Package lupos.engine.evaluators

Examples of lupos.engine.evaluators.StreamQueryEvaluator.physicalOptimization()

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      evaluator.getArgs().set("distinct", CommonCoreQueryEvaluator.DISTINCT.HASHSET);
      evaluator.init();

      evaluator.compileQuery(query);
      evaluator.logicalOptimization();
      evaluator.physicalOptimization();
      if (evaluator.getRootNode() instanceof Stream) {
        final Stream stream = (Stream) evaluator.getRootNode();
        stream.addNotifyStreamResult(notifyStreamResult);
        return stream;
      } else {
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      evaluator.getArgs().set("datastructure", Indices.DATA_STRUCT.HASHMAP);
      evaluator.init();
 
      evaluator.compileQuery(sub.getQuery());
      evaluator.logicalOptimization();
      evaluator.physicalOptimization();
      if (evaluator.getRootNode() instanceof Stream) {
        Stream stream = (Stream) evaluator.getRootNode();
        stream.addNotifyStreamResult(notifyStreamResult);
        stream.sendMessage(new StartOfEvaluationMessage());
        return stream;
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      evaluator.getArgs().set("datastructure", Indices.DATA_STRUCT.HASHMAP);
      evaluator.init();
 
      evaluator.compileQuery(sub.getQuery());
      evaluator.logicalOptimization();
      evaluator.physicalOptimization();
      if (evaluator.getRootNode() instanceof Stream) {
        Stream stream = (Stream) evaluator.getRootNode();
        stream.addNotifyStreamResult(notifyStreamResult);
        stream.sendMessage(new StartOfEvaluationMessage());
        return stream;
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