Package org.apache.hadoop.hive.metastore.api

Examples of org.apache.hadoop.hive.metastore.api.FieldSchema

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    assertEquals(0, response.getResponseCode());
    assertNull(response.getErrorMessage());
    Table tbl = msc.getTable(MetaStoreUtils.DEFAULT_DATABASE_NAME, tblName);
    List<FieldSchema> cols = tbl.getSd().getCols();
    assertEquals(3, cols.size());
    assertTrue(cols.get(0).equals(new FieldSchema("a", "int", "from deserializer")));
    assertTrue(cols.get(1).equals(new FieldSchema("c", "string", "from deserializer")));
    assertTrue(cols.get(2).equals(new FieldSchema("d", "tinyint", null)));
    howlDriver.run("drop table junit_sem_analysis");
  }
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      objList.add("strvalue" + i);
      writeRecords.add(new DefaultHowlRecord(objList));
    }

    partitionColumns = new ArrayList<HowlFieldSchema>();
    partitionColumns.add(HowlSchemaUtils.getHowlFieldSchema(new FieldSchema("c1", Constants.INT_TYPE_NAME, "")));
    partitionColumns.add(HowlSchemaUtils.getHowlFieldSchema(new FieldSchema("c2", Constants.STRING_TYPE_NAME, "")));
  }
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  }

  @Override
  protected List<FieldSchema> getTableColumns() {
    List<FieldSchema> fields = new ArrayList<FieldSchema>();
    fields.add(new FieldSchema("c1", Constants.INT_TYPE_NAME, ""));
    fields.add(new FieldSchema("c2", Constants.STRING_TYPE_NAME, ""));
    return fields;
  }
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  private Type getType(MType mtype) {
    List<FieldSchema> fields = new ArrayList<FieldSchema>();
    if (mtype.getFields() != null) {
      for (MFieldSchema field : mtype.getFields()) {
        fields.add(new FieldSchema(field.getName(), field.getType(), field
            .getComment()));
      }
    }
    Type ret = new Type();
    ret.setName(mtype.getName());
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  private List<FieldSchema> convertToFieldSchemas(List<MFieldSchema> mkeys) {
    List<FieldSchema> keys = null;
    if (mkeys != null) {
      keys = new ArrayList<FieldSchema>(mkeys.size());
      for (MFieldSchema part : mkeys) {
        keys.add(new FieldSchema(part.getName(), part.getType(), part
            .getComment()));
      }
    }
    return keys;
  }
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      objList.add("strvalue" + i);
      writeRecords.add(new DefaultHowlRecord(objList));
    }

    partitionColumns = new ArrayList<HowlFieldSchema>();
    partitionColumns.add(HowlSchemaUtils.getHowlFieldSchema(new FieldSchema("c1", Constants.INT_TYPE_NAME, "")));
    partitionColumns.add(HowlSchemaUtils.getHowlFieldSchema(new FieldSchema("c2", Constants.STRING_TYPE_NAME, "")));
  }
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  @Override
  protected List<FieldSchema> getPartitionKeys() {
    List<FieldSchema> fields = new ArrayList<FieldSchema>();
    fields.add(new FieldSchema("PaRT1", Constants.STRING_TYPE_NAME, ""));
    return fields;
  }
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  }

  @Override
  protected List<FieldSchema> getTableColumns() {
    List<FieldSchema> fields = new ArrayList<FieldSchema>();
    fields.add(new FieldSchema("c1", Constants.INT_TYPE_NAME, ""));
    fields.add(new FieldSchema("c2", Constants.STRING_TYPE_NAME, ""));
    return fields;
  }
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    HowlSchema tableSchema = getTableSchema();

    assertEquals(3, tableSchema.getFields().size());

    //Update partition schema to have 3 fields
    partitionColumns.add(HowlSchemaUtils.getHowlFieldSchema(new FieldSchema("c3", Constants.STRING_TYPE_NAME, "")));

    writeRecords = new ArrayList<HowlRecord>();

    for(int i = 0;i < 20;i++) {
      List<Object> objList = new ArrayList<Object>();

      objList.add(i);
      objList.add("strvalue" + i);
      objList.add("str2value" + i);

      writeRecords.add(new DefaultHowlRecord(objList));
    }

    Map<String, String> partitionMap = new HashMap<String, String>();
    partitionMap.put("part1", "p1value5");

    runMRCreate(partitionMap, partitionColumns, writeRecords, 10);

    tableSchema = getTableSchema();

    //assert that c3 has got added to table schema
    assertEquals(4, tableSchema.getFields().size());
    assertEquals("c1", tableSchema.getFields().get(0).getName());
    assertEquals("c2", tableSchema.getFields().get(1).getName());
    assertEquals("c3", tableSchema.getFields().get(2).getName());
    assertEquals("part1", tableSchema.getFields().get(3).getName());

    //Test that changing column data type fails
    partitionMap.clear();
    partitionMap.put("part1", "p1value6");

    partitionColumns = new ArrayList<HowlFieldSchema>();
    partitionColumns.add(HowlSchemaUtils.getHowlFieldSchema(new FieldSchema("c1", Constants.INT_TYPE_NAME, "")));
    partitionColumns.add(HowlSchemaUtils.getHowlFieldSchema(new FieldSchema("c2", Constants.INT_TYPE_NAME, "")));

    IOException exc = null;
    try {
      runMRCreate(partitionMap, partitionColumns, writeRecords, 20);
    } catch(IOException e) {
      exc = e;
    }

    assertTrue(exc != null);
    assertTrue(exc instanceof HowlException);
    assertEquals(ErrorType.ERROR_SCHEMA_TYPE_MISMATCH, ((HowlException) exc).getErrorType());

    //Test that partition key is not allowed in data
    partitionColumns = new ArrayList<HowlFieldSchema>();
    partitionColumns.add(HowlSchemaUtils.getHowlFieldSchema(new FieldSchema("c1", Constants.INT_TYPE_NAME, "")));
    partitionColumns.add(HowlSchemaUtils.getHowlFieldSchema(new FieldSchema("c2", Constants.STRING_TYPE_NAME, "")));
    partitionColumns.add(HowlSchemaUtils.getHowlFieldSchema(new FieldSchema("c3", Constants.STRING_TYPE_NAME, "")));
    partitionColumns.add(HowlSchemaUtils.getHowlFieldSchema(new FieldSchema("part1", Constants.STRING_TYPE_NAME, "")));

    List<HowlRecord> recordsContainingPartitionCols = new ArrayList<HowlRecord>(20);
    for(int i = 0;i < 20;i++) {
      List<Object> objList = new ArrayList<Object>();
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    HowlSchema tableSchema = getTableSchema();

    assertEquals(4, tableSchema.getFields().size());

    partitionColumns = new ArrayList<HowlFieldSchema>();
    partitionColumns.add(HowlSchemaUtils.getHowlFieldSchema(new FieldSchema("c1", Constants.INT_TYPE_NAME, "")));
    partitionColumns.add(HowlSchemaUtils.getHowlFieldSchema(new FieldSchema("c3", Constants.STRING_TYPE_NAME, "")));
    partitionColumns.add(HowlSchemaUtils.getHowlFieldSchema(new FieldSchema("c2", Constants.STRING_TYPE_NAME, "")));


    writeRecords = new ArrayList<HowlRecord>();

    for(int i = 0;i < 10;i++) {
      List<Object> objList = new ArrayList<Object>();

      objList.add(i);
      objList.add("co strvalue" + i);
      objList.add("co str2value" + i);

      writeRecords.add(new DefaultHowlRecord(objList));
    }

    Map<String, String> partitionMap = new HashMap<String, String>();
    partitionMap.put("part1", "p1value8");


    Exception exc = null;
    try {
      runMRCreate(partitionMap, partitionColumns, writeRecords, 10);
    } catch(IOException e) {
      exc = e;
    }

    assertTrue(exc != null);
    assertTrue(exc instanceof HowlException);
    assertEquals(ErrorType.ERROR_SCHEMA_COLUMN_MISMATCH, ((HowlException) exc).getErrorType());


    partitionColumns = new ArrayList<HowlFieldSchema>();
    partitionColumns.add(HowlSchemaUtils.getHowlFieldSchema(new FieldSchema("c1", Constants.INT_TYPE_NAME, "")));
    partitionColumns.add(HowlSchemaUtils.getHowlFieldSchema(new FieldSchema("c2", Constants.STRING_TYPE_NAME, "")));

    writeRecords = new ArrayList<HowlRecord>();

    for(int i = 0;i < 10;i++) {
      List<Object> objList = new ArrayList<Object>();
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