Package org.apache.hadoop.hive.ql.exec

Examples of org.apache.hadoop.hive.ql.exec.UnionOperator

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  public static class MapJoinUnion implements NodeProcessor {

    @Override
    public Object process(Node nd, Stack<Node> stack, NodeProcessorCtx procCtx,
        Object... nodeOutputs) throws SemanticException {
      UnionOperator union = (UnionOperator) nd;
      UnionProcContext ctx = (UnionProcContext) procCtx;

      // find the branch on which this processor was invoked
      int pos = getPositionParent(union, stack);
      UnionParseContext uCtx = ctx.getUnionParseContext(union);
      if (uCtx == null) {
        uCtx = new UnionParseContext(union.getConf().getNumInputs());
      }

      uCtx.setMapJoinSubq(pos, true);
      ctx.setUnionParseContext(union, uCtx);
      return null;
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  public static class UnknownUnion implements NodeProcessor {

    @Override
    public Object process(Node nd, Stack<Node> stack, NodeProcessorCtx procCtx,
        Object... nodeOutputs) throws SemanticException {
      UnionOperator union = (UnionOperator) nd;
      UnionProcContext ctx = (UnionProcContext) procCtx;

      // find the branch on which this processor was invoked
      int pos = getPositionParent(union, stack);
      UnionParseContext uCtx = ctx.getUnionParseContext(union);
      if (uCtx == null) {
        uCtx = new UnionParseContext(union.getConf().getNumInputs());
      }
      int start = stack.size() - 2;
      UnionOperator parentUnionOperator = null;
      while (start >= 0) {
        Operator<? extends Serializable> parent =
            (Operator<? extends Serializable>) stack.get(start);
        if (parent instanceof UnionOperator) {
          parentUnionOperator = (UnionOperator) parent;
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        if (!seenOps.contains(currTopOp)) {
          seenOps.add(currTopOp);
          GenMapRedUtils.setTaskPlan(currAliasId, currTopOp,
              (MapredWork) mapTask.getWork(), false, ctx);
        } else {
          UnionOperator currUnionOp = ctx.getCurrUnionOp();
          if (currUnionOp != null) {
            opTaskMap.put(null, currTask);
            ctx.setCurrTopOp(null);
            GenMapRedUtils.initUnionPlan(ctx, currTask, false);
            return dest;
          }
        }
        // mapTask and currTask should be merged by and join/union operator
        // (e.g., GenMRUnion1j) which has multiple topOps.
        // assert mapTask == currTask : "mapTask.id = " + mapTask.getId()
        // + "; currTask.id = " + currTask.getId();
      }

      return dest;

    }

    UnionOperator currUnionOp = ctx.getCurrUnionOp();

    if (currUnionOp != null) {
      opTaskMap.put(null, currTask);
      GenMapRedUtils.initUnionPlan(ctx, currTask, false);
      return dest;
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   */
  public static void initUnionPlan(GenMRProcContext opProcCtx,
      Task<? extends Serializable> currTask, boolean local)
      throws SemanticException {
    MapredWork plan = (MapredWork) currTask.getWork();
    UnionOperator currUnionOp = opProcCtx.getCurrUnionOp();
    // In case of lateral views followed by a join, the same tree
    // can be traversed more than one
    if (currUnionOp != null) {
      GenMRUnionCtx uCtx = opProcCtx.getUnionTask(currUnionOp);
      assert uCtx != null;
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  public static void joinUnionPlan(GenMRProcContext opProcCtx,
      Task<? extends Serializable> currentUnionTask,
      Task<? extends Serializable> existingTask, boolean local)
      throws SemanticException {
    MapredWork plan = (MapredWork) existingTask.getWork();
    UnionOperator currUnionOp = opProcCtx.getCurrUnionOp();
    assert currUnionOp != null;
    GenMRUnionCtx uCtx = opProcCtx.getUnionTask(currUnionOp);
    assert uCtx != null;

    setUnionPlan(opProcCtx, local, plan, uCtx, true);
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  public static class MapRedUnion implements NodeProcessor {

    @Override
    public Object process(Node nd, Stack<Node> stack, NodeProcessorCtx procCtx,
        Object... nodeOutputs) throws SemanticException {
      UnionOperator union = (UnionOperator) nd;
      UnionProcContext ctx = (UnionProcContext) procCtx;

      // find the branch on which this processor was invoked
      int pos = getPositionParent(union, stack);
      UnionParseContext uCtx = ctx.getUnionParseContext(union);
      if (uCtx == null) {
        uCtx = new UnionParseContext(union.getConf().getNumInputs());
      }

      ctx.setMapOnlySubq(false);
      uCtx.setMapOnlySubq(pos, false);
      uCtx.setRootTask(pos, false);
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  public static class MapUnion implements NodeProcessor {

    @Override
    public Object process(Node nd, Stack<Node> stack, NodeProcessorCtx procCtx,
        Object... nodeOutputs) throws SemanticException {
      UnionOperator union = (UnionOperator) nd;
      UnionProcContext ctx = (UnionProcContext) procCtx;

      // find the branch on which this processor was invoked
      int pos = getPositionParent(union, stack);
      UnionParseContext uCtx = ctx.getUnionParseContext(union);
      if (uCtx == null) {
        uCtx = new UnionParseContext(union.getConf().getNumInputs());
      }

      uCtx.setMapOnlySubq(pos, true);
      uCtx.setRootTask(pos, true);
      ctx.setUnionParseContext(union, uCtx);
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  public static class MapJoinUnion implements NodeProcessor {

    @Override
    public Object process(Node nd, Stack<Node> stack, NodeProcessorCtx procCtx,
        Object... nodeOutputs) throws SemanticException {
      UnionOperator union = (UnionOperator) nd;
      UnionProcContext ctx = (UnionProcContext) procCtx;

      // find the branch on which this processor was invoked
      int pos = getPositionParent(union, stack);
      UnionParseContext uCtx = ctx.getUnionParseContext(union);
      if (uCtx == null) {
        uCtx = new UnionParseContext(union.getConf().getNumInputs());
      }

      uCtx.setMapJoinSubq(pos, true);
      ctx.setUnionParseContext(union, uCtx);
      return null;
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  public static class UnknownUnion implements NodeProcessor {

    @Override
    public Object process(Node nd, Stack<Node> stack, NodeProcessorCtx procCtx,
        Object... nodeOutputs) throws SemanticException {
      UnionOperator union = (UnionOperator) nd;
      UnionProcContext ctx = (UnionProcContext) procCtx;

      // find the branch on which this processor was invoked
      int pos = getPositionParent(union, stack);
      UnionParseContext uCtx = ctx.getUnionParseContext(union);
      if (uCtx == null) {
        uCtx = new UnionParseContext(union.getConf().getNumInputs());
      }

      uCtx.setMapOnlySubq(pos, true);
      uCtx.setRootTask(pos, false);
      ctx.setUnionParseContext(union, uCtx);
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    GenMRProcContext ctx = (GenMRProcContext) opProcCtx;

    // union consisted on a bunch of map-reduce jobs, and it has been split at
    // the union
    Operator<? extends OperatorDesc> reducer = op.getChildOperators().get(0);
    UnionOperator union = Utils.findNode(stack, UnionOperator.class);
    assert union != null;

    Map<Operator<? extends OperatorDesc>, GenMapRedCtx> mapCurrCtx = ctx
        .getMapCurrCtx();
    GenMapRedCtx mapredCtx = mapCurrCtx.get(union);
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Related Classes of org.apache.hadoop.hive.ql.exec.UnionOperator

  • org.apache.hadoop.hive.ql.optimizer.correlation.CorrelationOptimizer$CorrelationNodeProc
  • org.apache.hadoop.hive.ql.optimizer.GenMapRedUtils
  • org.apache.hadoop.hive.ql.optimizer.GenMRFileSink1
  • org.apache.hadoop.hive.ql.optimizer.GenMRRedSink3
  • org.apache.hadoop.hive.ql.optimizer.GenMRUnion1
  • org.apache.hadoop.hive.ql.optimizer.MapJoinFactory$UnionMapJoin
  • org.apache.hadoop.hive.ql.optimizer.unionproc.UnionProcFactory$MapJoinUnion
  • org.apache.hadoop.hive.ql.optimizer.unionproc.UnionProcFactory$MapRedUnion
  • org.apache.hadoop.hive.ql.optimizer.unionproc.UnionProcFactory$MapUnion
  • org.apache.hadoop.hive.ql.optimizer.unionproc.UnionProcFactory$UnionNoProcessFile
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