Package org.apache.hadoop.hive.ql.lib

Examples of org.apache.hadoop.hive.ql.lib.DefaultGraphWalker.startWalking()

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    // Create a list of topop nodes
    ArrayList<Node> topNodes = new ArrayList<Node>();
    topNodes.add(expr);
    HashMap<Node, Object> nodeOutputs = new HashMap<Node, Object>();
    ogw.startWalking(topNodes, nodeOutputs);

    return nodeOutputs;
  }

  /**
 
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    GraphWalker ogw = new DefaultGraphWalker(disp);

    // Create a list of topop nodes
    ArrayList<Node> topNodes = new ArrayList<Node>();
    topNodes.addAll(pctx.getTopOps().values());
    ogw.startWalking(topNodes, null);

    return pctx;
  }

  private NodeProcessor getBucketMapjoinRejectProc(ParseContext pctx) {
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    GraphWalker ogw = new DefaultGraphWalker(disp);

    // Create a list of topop nodes
    List<Node> topNodes = new ArrayList<Node>();
    topNodes.add(topOp);
    ogw.startWalking(topNodes, null);
  }

/**
  * Default procedure for {@link DefaultRuleDispatcher}.
  * @return
 
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    GraphWalker ogw = new DefaultGraphWalker(disp);

    // Create a list of topop nodes
    ArrayList<Node> topNodes = new ArrayList<Node>();
    topNodes.addAll(pctx.getTopOps().values());
    ogw.startWalking(topNodes, null);
    return pctx;
  }

  /**
   * FilterPPR filter processor.
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    GraphWalker ogw = new DefaultGraphWalker(disp);

    // Create a list of topop nodes
    ArrayList<Node> topNodes = new ArrayList<Node>();
    topNodes.addAll(pGraphContext.getTopOps().values());
    ogw.startWalking(topNodes, null);
    return pGraphContext;
  }
 
  class ReduceSinkDeduplicateProcCtx implements NodeProcessorCtx{
    ParseContext pctx;
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    GraphWalker ogw = new DefaultGraphWalker(disp);

    // Create a list of topop nodes
    ArrayList<Node> topNodes = new ArrayList<Node>();
    topNodes.addAll(pctx.getTopOps().values());
    ogw.startWalking(topNodes, null);

    for (PcrOpWalkerCtx.OpToDeleteInfo entry : opToRemove) {
      entry.getParent().removeChildAndAdoptItsChildren(entry.getOperator());
    }
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    List<Node> startNodes = new ArrayList<Node>();
    startNodes.add(pred);

    HashMap<Node, Object> outputMap = new HashMap<Node, Object>();
    egw.startWalking(startNodes, outputMap);
    hasNonPartCols = pprCtx.getHasNonPartCols();

    // Get the exprNodeDesc corresponding to the first start node;
    return (ExprNodeDesc) outputMap.get(pred);
  }
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    List<Node> startNodes = new ArrayList<Node>();
    startNodes.add(pred);

    HashMap<Node, Object> outputMap = new HashMap<Node, Object>();
    egw.startWalking(startNodes, outputMap);

    // Return the wrapper of the root node
    return (NodeInfoWrapper) outputMap.get(pred);
  }
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    GraphWalker ogw = new DefaultGraphWalker(disp);
    ArrayList<Node> topNodes = new ArrayList<Node>();
    topNodes.add(predicate);
    HashMap<Node, Object> nodeOutput = new HashMap<Node, Object>();
    try {
      ogw.startWalking(topNodes, nodeOutput);
    } catch (SemanticException ex) {
      throw new RuntimeException(ex);
    }
    ExprNodeDesc residualPredicate = (ExprNodeDesc) nodeOutput.get(predicate);
    return residualPredicate;
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    GraphWalker ogw = new DefaultGraphWalker(disp);

    // Create a list of topop nodes
    ArrayList<Node> topNodes = new ArrayList<Node>();
    topNodes.addAll(pGraphContext.getTopOps().values());
    ogw.startWalking(topNodes, null);

    return pGraphContext;
  }

}
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