Package org.apache.tajo.catalog

Examples of org.apache.tajo.catalog.TableMeta

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  /**
   * Sort a tuple block and store them into a chunk file
   */
  private Path sortAndStoreChunk(int chunkId, List<Tuple> tupleBlock)
      throws IOException {
    TableMeta meta = CatalogUtil.newTableMeta(StoreType.RAW);
    int rowNum = tupleBlock.size();

    long sortStart = System.currentTimeMillis();
    Collections.sort(tupleBlock, getComparator());
    long sortEnd = System.currentTimeMillis();
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  }

  public void init() throws IOException {
    super.init();

    TableMeta meta;
    if (plan.hasOptions()) {
      meta = CatalogUtil.newTableMeta(plan.getStorageType(), plan.getOptions());
    } else {
      meta = CatalogUtil.newTableMeta(plan.getStorageType());
    }
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    Schema schema = new Schema();
    schema.addColumn("id", Type.INT4);
    schema.addColumn("age", Type.INT8);
    schema.addColumn("description", Type.TEXT);

    TableMeta meta = CatalogUtil.newTableMeta(StoreType.ROWFILE);

    AbstractStorageManager sm = StorageManagerFactory.getStorageManager(conf, new Path(conf.getVar(ConfVars.ROOT_DIR)));

    Path tablePath = new Path("/test");
    Path metaPath = new Path(tablePath, ".meta");
    Path dataPath = new Path(tablePath, "test.tbl");
    FileSystem fs = sm.getFileSystem();
    fs.mkdirs(tablePath);

    FileUtil.writeProto(fs, metaPath, meta.getProto());

    Appender appender = StorageManagerFactory.getStorageManager(conf).getAppender(meta, schema, dataPath);
    appender.enableStats();
    appender.init();

    int tupleNum = 100;
    Tuple tuple;
    Datum stringDatum = DatumFactory.createText("abcdefghijklmnopqrstuvwxyz");
    Set<Integer> idSet = Sets.newHashSet();

    tuple = new VTuple(3);
    long start = System.currentTimeMillis();
    for(int i = 0; i < tupleNum; i++) {
      tuple.put(0, DatumFactory.createInt4(i + 1));
      tuple.put(1, DatumFactory.createInt8(25l));
      tuple.put(2, stringDatum);
      appender.addTuple(tuple);
      idSet.add(i+1);
    }
    appender.close();

    TableStats stat = appender.getStats();
    assertEquals(tupleNum, stat.getNumRows().longValue());

    FileStatus file = fs.getFileStatus(dataPath);
    TableProto proto = (TableProto) FileUtil.loadProto(
        cluster.getDefaultFileSystem(), metaPath, TableProto.getDefaultInstance());
    meta = new TableMeta(proto);
    FileFragment fragment = new FileFragment("test.tbl", dataPath, 0, file.getLen());

    int tupleCnt = 0;
    start = System.currentTimeMillis();
    Scanner scanner = StorageManagerFactory.getStorageManager(conf).getScanner(meta, schema, fragment);
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    Schema schema = new Schema();
    schema.addColumn("id", TajoDataTypes.Type.INT4);
    schema.addColumn("age", TajoDataTypes.Type.INT4);
    schema.addColumn("name", TajoDataTypes.Type.TEXT);

    TableMeta meta = CatalogUtil.newTableMeta(CatalogProtos.StoreType.CSV);

    Tuple[] tuples = new Tuple[4];
    for(int i=0; i < tuples.length; i++) {
      tuples[i] = new VTuple(3);
      tuples[i].put(new Datum[] {
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    Schema schema = new Schema();
    schema.addColumn("key", TajoDataTypes.Type.TEXT);
    schema.addColumn("age", TajoDataTypes.Type.INT4);
    schema.addColumn("name", TajoDataTypes.Type.TEXT);

    TableMeta meta = CatalogUtil.newTableMeta(CatalogProtos.StoreType.CSV);


    Path path = StorageUtil.concatPath(testDir, "testPartitionFile", "table.csv");
    fs.mkdirs(path.getParent());
    Appender appender = StorageManagerFactory.getStorageManager(conf).getAppender(meta, schema, path);
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    loadTable(EMPTY_ORDERS);

  }

  private void loadTable(String tableName) throws ServiceException {
    TableMeta meta = CatalogUtil.newTableMeta(StoreType.CSV);
    meta.putOption(StorageConstants.CSVFILE_DELIMITER, StorageConstants.DEFAULT_FIELD_DELIMITER);

    try {
      tajo.createExternalTable(tableName, getSchema(tableName), new Path(dataDir, tableName), meta);
    } catch (SQLException s) {
      throw new ServiceException(s);
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    if (splitable) {
      Schema schema = new Schema();
      schema.addColumn("id", Type.INT4);
      schema.addColumn("age", Type.INT8);

      TableMeta meta = CatalogUtil.newTableMeta(storeType);
      meta.setOptions(StorageUtil.newPhysicalProperties(storeType));
      Path tablePath = new Path(testDir, "Splitable.data");
      Appender appender = StorageManagerFactory.getStorageManager(conf).getAppender(meta, schema, tablePath);
      appender.enableStats();
      appender.init();
      int tupleNum = 10000;
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    Schema schema = new Schema();
    schema.addColumn("id", Type.INT4);
    schema.addColumn("age", Type.INT8);
    schema.addColumn("score", Type.FLOAT4);

    TableMeta meta = CatalogUtil.newTableMeta(storeType);
    meta.setOptions(StorageUtil.newPhysicalProperties(storeType));
    if (storeType == StoreType.AVRO) {
      meta.putOption(StorageConstants.AVRO_SCHEMA_LITERAL,
                     TEST_PROJECTION_AVRO_SCHEMA);
    }

    Path tablePath = new Path(testDir, "testProjection.data");
    Appender appender = StorageManagerFactory.getStorageManager(conf).getAppender(meta, schema, tablePath);
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    schema.addColumn("col10", Type.BLOB);
    schema.addColumn("col11", Type.INET4);
    schema.addColumn("col12", Type.NULL_TYPE);

    Options options = new Options();
    TableMeta meta = CatalogUtil.newTableMeta(storeType, options);
    meta.setOptions(StorageUtil.newPhysicalProperties(storeType));
    if (storeType == StoreType.AVRO) {
      meta.putOption(StorageConstants.AVRO_SCHEMA_LITERAL,
                     TEST_VARIOUS_TYPES_AVRO_SCHEMA);
    }

    Path tablePath = new Path(testDir, "testVariousTypes.data");
    Appender appender = StorageManagerFactory.getStorageManager(conf).getAppender(meta, schema, tablePath);
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    Schema schema = new Schema();
    schema.addColumn("id", TajoDataTypes.Type.INT4);
    schema.addColumn("age", TajoDataTypes.Type.INT8);

    TableMeta meta = CatalogUtil.newTableMeta(CatalogProtos.StoreType.CSV);
    meta.putOption("compression.codec", BZip2Codec.class.getCanonicalName());

    Path tablePath = new Path(testDir, "SplitCompression");
    Appender appender = StorageManagerFactory.getStorageManager(conf).getAppender(meta, schema, tablePath);
    appender.enableStats();
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Related Classes of org.apache.tajo.catalog.TableMeta

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  • com.google.gson.GsonBuilder
  • org.apache.tajo.benchmark.TPCH
  • org.apache.tajo.catalog.json.TableMetaAdapter
  • org.apache.tajo.catalog.proto.CatalogProtos.TableProtoOrBuilder
  • org.apache.tajo.engine.planner.physical.ExternalSortExec
  • org.apache.tajo.engine.planner.physical.StoreTableExec
  • org.apache.tajo.LocalTajoTestingUtility
  • org.apache.tajo.master.querymaster.Query$QueryCompletedTransition$CreateTableHook
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