Package org.apache.hadoop.hive.ql.exec.vector.expressions.aggregates

Examples of org.apache.hadoop.hive.ql.exec.vector.expressions.aggregates.VectorAggregateExpression

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            (Class<? extends VectorAggregateExpression>) (aggDef[2]);
        try
        {
          Constructor<? extends VectorAggregateExpression> ctor =
              aggClass.getConstructor(VectorExpression.class);
          VectorAggregateExpression aggExpr = ctor.newInstance(
              vectorParams.length > 0 ? vectorParams[0] : null);
          aggExpr.init(desc);
          return aggExpr;
        } catch (Exception e) {
          throw new HiveException("Internal exception for vector aggregate : \"" +
               aggregateName + "\" for type: \"" + inputType + "", e);
        }
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        model.ref(),
        model.memoryAlign());

    aggregatorsFixedSize += model.lengthForObjectArrayOfSize(aggregators.length);
    for(int i=0;i<aggregators.length;++i) {
      VectorAggregateExpression aggregator = aggregators[i];
      aggregatorsFixedSize += aggregator.getAggregationBufferFixedSize();
      if (aggregator.hasVariableSize()) {
        variableSizeAggregators[indexVariableSizes] = i;
        ++indexVariableSizes;
      }
    }
    this.variableSizeAggregators = Arrays.copyOfRange(
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        Class<? extends VectorAggregateExpression> aggClass = aggDef.getAggClass();
        try
        {
          Constructor<? extends VectorAggregateExpression> ctor =
              aggClass.getConstructor(VectorExpression.class);
          VectorAggregateExpression aggExpr = ctor.newInstance(
              vectorParams.length > 0 ? vectorParams[0] : null);
          aggExpr.init(desc);
          return aggExpr;
        } catch (Exception e) {
          throw new HiveException("Internal exception for vector aggregate : \"" +
               aggregateName + "\" for type: \"" + inputType + "", e);
        }
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    return true;
  }

  private boolean aggregatorsOutputIsPrimitive(AggregationDesc aggDesc, boolean isReduce) {
    VectorizationContext vc = new ValidatorVectorizationContext();
    VectorAggregateExpression vectorAggrExpr;
    try {
        vectorAggrExpr = vc.getAggregatorExpression(aggDesc, isReduce);
    } catch (Exception e) {
      // We should have already attempted to vectorize in validateAggregationDesc.
      LOG.info("Vectorization of aggreation should have succeeded ", e);
      return false;
    }

    ObjectInspector outputObjInspector = vectorAggrExpr.getOutputObjectInspector();
    if (outputObjInspector.getCategory() == ObjectInspector.Category.PRIMITIVE) {
      return true;
    }
    return false;
  }
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            (Class<? extends VectorAggregateExpression>) (aggDef[2]);
        try
        {
          Constructor<? extends VectorAggregateExpression> ctor =
              aggClass.getConstructor(VectorExpression.class);
          VectorAggregateExpression aggExpr = ctor.newInstance(
              vectorParams.length > 0 ? vectorParams[0] : null);
          aggExpr.init(desc);
          return aggExpr;
        } catch (Exception e) {
          throw new HiveException("Internal exception for vector aggregate : \"" +
               aggregateName + "\" for type: \"" + inputType + "", e);
        }
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Related Classes of org.apache.hadoop.hive.ql.exec.vector.expressions.aggregates.VectorAggregateExpression

  • org.apache.hadoop.hive.ql.exec.vector.VectorAggregationBufferBatch
  • org.apache.hadoop.hive.ql.exec.vector.VectorizationContext
  • org.apache.hadoop.hive.ql.optimizer.physical.Vectorizer
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