Package org.apache.hadoop.hive.ql.exec

Examples of org.apache.hadoop.hive.ql.exec.ExprNodeEvaluator

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    for(int i=0; i<bigTableExpressions.size(); ++i) {
      ExprNodeDesc desc = bigTableExpressions.get(i);
      VectorExpression vectorExpr = bigTableValueExpressions[i];

      // This is a vectorized aware evaluator
      ExprNodeEvaluator eval = new ExprNodeEvaluator<ExprNodeDesc>(desc) {
        int columnIndex;;
        int writerIndex;

        public ExprNodeEvaluator initVectorExpr(int columnIndex, int writerIndex) {
          this.columnIndex = columnIndex;
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    for(int i=0; i<bigTableExpressions.size(); ++i) {
      ExprNodeDesc desc = bigTableExpressions.get(i);
      VectorExpression vectorExpr = bigTableValueExpressions[i];

      // This is a vectorized aware evaluator
      ExprNodeEvaluator eval = new ExprNodeEvaluator<ExprNodeDesc>(desc) {
        int columnIndex;;
        int writerIndex;

        public ExprNodeEvaluator initVectorExpr(int columnIndex, int writerIndex) {
          this.columnIndex = columnIndex;
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      throws HiveException {
    PTFExpressionDef argDef = new PTFExpressionDef();

    ExprNodeDesc exprNode = semAly.genExprNodeDesc(arg, inpShape.getRr(),
        inpShape.getTypeCheckCtx());
    ExprNodeEvaluator exprEval = WindowingExprNodeEvaluatorFactory.get(llInfo, exprNode);
    ObjectInspector oi = initExprNodeEvaluator(exprEval, exprNode, inpShape);

    argDef.setExpressionTreeString(arg.toStringTree());
    argDef.setExprNode(exprNode);
    argDef.setExprEvaluator(exprEval);
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    if (llFuncExprs != null)
    {
      for (ExprNodeGenericFuncDesc llFuncExpr : llFuncExprs)
      {
        ExprNodeDesc firstArg = llFuncExpr.getChildren().get(0);
        ExprNodeEvaluator dupExprEval = WindowingExprNodeEvaluatorFactory.get(llInfo, firstArg);
        dupExprEval.initialize(inpShape.getOI());
        GenericUDFLeadLag llFn = (GenericUDFLeadLag) llFuncExpr.getGenericUDF();
        llFn.setExprEvaluator(dupExprEval);
      }
    }
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        ArrayList<ObjectInspector> selectListExprOIs = new ArrayList<ObjectInspector>();
        resultExprInfo.resultExprEvals = new ArrayList<ExprNodeEvaluator>();

        for(int i=0 ; i < resultExprInfo.resultExprNodes.size(); i++) {
          ExprNodeDesc selectColumnExprNode =resultExprInfo.resultExprNodes.get(i);
          ExprNodeEvaluator selectColumnExprEval =
              ExprNodeEvaluatorFactory.get(selectColumnExprNode);
          ObjectInspector selectColumnOI = selectColumnExprEval.initialize(selectListInputOI);
          resultExprInfo.resultExprEvals.add(selectColumnExprEval);
          selectListExprOIs.add(selectColumnOI);
        }

        resultExprInfo.resultOI = ObjectInspectorFactory.getStandardStructObjectInspector(
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      symbolExprEvalMap = new HashMap<String, Object[]>();
      int sz = symbolNames.size();
      for(int i=0; i < sz; i++)
      {
        String symbolName = symbolNames.get(i);
        ExprNodeEvaluator symbolExprEval = symbolExprEvals.get(i);
        ObjectInspector symbolExprOI = symbolExprOIs.get(i);
        symbolExprEvalMap.put(symbolName.toLowerCase(),
            new Object[] {symbolExprEval, symbolExprOI});
      }
    }
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        if ( symbolDetails == null )
        {
          throw new SemanticException(String.format("Unknown Symbol %s", symbol));
        }

        ExprNodeEvaluator symbolExprEval = (ExprNodeEvaluator) symbolDetails[0];
        ObjectInspector symbolExprOI = (ObjectInspector) symbolDetails[1];
        SymbolFunction sFn = new Symbol(symbolExprEval, symbolExprOI);

        if ( isStar )
        {
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        String selectColName = expr.getAlias();
        ASTNode selectColumnNode = expr.getExpression();
        ExprNodeDesc selectColumnExprNode =
            ResultExpressionParser.buildExprNode(selectColumnNode,
            selectListInputTypeCheckCtx);
        ExprNodeEvaluator selectColumnExprEval =
            ExprNodeEvaluatorFactory.get(selectColumnExprNode);
        ObjectInspector selectColumnOI = null;
        selectColumnOI = selectColumnExprEval.initialize(selectListInputOI);

        selectColName = getColumnName(selectColName, selectColumnExprNode, i);

        resultExprInfo.resultExprEvals.add(selectColumnExprEval);
        selectListExprOIs.add(selectColumnOI);
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    }
  }

  protected void initialize(PTFExpressionDef eDef, ShapeDetails inpShape) throws HiveException {
    ExprNodeDesc exprNode = eDef.getExprNode();
    ExprNodeEvaluator exprEval = WindowingExprNodeEvaluatorFactory.get(llInfo, exprNode);
    ObjectInspector oi = initExprNodeEvaluator(exprEval, exprNode, inpShape);
    eDef.setExprEvaluator(exprEval);
    eDef.setOI(oi);
  }
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     */
    List<ExprNodeGenericFuncDesc> llFuncExprs = llInfo.getLLFuncExprsInTopExpr(exprNode);
    if (llFuncExprs != null) {
      for (ExprNodeGenericFuncDesc llFuncExpr : llFuncExprs) {
        ExprNodeDesc firstArg = llFuncExpr.getChildren().get(0);
        ExprNodeEvaluator dupExprEval = WindowingExprNodeEvaluatorFactory.get(llInfo, firstArg);
        dupExprEval.initialize(inpShape.getOI());
        GenericUDFLeadLag llFn = (GenericUDFLeadLag) llFuncExpr.getGenericUDF();
        llFn.setExprEvaluator(dupExprEval);
      }
    }

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