Package org.apache.hadoop.hive.ql.index

Examples of org.apache.hadoop.hive.ql.index.HiveIndexQueryContext

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          bestIndexes = indexTypes;
        }
      }

      // rewrite index queries for the chosen index type
      HiveIndexQueryContext queryContext = new HiveIndexQueryContext();
      queryContext.setQueryPartitions(queryPartitions);
      rewriteForIndexes(predicate, bestIndexes, pctx, currentTask, queryContext);
      List<Task<?>> indexTasks = queryContext.getQueryTasks();

      if (indexTasks != null && indexTasks.size() > 0) {
        queryContexts.put(bestIndexes.get(0), queryContext);
      }
    }
    // choose an index rewrite to use
    if (queryContexts.size() > 0) {
      // TODO HIVE-2130 This would be a good place for some sort of cost based choice?
      Index chosenIndex = queryContexts.keySet().iterator().next();

      // modify the parse context to use indexing
      // we need to delay this until we choose one index so that we don't attempt to modify pctx multiple times
      HiveIndexQueryContext queryContext = queryContexts.get(chosenIndex);

      // prepare the map reduce job to use indexing
      MapredWork work = currentTask.getWork();
      work.setInputformat(queryContext.getIndexInputFormat());
      work.setIndexIntermediateFile(queryContext.getIndexIntermediateFile());

      // modify inputs based on index query
      Set<ReadEntity> inputs = pctx.getSemanticInputs();
      inputs.addAll(queryContext.getAdditionalSemanticInputs());
      List<Task<?>> chosenRewrite = queryContext.getQueryTasks();

      // add dependencies so index query runs first
      insertIndexQuery(pctx, context, chosenRewrite);
    }
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        bestIndexes = indexTypes;
      }
    }

    // rewrite index queries for the chosen index type
    HiveIndexQueryContext tmpQueryContext = new HiveIndexQueryContext();
    tmpQueryContext.setQueryPartitions(queryPartitions);
    rewriteForIndexes(predicate, bestIndexes, pctx, currentTask, tmpQueryContext);
    List<Task<?>> indexTasks = tmpQueryContext.getQueryTasks();

    if (indexTasks != null && indexTasks.size() > 0) {
      queryContexts.put(bestIndexes.get(0), tmpQueryContext);
    }
    // choose an index rewrite to use
    if (queryContexts.size() > 0) {
      // TODO HIVE-2130 This would be a good place for some sort of cost based choice?
      Index chosenIndex = queryContexts.keySet().iterator().next();

      // modify the parse context to use indexing
      // we need to delay this until we choose one index so that we don't attempt to modify pctx multiple times
      HiveIndexQueryContext queryContext = queryContexts.get(chosenIndex);

      // prepare the map reduce job to use indexing
      MapredWork work = currentTask.getWork();
      work.setInputformat(queryContext.getIndexInputFormat());
      work.addIndexIntermediateFile(queryContext.getIndexIntermediateFile());
      // modify inputs based on index query
      Set<ReadEntity> inputs = pctx.getSemanticInputs();
      inputs.addAll(queryContext.getAdditionalSemanticInputs());
      List<Task<?>> chosenRewrite = queryContext.getQueryTasks();

      // add dependencies so index query runs first
      insertIndexQuery(pctx, context, chosenRewrite);
    }
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        bestIndexes = indexTypes;
      }
    }

    // rewrite index queries for the chosen index type
    HiveIndexQueryContext tmpQueryContext = new HiveIndexQueryContext();
    tmpQueryContext.setQueryPartitions(queryPartitions);
    rewriteForIndexes(predicate, bestIndexes, pctx, currentTask, tmpQueryContext);
    List<Task<?>> indexTasks = tmpQueryContext.getQueryTasks();

    if (indexTasks != null && indexTasks.size() > 0) {
      queryContexts.put(bestIndexes.get(0), tmpQueryContext);
    }
    // choose an index rewrite to use
    if (queryContexts.size() > 0) {
      // TODO HIVE-2130 This would be a good place for some sort of cost based choice?
      Index chosenIndex = queryContexts.keySet().iterator().next();

      // modify the parse context to use indexing
      // we need to delay this until we choose one index so that we don't attempt to modify pctx multiple times
      HiveIndexQueryContext queryContext = queryContexts.get(chosenIndex);

      // prepare the map reduce job to use indexing
      MapWork work = currentTask.getWork().getMapWork();
      work.setInputformat(queryContext.getIndexInputFormat());
      work.addIndexIntermediateFile(queryContext.getIndexIntermediateFile());
      // modify inputs based on index query
      Set<ReadEntity> inputs = pctx.getSemanticInputs();
      inputs.addAll(queryContext.getAdditionalSemanticInputs());
      List<Task<?>> chosenRewrite = queryContext.getQueryTasks();

      // add dependencies so index query runs first
      insertIndexQuery(pctx, context, chosenRewrite);
    }
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        bestIndexes = indexTypes;
      }
    }

    // rewrite index queries for the chosen index type
    HiveIndexQueryContext tmpQueryContext = new HiveIndexQueryContext();
    tmpQueryContext.setQueryPartitions(queryPartitions);
    rewriteForIndexes(predicate, bestIndexes, pctx, currentTask, tmpQueryContext);
    List<Task<?>> indexTasks = tmpQueryContext.getQueryTasks();

    if (indexTasks != null && indexTasks.size() > 0) {
      queryContexts.put(bestIndexes.get(0), tmpQueryContext);
    }
    // choose an index rewrite to use
    if (queryContexts.size() > 0) {
      // TODO HIVE-2130 This would be a good place for some sort of cost based choice?
      Index chosenIndex = queryContexts.keySet().iterator().next();

      // modify the parse context to use indexing
      // we need to delay this until we choose one index so that we don't attempt to modify pctx multiple times
      HiveIndexQueryContext queryContext = queryContexts.get(chosenIndex);

      // prepare the map reduce job to use indexing
      MapWork work = currentTask.getWork().getMapWork();
      work.setInputformat(queryContext.getIndexInputFormat());
      work.addIndexIntermediateFile(queryContext.getIndexIntermediateFile());
      // modify inputs based on index query
      Set<ReadEntity> inputs = pctx.getSemanticInputs();
      inputs.addAll(queryContext.getAdditionalSemanticInputs());
      List<Task<?>> chosenRewrite = queryContext.getQueryTasks();

      // add dependencies so index query runs first
      insertIndexQuery(pctx, context, chosenRewrite);
    }
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        bestIndexes = indexTypes;
      }
    }

    // rewrite index queries for the chosen index type
    HiveIndexQueryContext tmpQueryContext = new HiveIndexQueryContext();
    tmpQueryContext.setQueryPartitions(queryPartitions);
    rewriteForIndexes(predicate, bestIndexes, pctx, currentTask, tmpQueryContext);
    List<Task<?>> indexTasks = tmpQueryContext.getQueryTasks();

    if (indexTasks != null && indexTasks.size() > 0) {
      queryContexts.put(bestIndexes.get(0), tmpQueryContext);
    }
    // choose an index rewrite to use
    if (queryContexts.size() > 0) {
      // TODO HIVE-2130 This would be a good place for some sort of cost based choice?
      Index chosenIndex = queryContexts.keySet().iterator().next();

      // modify the parse context to use indexing
      // we need to delay this until we choose one index so that we don't attempt to modify pctx multiple times
      HiveIndexQueryContext queryContext = queryContexts.get(chosenIndex);

      // prepare the map reduce job to use indexing
      MapWork work = currentTask.getWork().getMapWork();
      work.setInputformat(queryContext.getIndexInputFormat());
      work.addIndexIntermediateFile(queryContext.getIndexIntermediateFile());
      // modify inputs based on index query
      Set<ReadEntity> inputs = pctx.getSemanticInputs();
      inputs.addAll(queryContext.getAdditionalSemanticInputs());
      List<Task<?>> chosenRewrite = queryContext.getQueryTasks();

      // add dependencies so index query runs first
      insertIndexQuery(pctx, context, chosenRewrite);
    }
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Related Classes of org.apache.hadoop.hive.ql.index.HiveIndexQueryContext

  • org.apache.hadoop.hive.ql.optimizer.physical.index.IndexWhereProcessor
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