Package org.apache.hadoop.hive.ql.lib

Examples of org.apache.hadoop.hive.ql.lib.Node

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    if(!isNoArgumentMacro) {
      /*
       * Walk down expression to see which arguments are actually used.
       */
      Node expression = (Node) ast.getChild(2);
      PreOrderWalker walker = new PreOrderWalker(new Dispatcher() {
        @Override
        public Object dispatch(Node nd, Stack<Node> stack, Object... nodeOutputs)
            throws SemanticException {
          if(nd instanceof ASTNode) {
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      // The stack contains either ... TS, Filter or
      // ... TS, Filter, Filter with the head of the stack being the rightmost
      // symbol. So we just pop out the two elements from the top and if the
      // second one of them is not a table scan then the operator on the top of
      // the stack is the Table scan operator.
      Node tmp = stack.pop();
      Node tmp2 = stack.pop();
      TableScanOperator top = null;
      Operator<? extends OperatorDesc> pop = null;
      if (tmp2 instanceof TableScanOperator) {
        top = (TableScanOperator) tmp2;
        pop = top;
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    final Set<String> actualColumnNames = new HashSet<String>();
    if(!isNoArgumentMacro) {
      /*
       * Walk down expression to see which arguments are actually used.
       */
      Node expression = (Node) ast.getChild(2);
      PreOrderWalker walker = new PreOrderWalker(new Dispatcher() {
        @Override
        public Object dispatch(Node nd, Stack<Node> stack, Object... nodeOutputs)
            throws SemanticException {
          if(nd instanceof ASTNode) {
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      // The stack contains either ... TS, Filter or
      // ... TS, Filter, Filter with the head of the stack being the rightmost
      // symbol. So we just pop out the two elements from the top and if the
      // second one of them is not a table scan then the operator on the top of
      // the stack is the Table scan operator.
      Node tmp = stack.pop();
      Node tmp2 = stack.pop();
      TableScanOperator top = null;
      Operator<? extends OperatorDesc> pop = null;
      if (tmp2 instanceof TableScanOperator) {
        top = (TableScanOperator) tmp2;
        pop = top;
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Related Classes of org.apache.hadoop.hive.ql.lib.Node

  • org.apache.hadoop.hive.ql.optimizer.pcr.PcrOpProcFactory$FilterPCR
  • org.apache.hadoop.hive.ql.optimizer.ppr.OpProcFactory$FilterPPR
  • org.apache.hadoop.hive.ql.optimizer.PrunerOperatorFactory$FilterPruner
  • org.apache.hadoop.hive.ql.parse.GenTezWorkWalker
  • org.apache.hadoop.hive.ql.parse.MacroSemanticAnalyzer
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