Examples of UnionParseContext

Examples of org.apache.hadoop.hive.ql.optimizer.unionproc.UnionProcContext.UnionParseContext

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        }
        ctx.setCurrTask(uTask);
      }
    }

    UnionParseContext uPrsCtx = uCtx.getUnionParseContext(union);
    ctx.getMapCurrCtx().put(
        (Operator<? extends OperatorDesc>) union,
        new GenMapRedCtx(ctx.getCurrTask(),
            ctx.getCurrAliasId()));
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Examples of org.apache.hadoop.hive.ql.optimizer.unionproc.UnionProcContext.UnionParseContext

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      mapCurrCtx.put((Operator<? extends OperatorDesc>) nd,
        new GenMapRedCtx(ctx.getCurrTask(),ctx.getCurrAliasId()));
      return null;
    }

    UnionParseContext uPrsCtx = uCtx.getUnionParseContext(union);

    ctx.setCurrUnionOp(union);
    // The plan needs to be broken only if one of the sub-queries involve a
    // map-reduce job
    if (uPrsCtx.allMapOnlySubQ()) {
      return processMapOnlyUnion(union, stack, ctx, uCtx);
    }

    assert uPrsCtx != null;

    Task<? extends Serializable> currTask = ctx.getCurrTask();
    int pos = UnionProcFactory.getPositionParent(union, stack);

    Task<? extends Serializable> uTask = null;
    MapredWork uPlan = null;

    // union is encountered for the first time
    GenMRUnionCtx uCtxTask = ctx.getUnionTask(union);
    if (uCtxTask == null) {
      uPlan = GenMapRedUtils.getMapRedWork(parseCtx);
      uTask = TaskFactory.get(uPlan, parseCtx.getConf());
      uCtxTask = new GenMRUnionCtx(uTask);
      ctx.setUnionTask(union, uCtxTask);
    }
    else {
      uTask = uCtxTask.getUTask();
    }

    // Copy into the current union task plan if
    if (uPrsCtx.getMapOnlySubq(pos) && uPrsCtx.getRootTask(pos)) {
      processSubQueryUnionMerge(ctx, uCtxTask, union, stack);
      if (ctx.getRootTasks().contains(currTask)) {
        ctx.getRootTasks().remove(currTask);
      }
    }
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Examples of org.apache.hadoop.hive.ql.optimizer.unionproc.UnionProcContext.UnionParseContext

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        }
        ctx.setCurrTask(uTask);
      }
    }

    UnionParseContext uPrsCtx = uCtx.getUnionParseContext(union);
    ctx.getMapCurrCtx().put(
        (Operator<? extends OperatorDesc>) union,
        new GenMapRedCtx(ctx.getCurrTask(), ctx.getCurrTopOp(),
            ctx.getCurrAliasId()));
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Examples of org.apache.hadoop.hive.ql.optimizer.unionproc.UnionProcContext.UnionParseContext

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    // Map-only subqueries can be optimized in future to not write to a file in
    // future
    Map<Operator<? extends OperatorDesc>, GenMapRedCtx> mapCurrCtx = ctx.getMapCurrCtx();

    UnionParseContext uPrsCtx = uCtx.getUnionParseContext(union);

    ctx.setCurrUnionOp(union);
    // The plan needs to be broken only if one of the sub-queries involve a
    // map-reduce job
    if (uPrsCtx.allMapOnlySubQ()) {
      return processMapOnlyUnion(union, stack, ctx, uCtx);
    }

    assert uPrsCtx != null;

    Task<? extends Serializable> currTask = ctx.getCurrTask();
    int pos = UnionProcFactory.getPositionParent(union, stack);

    Task<? extends Serializable> uTask = null;
    MapredWork uPlan = null;

    // union is encountered for the first time
    GenMRUnionCtx uCtxTask = ctx.getUnionTask(union);
    if (uCtxTask == null) {
      uCtxTask = new GenMRUnionCtx();
      uPlan = GenMapRedUtils.getMapRedWork(parseCtx);
      uTask = TaskFactory.get(uPlan, parseCtx.getConf());
      uCtxTask.setUTask(uTask);
      ctx.setUnionTask(union, uCtxTask);
    }
    else {
      uTask = uCtxTask.getUTask();
    }

    // Copy into the current union task plan if
    if (uPrsCtx.getMapOnlySubq(pos) && uPrsCtx.getRootTask(pos)) {
      processSubQueryUnionMerge(ctx, uCtxTask, union, stack);
      if (ctx.getRootTasks().contains(currTask)) {
        ctx.getRootTasks().remove(currTask);
      }
    }
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Examples of org.apache.hadoop.hive.ql.optimizer.unionproc.UnionProcContext.UnionParseContext

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      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);
      ctx.setUnionParseContext(union, uCtx);
      return null;
    }
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Examples of org.apache.hadoop.hive.ql.optimizer.unionproc.UnionProcContext.UnionParseContext

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      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);
      return null;
    }
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Examples of org.apache.hadoop.hive.ql.optimizer.unionproc.UnionProcContext.UnionParseContext

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      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 OperatorDesc> parent =
          (Operator<? extends OperatorDesc>) stack.get(start);
        if (parent instanceof UnionOperator) {
          parentUnionOperator = (UnionOperator) parent;
          break;
        }
        start--;
      }
      assert parentUnionOperator != null;

      // default to false
      boolean mapOnly = false;
      boolean rootTask = false;
      UnionParseContext parentUCtx =
          ctx.getUnionParseContext(parentUnionOperator);
      if (parentUCtx != null && parentUCtx.allMapOnlySubQSet()) {
        mapOnly = parentUCtx.allMapOnlySubQ();
        rootTask = parentUCtx.allRootTasks();
      }

      uCtx.setMapOnlySubq(pos, mapOnly);

      uCtx.setRootTask(pos, rootTask);
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Examples of org.apache.hadoop.hive.ql.optimizer.unionproc.UnionProcContext.UnionParseContext

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        }
        pos--;
      }

      UnionProcContext ctx = (UnionProcContext) procCtx;
      UnionParseContext uCtx = ctx.getUnionParseContext(union);

      // No need for this if all sub-queries are map-only queries
      // If all the queries are map-only, anyway the query is most optimized
      if ((uCtx != null) && (uCtx.allMapOnlySubQ())) {
        return null;
      }

      pos++;
      pushOperatorsAboveUnion(union, stack, pos);
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Examples of org.apache.hadoop.hive.ql.optimizer.unionproc.UnionProcContext.UnionParseContext

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  public static void mergeMapJoinUnion(UnionOperator union,
      GenMRProcContext ctx, int pos) throws SemanticException {
    ParseContext parseCtx = ctx.getParseCtx();
    UnionProcContext uCtx = parseCtx.getUCtx();

    UnionParseContext uPrsCtx = uCtx.getUnionParseContext(union);
    assert uPrsCtx != null;

    Task<? extends Serializable> currTask = ctx.getCurrTask();

    GenMRUnionCtx uCtxTask = ctx.getUnionTask(union);
    Task<? extends Serializable> uTask = null;

    union.getParentOperators().get(pos);
    MapredWork uPlan = null;

    // union is encountered for the first time
    if (uCtxTask == null) {
      uCtxTask = new GenMRUnionCtx();
      uPlan = GenMapRedUtils.getMapRedWork(parseCtx.getConf());
      uTask = TaskFactory.get(uPlan, parseCtx.getConf());
      uCtxTask.setUTask(uTask);
      ctx.setUnionTask(union, uCtxTask);
    } else {
      uTask = uCtxTask.getUTask();
      uPlan = (MapredWork) uTask.getWork();
    }

    // If there is a mapjoin at position 'pos'
    if (uPrsCtx.getMapJoinSubq(pos)) {
      GenMRMapJoinCtx mjCtx = ctx.getMapJoinCtx(ctx.getCurrMapJoinOp());
      String taskTmpDir = mjCtx.getTaskTmpDir();
      if (uPlan.getPathToAliases().get(taskTmpDir) == null) {
        uPlan.getPathToAliases().put(taskTmpDir, new ArrayList<String>());
        uPlan.getPathToAliases().get(taskTmpDir).add(taskTmpDir);
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