@Override
  public void contributeRuntimeOperator(
      IHyracksJobBuilder builder,
      JobGenContext context,
      ILogicalOperator op,
      IOperatorSchema propagatedSchema,
      IOperatorSchema[] inputSchemas,
      IOperatorSchema outerPlanSchema)
      throws AlgebricksException {

    RecordDescriptor recDesc =
        JobGenHelper.mkRecordDescriptor(context.getTypeEnvironment(op), propagatedSchema, context);
    int[] primaryKeyFields =
        JobGenHelper.variablesToFieldIndexes(primaryKeyLogicalVars, inputSchemas[0]);

    AqlMetadataProvider metadataProvider = (AqlMetadataProvider) context.getMetadataProvider();
    CommitRuntimeFactory runtime =
        new CommitRuntimeFactory(
            jobId,
            datasetId,
            primaryKeyFields,
            metadataProvider.isTemporaryDatasetWriteJob(),
            metadataProvider.isWriteTransaction());
    builder.contributeMicroOperator(op, runtime, recDesc);
    ILogicalOperator src = op.getInputs().get(0).getValue();
    builder.contributeGraphEdge(src, 0, op, 0);
  }
 @Override
 public void contributeRuntimeOperator(
     IHyracksJobBuilder builder,
     JobGenContext context,
     ILogicalOperator op,
     IOperatorSchema propagatedSchema,
     IOperatorSchema[] inputSchemas,
     IOperatorSchema outerPlanSchema)
     throws AlgebricksException {
   ScriptOperator scriptOp = (ScriptOperator) op;
   IScriptDescription scriptDesc = scriptOp.getScriptDescription();
   if (scriptDesc.getKind() != ScriptKind.STRING_STREAMING) {
     throw new IllegalStateException();
   }
   StringStreamingScriptDescription sssd = (StringStreamingScriptDescription) scriptDesc;
   StringStreamingRuntimeFactory runtime =
       new StringStreamingRuntimeFactory(
           sssd.getCommand(),
           sssd.getPrinterFactories(),
           sssd.getFieldDelimiter(),
           sssd.getParserFactory());
   RecordDescriptor recDesc =
       JobGenHelper.mkRecordDescriptor(context.getTypeEnvironment(op), propagatedSchema, context);
   builder.contributeMicroOperator(scriptOp, runtime, recDesc);
   // and contribute one edge from its child
   ILogicalOperator src = scriptOp.getInputs().get(0).getValue();
   builder.contributeGraphEdge(src, 0, scriptOp, 0);
 }
  @Override
  public void contributeRuntimeOperator(
      IHyracksJobBuilder builder,
      JobGenContext context,
      ILogicalOperator op,
      IOperatorSchema opSchema,
      IOperatorSchema[] inputSchemas,
      IOperatorSchema outerPlanSchema)
      throws AlgebricksException {
    RunningAggregateOperator ragg = (RunningAggregateOperator) op;
    List<LogicalVariable> variables = ragg.getVariables();
    List<Mutable<ILogicalExpression>> expressions = ragg.getExpressions();
    int[] outColumns = new int[variables.size()];
    for (int i = 0; i < outColumns.length; i++) {
      outColumns[i] = opSchema.findVariable(variables.get(i));
    }
    IRunningAggregateEvaluatorFactory[] runningAggFuns =
        new IRunningAggregateEvaluatorFactory[expressions.size()];
    IExpressionRuntimeProvider expressionRuntimeProvider = context.getExpressionRuntimeProvider();
    for (int i = 0; i < runningAggFuns.length; i++) {
      StatefulFunctionCallExpression expr =
          (StatefulFunctionCallExpression) expressions.get(i).getValue();
      runningAggFuns[i] =
          expressionRuntimeProvider.createRunningAggregateFunctionFactory(
              expr,
              context.getTypeEnvironment(op.getInputs().get(0).getValue()),
              inputSchemas,
              context);
    }

    // TODO push projections into the operator
    int[] projectionList = JobGenHelper.projectAllVariables(opSchema);

    RunningAggregateRuntimeFactory runtime =
        new RunningAggregateRuntimeFactory(outColumns, runningAggFuns, projectionList);

    // contribute one Asterix framewriter
    RecordDescriptor recDesc =
        JobGenHelper.mkRecordDescriptor(context.getTypeEnvironment(op), opSchema, context);
    builder.contributeMicroOperator(ragg, runtime, recDesc);
    // and contribute one edge from its child
    ILogicalOperator src = ragg.getInputs().get(0).getValue();
    builder.contributeGraphEdge(src, 0, ragg, 0);
  }
  @Override
  public void contributeRuntimeOperator(
      IHyracksJobBuilder builder,
      JobGenContext context,
      ILogicalOperator op,
      IOperatorSchema propagatedSchema,
      IOperatorSchema[] inputSchemas,
      IOperatorSchema outerPlanSchema)
      throws AlgebricksException {
    IndexInsertDeleteUpsertOperator indexInsertDeleteOp = (IndexInsertDeleteUpsertOperator) op;
    assert indexInsertDeleteOp.getOperation() == Kind.INSERT;
    assert indexInsertDeleteOp.isBulkload();

    IMetadataProvider mp = context.getMetadataProvider();
    IVariableTypeEnvironment typeEnv = context.getTypeEnvironment(op);
    JobSpecification spec = builder.getJobSpec();
    RecordDescriptor inputDesc =
        JobGenHelper.mkRecordDescriptor(
            context.getTypeEnvironment(op.getInputs().get(0).getValue()), inputSchemas[0], context);
    Pair<IOperatorDescriptor, AlgebricksPartitionConstraint> runtimeAndConstraints =
        mp.getIndexInsertRuntime(
            dataSourceIndex,
            propagatedSchema,
            inputSchemas,
            typeEnv,
            primaryKeys,
            secondaryKeys,
            additionalFilteringKeys,
            filterExpr,
            inputDesc,
            context,
            spec,
            true);
    builder.contributeHyracksOperator(indexInsertDeleteOp, runtimeAndConstraints.first);
    builder.contributeAlgebricksPartitionConstraint(
        runtimeAndConstraints.first, runtimeAndConstraints.second);
    ILogicalOperator src = indexInsertDeleteOp.getInputs().get(0).getValue();
    builder.contributeGraphEdge(src, 0, indexInsertDeleteOp, 0);
  }