Package org.apache.drill.exec.record

Examples of org.apache.drill.exec.record.MaterializedField

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      final LogicalExpression expr = ExpressionTreeMaterializer.materialize(ne.getExpr(), incomingBuild, collector, context.getFunctionRegistry());
      if(collector.hasErrors()) throw new SchemaChangeException("Failure while materializing expression. " + collector.toErrorString());
      if (expr == null) continue;
      keyExprsBuild[i] = expr;
     
      final MaterializedField outputField = MaterializedField.create(ne.getRef(), expr.getMajorType());
      // create a type-specific ValueVector for this key
      ValueVector vv = TypeHelper.getNewVector(outputField, allocator);
      vv.allocateNew();
      htKeyFieldIds[i] = htContainerOrig.add(vv);
     
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    }
  }

  @Override
  public void setup(OutputMutator output) throws ExecutionSetupException {
    MaterializedField field = MaterializedField.create(ref, Types.repeated(TypeProtos.MinorType.VARCHAR));
    try {
      vector = output.addField(field, RepeatedVarCharVector.class);
    } catch (SchemaChangeException e) {
      throw new ExecutionSetupException(e);
    }
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    try {
      // Add Vectors to output in the order specified when creating reader
      for (SchemaPath column : getColumns()) {
        if (column.equals(ROW_KEY_PATH)) {
          MaterializedField field = MaterializedField.create(column, ROW_KEY_TYPE);
          rowKeyVector = outputMutator.addField(field, VarBinaryVector.class);
        } else {
          getOrCreateFamilyVector(column.getRootSegment().getPath(), false);
        }
      }
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  private MapVector getOrCreateFamilyVector(String familyName, boolean allocateOnCreate) {
    try {
      MapVector v = familyVectorMap.get(familyName);
      if(v == null) {
        SchemaPath column = SchemaPath.getSimplePath(familyName);
        MaterializedField field = MaterializedField.create(column, COLUMN_FAMILY_TYPE);
        v = outputMutator.addField(field, MapVector.class);
        if (allocateOnCreate) {
          v.allocateNew();
        }
        getColumns().add(column);
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  @Override
  public void setup(OutputMutator output) throws ExecutionSetupException {
    try {
      for (int i = 0; i < selectedColumnNames.size(); i++) {
        MajorType type = Types.optional(getMinorTypeFromHiveTypeInfo(selectedColumnTypes.get(i)));
        MaterializedField field = MaterializedField.create(SchemaPath.getSimplePath(selectedColumnNames.get(i)), type);
        Class vvClass = TypeHelper.getValueVectorClass(type.getMinorType(), type.getMode());
        vectors.add(output.addField(field, vvClass));
      }

      for (int i = 0; i < selectedPartitionNames.size(); i++) {
        MajorType type = Types.required(getMinorTypeFromHiveTypeInfo(selectedPartitionTypes.get(i)));
        MaterializedField field = MaterializedField.create(SchemaPath.getSimplePath(selectedPartitionNames.get(i)), type);
        Class vvClass = TypeHelper.getValueVectorClass(field.getType().getMinorType(), field.getDataMode());
        pVectors.add(output.addField(field, vvClass));
      }
    } catch(SchemaChangeException e) {
      throw new ExecutionSetupException(e);
    }
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    try {
      // Add Vectors to output in the order specified when creating reader
      for (SchemaPath column : getColumns()) {
        if (column.equals(ROW_KEY_PATH)) {
          MaterializedField field = MaterializedField.create(column, ROW_KEY_TYPE);
          rowKeyVector = outputMutator.addField(field, VarBinaryVector.class);
        } else {
          getOrCreateFamilyVector(column.getRootSegment().getPath(), false);
        }
      }
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  private MapVector getOrCreateFamilyVector(String familyName, boolean allocateOnCreate) {
    try {
      MapVector v = familyVectorMap.get(familyName);
      if(v == null) {
        SchemaPath column = SchemaPath.getSimplePath(familyName);
        MaterializedField field = MaterializedField.create(column, COLUMN_FAMILY_TYPE);
        v = outputMutator.addField(field, MapVector.class);
        if (allocateOnCreate) {
          v.allocateNew();
        }
        getColumns().add(column);
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      logger.debug("reading batch with " + loader.getRecordCount() + " rows, total read so far " + totalRecords);
      totalRecords += loader.getRecordCount();
      for (VectorWrapper w : loader) {
        String field = w.getField().toExpr();
        if ( ! combinedVectors.containsKey(field)) {
          MaterializedField mf = w.getField();
          ValueVector[] vvList = (ValueVector[]) Array.newInstance(mf.getValueClass(), 1);
          vvList[0] = w.getValueVector();
          combinedVectors.put(mf.getPath().toExpr(), new HyperVectorValueIterator(mf, new HyperVectorWrapper(mf,
              vvList)));
        } else {
          combinedVectors.get(field).hyperVector.addVector(w.getValueVector());
        }
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  public void updateColumnMetaData(String catalogName, String schemaName, String tableName, BatchSchema schema){

    columns = new ColumnMetaData[schema.getFieldCount()];
    for(int i = 0; i < schema.getFieldCount(); i++){
      MaterializedField f = schema.getColumn(i);
      MajorType t = f.getType();
      ColumnMetaData col = new ColumnMetaData( //
          i, // ordinal
          false, // autoIncrement
          true, // caseSensitive
          false, // searchable
          false, // currency
          f.getDataMode() == DataMode.OPTIONAL ? ResultSetMetaData.columnNullable : ResultSetMetaData.columnNoNulls, //nullability
          !Types.isUnSigned(t), // signed
          10, // display size.
          f.getAsSchemaPath().getRootSegment().getPath(), // label
          f.getAsSchemaPath().getRootSegment().getPath(), // columnname
          schemaName, // schemaname
          t.hasPrecision() ? t.getPrecision() : 0, // precision
          t.hasScale() ? t.getScale() : 0, // scale
          null, // tablename is null so sqlline doesn't try to retrieve primary keys.
          catalogName, // catalogname
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    if (showHeader) {
      System.out.println(getBatchMetaInfo(vcSerializable).toString());

      System.out.println("Schema Information");
      for (VectorWrapper w : vectorContainer) {
        MaterializedField field = w.getValueVector().getField();
        System.out.println (String.format("name : %s, minor_type : %s, data_mode : %s",
                                          field.toExpr(),
                                          field.getType().getMinorType().toString(),
                                          field.isNullable() ? "nullable":"non-nullable"
                          ));
      }
    }

    /* show the contents in the batch */
 
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Related Classes of org.apache.drill.exec.record.MaterializedField

  • org.apache.drill.common.expression.PathSegment
  • org.apache.drill.common.expression.SchemaPath
  • org.apache.drill.common.types.TypeProtos.DataMode
  • org.apache.drill.common.types.TypeProtos.MajorType
  • org.apache.drill.exec.cache.TestCacheSerialization
  • org.apache.drill.exec.cache.TestWriteToDisk
  • org.apache.drill.exec.cache.VectorAccessibleSerializable
  • org.apache.drill.exec.client.DumpCat
  • org.apache.drill.exec.expr.ExpressionInterpreterTest
  • org.apache.drill.exec.expr.TypeHelper
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