );
  }

  @Test
  public void test_INTERVAL_TYPE_hasRightValue_mdrReqDECIMAL_5_3() throws SQLException {
    assertThat( mdrReqDECIMAL_5_3.getString( "INTERVAL_TYPE" ), nullValue() );
  }

  @Test
  public void test_INTERVAL_TYPE_hasRightValue_mdrReqVARCHAR_10() throws SQLException {
    assertThat( mdrReqVARCHAR_10.getString( "INTERVAL_TYPE" ), nullValue() );
  }

  @Test
  public void test_INTERVAL_TYPE_hasRightValue_mdrOptVARCHAR() throws SQLException {
    assertThat( mdrOptVARCHAR.getString( "INTERVAL_TYPE" ), nullValue() );
  }

  @Test
  public void test_INTERVAL_TYPE_hasRightValue_mdrReqCHAR_5() throws SQLException {
    assertThat( mdrReqCHAR_5.getString( "INTERVAL_TYPE" ), nullValue() );
  }

  @Test
  public void test_INTERVAL_TYPE_hasRightValue_mdrOptVARBINARY_16() throws SQLException {
    assertThat( mdrOptVARBINARY_16.getString( "INTERVAL_TYPE" ), nullValue() );
  }

  @Test
  public void test_INTERVAL_TYPE_hasRightValue_mdrOptBINARY_1048576() throws SQLException {
    assertThat( mdrOptBINARY_65536.getString( "INTERVAL_TYPE" ), nullValue() );
  }

  @Test
  public void test_INTERVAL_TYPE_hasRightValue_mdrReqDATE() throws SQLException {
    assertThat( mdrReqDATE.getString( "INTERVAL_TYPE" ), nullValue() );
  }

  @Test
  public void test_INTERVAL_TYPE_hasRightValue_mdrReqTIME() throws SQLException {
    assertThat( mdrReqTIME.getString( "INTERVAL_TYPE" ), nullValue() );
  }

  @Test
  public void test_INTERVAL_TYPE_hasRightValue_mdrOptTIME_7() throws SQLException {
    assertThat( mdrOptTIME_7.getString( "INTERVAL_TYPE" ), nullValue() );
  }

  @Test
  public void test_INTERVAL_TYPE_hasRightValue_mdrOptTIMESTAMP() throws SQLException {
    assertThat( mdrOptTIMESTAMP.getString( "INTERVAL_TYPE" ), nullValue() );
  }

  @Test
  public void test_INTERVAL_TYPE_hasRightValue_mdrReqINTERVAL_Y() throws SQLException {
    assertThat( mdrReqINTERVAL_Y.getString( "INTERVAL_TYPE" ), equalTo( "YEAR" ) );
  }

  @Test
  public void test_INTERVAL_TYPE_hasRightValue_mdrReqINTERVAL_3Y_Mo() throws SQLException {
    assertThat( mdrReqINTERVAL_3Y_Mo.getString( "INTERVAL_TYPE" ), equalTo( "YEAR TO MONTH" ) );
  }

  @Test
  public void test_INTERVAL_TYPE_hasRightValue_mdrReqINTERVAL_2Mo() throws SQLException {
    assertThat( mdrReqINTERVAL_Mo.getString( "INTERVAL_TYPE" ), equalTo( "MONTH" ) );
  }

  @Test
  public void test_INTERVAL_TYPE_hasRightValue_mdrReqINTERVAL_D() throws SQLException {
    assertThat( mdrReqINTERVAL_D.getString( "INTERVAL_TYPE" ), equalTo( "DAY" ) );
  }

  @Test
  public void test_INTERVAL_TYPE_hasRightValue_mdrReqINTERVAL_4D_H() throws SQLException {
    assertThat( mdrReqINTERVAL_4D_H.getString( "INTERVAL_TYPE" ), equalTo( "DAY TO HOUR" ) );
  }

  @Test
  public void test_INTERVAL_TYPE_hasRightValue_mdrReqINTERVAL_3D_Mi() throws SQLException {
    assertThat( mdrReqINTERVAL_3D_Mi.getString( "INTERVAL_TYPE" ), equalTo( "DAY TO MINUTE" ) );
  }

  @Test
  public void test_INTERVAL_TYPE_hasRightValue_mdrReqINTERVAL_H_S3() throws SQLException {
    assertThat( mdrReqINTERVAL_3H_S1.getString( "INTERVAL_TYPE" ),
                equalTo( "HOUR TO SECOND" ) );
  }

  @Test
  public void test_INTERVAL_TYPE_hasRightValue_mdrReqINTERVAL_2D_S5() throws SQLException {
    assertThat( mdrReqINTERVAL_2D_S5.getString( "INTERVAL_TYPE" ), equalTo( "DAY TO SECOND" ) );
  }

  @Test
  public void test_INTERVAL_TYPE_hasRightValue_mdrReqINTERVAL_H() throws SQLException {
    assertThat( mdrReqINTERVAL_H.getString( "INTERVAL_TYPE" ), equalTo( "HOUR" ) );
   // fail( "???VERIFY" );
  }

  @Test
  public void test_INTERVAL_TYPE_hasRightValue_mdrReqINTERVAL_1H_Mi() throws SQLException {
    assertThat( mdrReqINTERVAL_1H_Mi.getString( "INTERVAL_TYPE" ), equalTo( "HOUR TO MINUTE" ) );
  }

  @Test
  public void test_INTERVAL_TYPE_hasRightValue_mdrReqINTERVAL_3H_S1() throws SQLException {
    assertThat( mdrReqINTERVAL_3H_S1.getString( "INTERVAL_TYPE" ), equalTo( "HOUR TO SECOND" ) );
  }

  @Test
  public void test_INTERVAL_TYPE_hasRightValue_mdrReqINTERVAL_Mi() throws SQLException {
    assertThat( mdrReqINTERVAL_Mi.getString( "INTERVAL_TYPE" ), equalTo( "MINUTE" ) );
  }

  @Test
  public void test_INTERVAL_TYPE_hasRightValue_mdrReqINTERVAL_5Mi_S() throws SQLException {
    assertThat( mdrReqINTERVAL_5Mi_S.getString( "INTERVAL_TYPE" ), equalTo( "MINUTE TO SECOND" ) );
  }

  @Test
  public void test_INTERVAL_TYPE_hasRightValue_mdrReqINTERVAL_S() throws SQLException {
    assertThat( mdrReqINTERVAL_S.getString( "INTERVAL_TYPE" ), equalTo( "SECOND" ) );
  }

  @Test
  public void test_INTERVAL_TYPE_hasRightValue_mdrReqINTERVAL_3S() throws SQLException {
    assertThat( mdrReqINTERVAL_3S.getString( "INTERVAL_TYPE" ), equalTo( "SECOND" ) );
  }

  @Test
  public void test_INTERVAL_TYPE_hasRightValue_mdrReqINTERVAL_3S1() throws SQLException {
    assertThat( mdrReqINTERVAL_3S1.getString( "INTERVAL_TYPE" ), equalTo( "SECOND" ) );
  }

  @Test
  @Ignore( "TODO(DRILL-3253): unignore when we have all-types test storage plugin" )
  public void test_INTERVAL_TYPE_hasRightValue_tdbARRAY() throws SQLException {
    assertThat( mdrReqARRAY.getString( "INTERVAL_TYPE" ), nullValue() );
  }

  @Test
  @Ignore( "TODO(DRILL-3253): unignore when we have all-types test storage plugin" )
  public void test_INTERVAL_TYPE_hasRightValue_tbdMAP() throws SQLException {
    assertThat( mdrReqMAP.getString( "INTERVAL_TYPE" ), nullValue() );
  }

  @Test
  @Ignore( "TODO(DRILL-3253): unignore when we have all-types test storage plugin" )
  public void test_INTERVAL_TYPE_hasRightValue_tbdSTRUCT() throws SQLException {
    assertThat( getIntOrNull( mdrUnkSTRUCT, "INTERVAL_TYPE" ), nullValue() );
  }

  @Test
  @Ignore( "TODO(DRILL-3253): unignore when we have all-types test storage plugin" )
  public void test_INTERVAL_TYPE_hasRightValue_tbdUnion() throws SQLException {
    assertThat( getIntOrNull( mdrUnkUnion, "INTERVAL_TYPE" ), nullValue() );
  }

  @Test
  public void test_INTERVAL_TYPE_hasSameNameAndLabel() throws SQLException {
    assertThat( rowsMetadata.getColumnName( 15 ), equalTo( "INTERVAL_TYPE" ) );
  }

  @Test
  public void test_INTERVAL_TYPE_hasRightTypeString() throws SQLException {
    assertThat( rowsMetadata.getColumnTypeName( 15 ),
                equalTo( "CHARACTER VARYING" ) );
  }

  @Test
  public void test_INTERVAL_TYPE_hasRightTypeCode() throws SQLException {
    assertThat( rowsMetadata.getColumnType( 15 ), equalTo( Types.VARCHAR ) );
  }

  @Test
  public void test_INTERVAL_TYPE_hasRightNullability() throws SQLException {
    assertThat( "ResultSetMetaData.column...Null... nullability code:",
                rowsMetadata.isNullable( 15 ), equalTo( columnNullable ) );
  }


  ////////////////////////////////////////////////////////////
  // #16: INTERVAL_PRECISION:
  // - SQL:
  // - Drill:
  // - (Meta): INTEGER; Nullable;

  @Test
  public void test_INTERVAL_PRECISION_isAtRightPosition() throws SQLException {
    assertThat( rowsMetadata.getColumnLabel( 16 ), equalTo( "INTERVAL_PRECISION" ) );
  }

  @Test
  public void test_INTERVAL_PRECISION_hasRightValue_mdrOptBOOLEAN() throws SQLException {
    assertThat( getIntOrNull( mdrOptBOOLEAN, "INTERVAL_PRECISION" ), nullValue() );
  }

  @Ignore( "TODO(DRILL-2470): unignore when TINYINT is implemented" )
  @Test
  public void test_INTERVAL_PRECISION_hasRightValue_mdrReqTINYINT() throws SQLException {
    assertThat( getIntOrNull( mdrReqTINYINT, "INTERVAL_PRECISION" ), nullValue() );
  }

  @Ignore( "TODO(DRILL-2470): unignore when SMALLINT is implemented" )
  @Test
  public void test_INTERVAL_PRECISION_hasRightValue_mdrOptSMALLINT() throws SQLException {
    assertThat( getIntOrNull( mdrOptSMALLINT, "INTERVAL_PRECISION" ), nullValue() );
  }

  @Test
  public void test_INTERVAL_PRECISION_hasRightValue_mdrReqINTEGER() throws SQLException {
    assertThat( getIntOrNull( mdrReqINTEGER, "INTERVAL_PRECISION" ), nullValue() );
  }

  @Test
  public void test_INTERVAL_PRECISION_hasRightValue_mdrOptBIGINT() throws SQLException {
    assertThat( getIntOrNull( mdrOptBIGINT, "INTERVAL_PRECISION" ), nullValue() );
  }

  @Ignore( "TODO(DRILL-2683): unignore when REAL is implemented" )
  @Test
  public void test_INTERVAL_PRECISION_hasRightValue_mdrOptREAL() throws SQLException {
    assertThat( getIntOrNull( mdrOptREAL, "INTERVAL_PRECISION" ), nullValue() );
  }

  @Test
  public void test_INTERVAL_PRECISION_hasRightValue_mdrOptFLOAT() throws SQLException {
    assertThat( getIntOrNull( mdrOptFLOAT, "INTERVAL_PRECISION" ), nullValue() );
  }

  @Test
  public void test_INTERVAL_PRECISION_hasRightValue_mdrReqDOUBLE() throws SQLException {
    assertThat( getIntOrNull( mdrReqDOUBLE, "INTERVAL_PRECISION" ), nullValue() );
  }

  @Test
  public void test_INTERVAL_PRECISION_hasRightValue_mdrReqDECIMAL_5_3() throws SQLException {
    assertThat( getIntOrNull( mdrReqDECIMAL_5_3, "INTERVAL_PRECISION" ), nullValue() );
  }

  @Test
  public void test_INTERVAL_PRECISION_hasRightValue_mdrReqVARCHAR_10() throws SQLException {
    assertThat( getIntOrNull( mdrReqVARCHAR_10, "INTERVAL_PRECISION" ), nullValue() );
  }

  @Test
  public void test_INTERVAL_PRECISION_hasRightValue_mdrOptVARCHAR() throws SQLException {
    assertThat( getIntOrNull( mdrOptVARCHAR, "INTERVAL_PRECISION" ), nullValue() );
  }

  @Test
  public void test_INTERVAL_PRECISION_hasRightValue_mdrReqCHAR_5() throws SQLException {
    assertThat( getIntOrNull( mdrReqCHAR_5, "INTERVAL_PRECISION" ), nullValue() );
  }

  @Test
  public void test_INTERVAL_PRECISION_hasRightValue_mdrOptVARBINARY_16() throws SQLException {
    assertThat( getIntOrNull( mdrOptVARBINARY_16, "INTERVAL_PRECISION" ), nullValue() );
  }

  @Test
  public void test_INTERVAL_PRECISION_hasRightValue_mdrOptBINARY_1048576() throws SQLException {
    assertThat( getIntOrNull(mdrOptBINARY_65536, "INTERVAL_PRECISION" ), nullValue() );
  }

  @Test
  public void test_INTERVAL_PRECISION_hasRightValue_mdrReqDATE() throws SQLException {
    assertThat( getIntOrNull( mdrReqDATE, "INTERVAL_PRECISION" ), nullValue() );
  }

  @Test
  public void test_INTERVAL_PRECISION_hasRightValue_mdrReqTIME() throws SQLException {
    assertThat( getIntOrNull( mdrReqTIME, "INTERVAL_PRECISION" ), nullValue() );
  }

  @Test
  public void test_INTERVAL_PRECISION_hasRightValue_mdrOptTIME_7() throws SQLException {
    assertThat( getIntOrNull( mdrOptTIME_7, "INTERVAL_PRECISION" ), nullValue() );
  }

  @Test
  public void test_INTERVAL_PRECISION_hasRightValue_mdrOptTIMESTAMP() throws SQLException {
    assertThat( getIntOrNull( mdrOptTIMESTAMP, "INTERVAL_PRECISION" ), nullValue() );
  }

  @Test
  public void test_INTERVAL_PRECISION_hasRightValue_mdrReqINTERVAL_Y() throws SQLException {
    // 2 is default field precision.
    assertThat( getIntOrNull( mdrReqINTERVAL_Y, "INTERVAL_PRECISION" ), equalTo( 2 ) );
  }

  @Test
  public void test_INTERVAL_PRECISION_hasRightValue_mdrReqINTERVAL_3Y_Mo() throws SQLException {
    assertThat( getIntOrNull( mdrReqINTERVAL_3Y_Mo, "INTERVAL_PRECISION" ), equalTo( 3 ) );
  }

  @Test
  public void test_INTERVAL_PRECISION_hasRightValue_mdrReqINTERVAL_2Mo() throws SQLException {
    // 2 is default field precision.
    assertThat( getIntOrNull( mdrReqINTERVAL_Mo, "INTERVAL_PRECISION" ), equalTo( 2 ) );
  }

  @Test
  public void test_INTERVAL_PRECISION_hasRightValue_mdrReqINTERVAL_D() throws SQLException {
    // 2 is default field precision.
    assertThat( getIntOrNull( mdrReqINTERVAL_D, "INTERVAL_PRECISION" ), equalTo( 2 ) );
  }

  @Test
  public void test_INTERVAL_PRECISION_hasRightValue_mdrReqINTERVAL_4D_H() throws SQLException {
    assertThat( getIntOrNull( mdrReqINTERVAL_4D_H, "INTERVAL_PRECISION" ), equalTo( 4 ) );
  }

  @Test
  public void test_INTERVAL_PRECISION_hasRightValue_mdrReqINTERVAL_3D_Mi() throws SQLException {
    assertThat( getIntOrNull( mdrReqINTERVAL_3D_Mi, "INTERVAL_PRECISION" ), equalTo( 3 ) );
  }

  @Test
  public void test_INTERVAL_PRECISION_hasRightValue_mdrReqINTERVAL_2D_S5() throws SQLException {
    assertThat( getIntOrNull( mdrReqINTERVAL_2D_S5, "INTERVAL_PRECISION" ), equalTo( 2 ) );
  }

  @Test
  public void test_INTERVAL_PRECISION_hasRightValue_mdrReqINTERVAL_H() throws SQLException {
    // 2 is default field precision.
    assertThat( getIntOrNull( mdrReqINTERVAL_H, "INTERVAL_PRECISION" ), equalTo( 2 ) );
  }

  @Test
  public void test_INTERVAL_PRECISION_hasRightValue_mdrReqINTERVAL_1H_Mi() throws SQLException {
    assertThat( getIntOrNull( mdrReqINTERVAL_1H_Mi, "INTERVAL_PRECISION" ), equalTo( 1 ) );
  }

  @Test
  public void test_INTERVAL_PRECISION_hasRightValue_mdrReqINTERVAL_3H_S1() throws SQLException {
    assertThat( getIntOrNull( mdrReqINTERVAL_3H_S1, "INTERVAL_PRECISION" ), equalTo( 3 ) );
  }

  @Test
  public void test_INTERVAL_PRECISION_hasRightValue_mdrReqINTERVAL_Mi() throws SQLException {
    assertThat( getIntOrNull( mdrReqINTERVAL_Mi, "INTERVAL_PRECISION" ), equalTo( 2 ) );
  }

  @Test
  public void test_INTERVAL_PRECISION_hasRightValue_mdrReqINTERVAL_5Mi_S() throws SQLException {
    assertThat( getIntOrNull( mdrReqINTERVAL_5Mi_S, "INTERVAL_PRECISION" ), equalTo( 5 ) );
  }

  @Test
  public void test_INTERVAL_PRECISION_hasRightValue_mdrReqINTERVAL_S() throws SQLException {
    // 2 is default field precision.
    assertThat( getIntOrNull( mdrReqINTERVAL_S, "INTERVAL_PRECISION" ), equalTo( 2 ) );
  }

  @Test
  public void test_INTERVAL_PRECISION_hasRightValue_mdrReqINTERVAL_3S() throws SQLException {
    assertThat( getIntOrNull( mdrReqINTERVAL_3S, "INTERVAL_PRECISION" ), equalTo( 3 ) );
  }

  @Test
  public void test_INTERVAL_PRECISION_hasRightValue_mdrReqINTERVAL_3S1() throws SQLException {
    assertThat( getIntOrNull( mdrReqINTERVAL_3S1, "INTERVAL_PRECISION" ), equalTo( 3 ) );
  }

  @Test
  @Ignore( "TODO(DRILL-3253): unignore when we have all-types test storage plugin" )
  public void test_INTERVAL_PRECISION_hasRightValue_tdbARRAY() throws SQLException {
    assertThat( getIntOrNull( mdrReqARRAY, "INTERVAL_PRECISION" ), nullValue() );
  }

  @Test
  @Ignore( "TODO(DRILL-3253): unignore when we have all-types test storage plugin" )
  public void test_INTERVAL_PRECISION_hasRightValue_tbdMAP() throws SQLException {
    assertThat( getIntOrNull( mdrReqMAP, "INTERVAL_PRECISION" ), nullValue() );
  }

  @Test
  @Ignore( "TODO(DRILL-3253): unignore when we have all-types test storage plugin" )
  public void test_INTERVAL_PRECISION_hasRightValue_tbdSTRUCT() throws SQLException {
    assertThat( getIntOrNull( mdrUnkSTRUCT, "INTERVAL_PRECISION" ), nullValue() );
  }

  @Test
  @Ignore( "TODO(DRILL-3253): unignore when we have all-types test storage plugin" )
  public void test_INTERVAL_PRECISION_hasRightValue_tbdUnion() throws SQLException {
    assertThat( getIntOrNull( mdrUnkUnion, "INTERVAL_PRECISION" ), nullValue() );
  }

  @Test
  public void test_INTERVAL_PRECISION_hasSameNameAndLabel() throws SQLException {
    assertThat( rowsMetadata.getColumnName( 16 ), equalTo( "INTERVAL_PRECISION" ) );
  }

  @Test
  public void test_INTERVAL_PRECISION_hasRightTypeString() throws SQLException {
    assertThat( rowsMetadata.getColumnTypeName( 16 ), equalTo( "INTEGER" ) );
  }

  @Test
  public void test_INTERVAL_PRECISION_hasRightTypeCode() throws SQLException {
    assertThat( rowsMetadata.getColumnType( 16 ), equalTo( Types.INTEGER ) );
  }

  @Test
  public void test_INTERVAL_PRECISION_hasRightNullability() throws SQLException {
    assertThat( "ResultSetMetaData.column...Null... nullability code:",
                rowsMetadata.isNullable( 16 ), equalTo( columnNullable ) );
  }


  ////////////////////////////////////////////////////////////
  // Not (yet) implemented by Drill:
  //
  // #17: CHARACTER_SET_CATALOG:
  // #18: CHARACTER_SET_SCHEMA:
  // #19: CHARACTER_SET_NAME:
  // #20: COLLATION_CATALOG:
  // #21: COLLATION_SCHEMA:
  // #22: COLLATION_NAME:
  // #23: DOMAIN_CATALOG:
  // #24: DOMAIN_SCHEMA:
  // #25: DOMAIN_NAME:
  // #26: UDT_CATALOG:
  // #27: UDT_SCHEMA:
  // #28: UDT_NAME:
  // #29: SCOPE_CATALOG:
  // #30: SCOPE_SCHEMA:
  // #31: SCOPE_NAME:
  // #32: MAXIMUM_CARDINALITY:
  // #33: DTD_IDENTIFIER:
  // #34: IS_SELF_REFERENCING:
  // #35: IS_IDENTITY:
  // #36: IDENTITY_GENERATION:
  // #37: IDENTITY_START:
  // #38: IDENTITY_INCREMENT:
  // #39: IDENTITY_MAXIMUM:
  // #40: IDENTITY_MINIMUM:
  // #41: IDENTITY_CYCLE:
  // #42: IS_GENERATED:
  // #43: GENERATION_EXPRESSION:
  // #44: IS_SYSTEM_TIME_PERIOD_START:
  // #45: IS_SYSTEM_TIME_PERIOD_END:
  // #46: SYSTEM_TIME_PERIOD_TIMESTAMP_GENERATION:
  // #47: IS_UPDATABLE:
  // #48: DECLARED_DATA_TYPE:
  // #49: DECLARED_NUMERIC_PRECISION:
  // #50: DECLARED_NUMERIC_SCALE:

} // class DatabaseMetaGetColumnsDataTest