Examples of org.apache.pig.impl.logicalLayer.ColumnPruner

    Map<RelationalOperator, RequiredInfo> cachedRequiredInfo = new HashMap<RelationalOperator, RequiredInfo>();
    private Map<LOLoad, RequiredFields> prunedLoaderColumnsMap = new HashMap<LOLoad, RequiredFields>();
    ColumnPruner pruner;
    public PruneColumns(LogicalPlan plan) {
        super(plan);
        pruner = new ColumnPruner(plan);
    }


        StringBuffer message = new StringBuffer();
        if (pruneList.size()!=0)
        {
            
            ColumnPruner columnPruner;
            if (forEach == null)
                columnPruner = new ColumnPruner(mPlan, load, pruneList, 
                    new DependencyOrderWalker<LogicalOperator, LogicalPlan>(mPlan));
            else
                columnPruner = new ColumnPruner(mPlan, forEach, pruneList, 
                        new DependencyOrderWalker<LogicalOperator, LogicalPlan>(mPlan));
            
            columnPruner.visit();


            message.append("Columns pruned for " + load.getAlias() + ": ");
            for (int i=0;i<pruneList.size();i++)
            {
                message.append("$"+pruneList.get(i).second);

Related Classes of org.apache.pig.impl.logicalLayer.ColumnPruner

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