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

Examples of org.apache.hadoop.hive.ql.optimizer.correlation.CorrelationOptimizer


      transformations.add(new GlobalLimitOptimizer());
    }
    if(HiveConf.getBoolVar(hiveConf, HiveConf.ConfVars.HIVEOPTCORRELATION) &&
        !HiveConf.getBoolVar(hiveConf, HiveConf.ConfVars.HIVEGROUPBYSKEW) &&
        !HiveConf.getBoolVar(hiveConf, HiveConf.ConfVars.HIVE_OPTIMIZE_SKEWJOIN_COMPILETIME)) {
      transformations.add(new CorrelationOptimizer());
    }
    if (HiveConf.getFloatVar(hiveConf, HiveConf.ConfVars.HIVELIMITPUSHDOWNMEMORYUSAGE) > 0) {
      transformations.add(new LimitPushdownOptimizer());
    }
    if(HiveConf.getBoolVar(hiveConf, HiveConf.ConfVars.HIVEOPTIMIZEMETADATAQUERIES)) {
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    }
    if(HiveConf.getBoolVar(hiveConf, HiveConf.ConfVars.HIVEOPTCORRELATION) &&
        !HiveConf.getBoolVar(hiveConf, HiveConf.ConfVars.HIVEGROUPBYSKEW) &&
        !HiveConf.getBoolVar(hiveConf, HiveConf.ConfVars.HIVE_OPTIMIZE_SKEWJOIN_COMPILETIME) &&
        !isTezExecEngine) {
      transformations.add(new CorrelationOptimizer());
    }
    if (HiveConf.getFloatVar(hiveConf, HiveConf.ConfVars.HIVELIMITPUSHDOWNMEMORYUSAGE) > 0) {
      transformations.add(new LimitPushdownOptimizer());
    }
    if(HiveConf.getBoolVar(hiveConf, HiveConf.ConfVars.HIVEOPTIMIZEMETADATAQUERIES)) {
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      transformations.add(new GlobalLimitOptimizer());
    }
    if(HiveConf.getBoolVar(hiveConf, HiveConf.ConfVars.HIVEOPTCORRELATION) &&
        !HiveConf.getBoolVar(hiveConf, HiveConf.ConfVars.HIVEGROUPBYSKEW) &&
        !HiveConf.getBoolVar(hiveConf, HiveConf.ConfVars.HIVE_OPTIMIZE_SKEWJOIN_COMPILETIME)) {
      transformations.add(new CorrelationOptimizer());
    }
    if (HiveConf.getFloatVar(hiveConf, HiveConf.ConfVars.HIVELIMITPUSHDOWNMEMORYUSAGE) > 0) {
      transformations.add(new LimitPushdownOptimizer());
    }
    transformations.add(new SimpleFetchOptimizer())// must be called last
View Full Code Here

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