Package org.apache.hadoop.hive.ql.optimizer

Examples of org.apache.hadoop.hive.ql.optimizer.Optimizer.optimize()

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    }

    Optimizer optm = new Optimizer();
    optm.setPctx(pCtx);
    optm.initialize(conf);
    pCtx = optm.optimize();

    FetchTask origFetchTask = pCtx.getFetchTask();

    if (LOG.isDebugEnabled()) {
      LOG.debug("After logical optimization\n" + Operator.toString(pCtx.getTopOps().values()));
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                                         ctx, idToTableNameMap, destTableId, uCtx, listMapJoinOpsNoReducer);
 
    Optimizer optm = new Optimizer();
    optm.setPctx(pCtx);
    optm.initialize(conf);
    pCtx = optm.optimize();
    init(pCtx);
    qb = pCtx.getQB();
   
    // Do any partition pruning using ASTPartitionPruner
    genPartitionPruners(qb);
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    }

    Optimizer optm = new Optimizer();
    optm.setPctx(pCtx);
    optm.initialize(conf);
    pCtx = optm.optimize();
   
    FetchTask origFetchTask = pCtx.getFetchTask();

    if (LOG.isDebugEnabled()) {
      LOG.debug("After logical optimization\n" + Operator.toString(pCtx.getTopOps().values()));
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    }

    Optimizer optm = new Optimizer();
    optm.setPctx(pCtx);
    optm.initialize(conf);
    pCtx = optm.optimize();

    if (LOG.isDebugEnabled()) {
      LOG.debug("After logical optimization\n" + Operator.toString(pCtx.getTopOps().values()));
    }
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    }

    Optimizer optm = new Optimizer();
    optm.setPctx(pCtx);
    optm.initialize(conf);
    pCtx = optm.optimize();

    if (LOG.isDebugEnabled()) {
      LOG.debug("\n" + Operator.toString(pCtx.getTopOps().values()));
    }
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        opToSamplePruner);

    Optimizer optm = new Optimizer();
    optm.setPctx(pCtx);
    optm.initialize(conf);
    pCtx = optm.optimize();
    init(pCtx);
    qb = pCtx.getQB();

    // At this point we have the complete operator tree
    // from which we want to find the reduce operator
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