String tableName = Strings.getClassName(_table);
String schemaName = Strings.getPackageName(_table);
if (schemaName.length() == 0)
schemaName = Schemas.getNewTableSchema(_conf);
SchemaGroup group = new SchemaGroup();
Schema schema = group.addSchema(schemaName);
Table table = schema.addTable(tableName);
_pkColumn = addPrimaryKeyColumn(table);
PrimaryKey pk = table.addPrimaryKey();
pk.addColumn(_pkColumn);