@Test
public void dropExistingTableWithIfExists() throws StandardException
{

    String sql = "DROP TABLE IF EXISTS " + DEFAULT_TABLE;
    createTableSimpleGenerateAIS();
    StatementNode node = parser.parseStatement(sql);
    assertTrue(node instanceof DropTableNode);
    TableDDL.dropTable(ddlFunctions, null, DEFAULT_SCHEMA, (DropTableNode)node, null);
}