Package org.apache.hadoop.hive.ql.plan

Examples of org.apache.hadoop.hive.ql.plan.FetchWork

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    for (Map.Entry<String, Operator<? extends OperatorDesc>> entry : localWork.getAliasToWork()
        .entrySet()) {
      String alias = entry.getKey();
      Operator<? extends OperatorDesc> op = entry.getValue();
      FetchWork fetchWork = localWork.getAliasToFetchWork().get(alias);

      // Add the entry in mapredwork
      currWork.getAliasToWork().put(alias, op);

      PartitionDesc partitionInfo = currWork.getAliasToPartnInfo().get(alias);
      if (fetchWork.getTblDir() != null) {
        currWork.mergeAliasedInput(alias, fetchWork.getTblDir().toUri().toString(), partitionInfo);
      } else {
        for (Path pathDir : fetchWork.getPartDir()) {
          currWork.mergeAliasedInput(alias, pathDir.toUri().toString(), partitionInfo);
        }
      }
    }
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      for (String path : emptyPath) {
        pathToAliases.remove(path);
      }

      // create fetch work
      FetchWork fetchWork = null;
      List<Path> partDir = new ArrayList<Path>();
      List<PartitionDesc> partDesc = new ArrayList<PartitionDesc>();

      for (String tablePath : pathSet) {
        PartitionDesc partitionDesc = newWork.getMapWork().getPathToPartitionInfo().get(tablePath);
        // create fetchwork for non partitioned table
        if (partitionDesc.getPartSpec() == null || partitionDesc.getPartSpec().size() == 0) {
          fetchWork = new FetchWork(new Path(tablePath), partitionDesc.getTableDesc());
          break;
        }
        // if table is partitioned,add partDir and partitionDesc
        partDir.add(new Path(tablePath));
        partDesc.add(partitionDesc);
      }
      // create fetchwork for partitioned table
      if (fetchWork == null) {
        TableDesc table = newWork.getMapWork().getAliasToPartnInfo().get(alias).getTableDesc();
        fetchWork = new FetchWork(partDir, partDesc, table);
      }
      // set alias to fetch work
      newLocalWork.getAliasToFetchWork().put(alias, fetchWork);
    }
    // remove small table ailias from aliasToWork;Avoid concurrent modification
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      localPlan.getAliasToWork().put(alias_id, topOp);
      if (tblDir == null) {
        tblDesc = Utilities.getTableDesc(partsList.getSourceTable());
        localPlan.getAliasToFetchWork().put(
            alias_id,
            new FetchWork(partDir, partDesc, tblDesc));
      } else {
        localPlan.getAliasToFetchWork().put(alias_id,
            new FetchWork(tblDir, tblDesc));
      }
      plan.setMapRedLocalWork(localPlan);
    }
  }
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      }

      assert localPlan.getAliasToWork().get(alias) == null;
      assert localPlan.getAliasToFetchWork().get(alias) == null;
      localPlan.getAliasToWork().put(alias, topOp);
      localPlan.getAliasToFetchWork().put(alias, new FetchWork(new Path(alias), tt_desc));
      plan.setMapRedLocalWork(localPlan);
    }
  }
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    // multiple files in the small table given a file in the big table). The remaining
    // tree will be processed while processing the join.
    // Look at comments in DummyStoreOperator for additional explanation.
    for (Map.Entry<String, FetchWork> entry : aliasToFetchWork.entrySet()) {
      String alias = entry.getKey();
      FetchWork fetchWork = entry.getValue();

      JobConf jobClone = new JobConf(hconf);

      TableScanOperator ts = (TableScanOperator)aliasToWork.get(alias);
      // push down projections
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    return "COLUMNSTATS TASK";
  }

  @Override
  protected void localizeMRTmpFilesImpl(Context ctx) {
    FetchWork fWork = work.getfWork();
    String s = fWork.getTblDir();
    if ((s != null) && ctx.isMRTmpFileURI(s)) {
      fWork.setTblDir(ctx.localizeMRTmpFileURI(s));
    }
    ArrayList<String> ls = fWork.getPartDir();
    if (ls != null) {
      ctx.localizePaths(ls);
    }
  }
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    // multiple files in the small table given a file in the big table). The remaining
    // tree will be processed while processing the join.
    // Look at comments in DummyStoreOperator for additional explanation.
    for (Map.Entry<String, FetchWork> entry : aliasToFetchWork.entrySet()) {
      String alias = entry.getKey();
      FetchWork fetchWork = entry.getValue();

      Operator<? extends OperatorDesc> forwardOp = aliasToWork.get(alias);
      forwardOp.setExecContext(getExecContext());

      JobConf jobClone = cloneJobConf(hconf, forwardOp);
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      localPlan.getAliasToWork().put(alias_id, topOp);
      if (tblDir == null) {
        tblDesc = Utilities.getTableDesc(partsList.getSourceTable());
        localPlan.getAliasToFetchWork().put(
            alias_id,
            new FetchWork(partDir, partDesc, tblDesc));
      } else {
        localPlan.getAliasToFetchWork().put(alias_id,
            new FetchWork(tblDir, tblDesc));
      }
      plan.setMapLocalWork(localPlan);
    }
  }
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      }

      assert localPlan.getAliasToWork().get(alias) == null;
      assert localPlan.getAliasToFetchWork().get(alias) == null;
      localPlan.getAliasToWork().put(alias, topOp);
      localPlan.getAliasToFetchWork().put(alias, new FetchWork(new Path(alias), tt_desc));
      plan.setMapLocalWork(localPlan);
    }
  }
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      if (resultTab == null) {
        String resFileFormat = HiveConf.getVar(conf, HiveConf.ConfVars.HIVEQUERYRESULTFILEFORMAT);
        resultTab = PlanUtils.getDefaultQueryOutputTableDesc(cols, colTypes, resFileFormat);
      }

      FetchWork fetch = new FetchWork(loadFileDesc.getSourcePath(),
                                      resultTab, qb.getParseInfo().getOuterQueryLimit());
      fetch.setSource(pCtx.getFetchSource());
      fetch.setSink(pCtx.getFetchSink());

      pCtx.setFetchTask((FetchTask) TaskFactory.get(fetch, conf));

      // For the FetchTask, the limit optimization requires we fetch all the rows
      // in memory and count how many rows we get. It's not practical if the
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