Package org.apache.hadoop.hive.ql.plan

Examples of org.apache.hadoop.hive.ql.plan.ExprNodeColumnDesc

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      String   internalName = colNames.get(pos);
      String[] colName      = inputRR.reverseLookup(internalName);
      ColumnInfo in = inputRR.get(colName[0], colName[1]);
      outputRR.put(colName[0], colName[1],
                   new ColumnInfo((Integer.valueOf(pos)).toString(), in.getType()));
      col_list.add(new exprNodeColumnDesc(in.getType(), internalName));
    }

    Operator output = putOpInsertMap(OperatorFactory.getAndMakeChild(
      new selectDesc(col_list), new RowSchema(outputRR.getColumnInfos()), input), outputRR);
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  }

  public void testExprNodeColumnEvaluator() throws Throwable {
    try {
      // get a evaluator for a simple field expression
      exprNodeDesc exprDesc = new exprNodeColumnDesc(colaType, "cola");
      ExprNodeEvaluator eval = ExprNodeEvaluatorFactory.get(exprDesc);

      // evaluate on row
      InspectableObject result = new InspectableObject();
      eval.evaluate(r.o, r.oi, result);
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  }

  public void testExprNodeFuncEvaluator() throws Throwable {
    try {
      // get a evaluator for a string concatenation expression
      exprNodeDesc col1desc = new exprNodeColumnDesc(col1Type, "col1");
      exprNodeDesc coladesc = new exprNodeColumnDesc(colaType, "cola");
      exprNodeDesc col11desc = new exprNodeIndexDesc(col1desc, new exprNodeConstantDesc(new Integer(1)));
      exprNodeDesc cola0desc = new exprNodeIndexDesc(coladesc, new exprNodeConstantDesc(new Integer(0)));
      exprNodeDesc func1 = TypeCheckProcFactory.DefaultExprProcessor.getFuncExprNodeDesc("concat", col11desc, cola0desc);
      ExprNodeEvaluator eval = ExprNodeEvaluatorFactory.get(func1);
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  }

  public void testExprNodeConversionEvaluator() throws Throwable {
    try {
      // get a evaluator for a string concatenation expression
      exprNodeDesc col1desc = new exprNodeColumnDesc(col1Type, "col1");
      exprNodeDesc col11desc = new exprNodeIndexDesc(col1desc, new exprNodeConstantDesc(new Integer(1)));
      exprNodeDesc func1 = TypeCheckProcFactory.DefaultExprProcessor.getFuncExprNodeDesc(Double.class.getName(), col11desc);
      ExprNodeEvaluator eval = ExprNodeEvaluatorFactory.get(func1);

      // evaluate on row
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      exprNodeDesc constant2 = new exprNodeConstantDesc(2);
      measureSpeed("concat(col1[1], cola[1])",
          basetimes * 10,
          ExprNodeEvaluatorFactory.get(
              TypeCheckProcFactory.DefaultExprProcessor.getFuncExprNodeDesc("concat",
                  new exprNodeIndexDesc(new exprNodeColumnDesc(col1Type, "col1"), constant1),
                  new exprNodeIndexDesc(new exprNodeColumnDesc(colaType, "cola"), constant1))),
          r,
          "1b");
      measureSpeed("concat(concat(col1[1], cola[1]), col1[2])",
          basetimes * 10,
          ExprNodeEvaluatorFactory.get(
              TypeCheckProcFactory.DefaultExprProcessor.getFuncExprNodeDesc("concat",
                  TypeCheckProcFactory.DefaultExprProcessor.getFuncExprNodeDesc("concat",
                      new exprNodeIndexDesc(new exprNodeColumnDesc(col1Type, "col1"), constant1),
                      new exprNodeIndexDesc(new exprNodeColumnDesc(colaType, "cola"), constant1)),
                  new exprNodeIndexDesc(new exprNodeColumnDesc(col1Type, "col1"), constant2))),
          r,
          "1b2");
      measureSpeed("concat(concat(concat(col1[1], cola[1]), col1[2]), cola[2])",
          basetimes * 10,
          ExprNodeEvaluatorFactory.get(
              TypeCheckProcFactory.DefaultExprProcessor.getFuncExprNodeDesc("concat",
                  TypeCheckProcFactory.DefaultExprProcessor.getFuncExprNodeDesc("concat",
                      TypeCheckProcFactory.DefaultExprProcessor.getFuncExprNodeDesc("concat",
                          new exprNodeIndexDesc(new exprNodeColumnDesc(col1Type, "col1"), constant1),
                          new exprNodeIndexDesc(new exprNodeColumnDesc(colaType, "cola"), constant1)),
                      new exprNodeIndexDesc(new exprNodeColumnDesc(col1Type, "col1"), constant2)),
                  new exprNodeIndexDesc(new exprNodeColumnDesc(colaType, "cola"), constant2))),
          r,
          "1b2c");
     
    } catch (Throwable e) {
      e.printStackTrace();
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    exprNodeDesc desc = null;

    //  If the current subExpression is pre-calculated, as in Group-By etc.
    ColumnInfo colInfo = input.get("", expr.toStringTree());
    if (colInfo != null) {
      desc = new exprNodeColumnDesc(colInfo.getType(), colInfo.getInternalName(),
                                    colInfo.getTabAlias(), colInfo.getIsPartitionCol());
      return desc;
    }   
    return desc;
  }
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            LOG.debug(ErrorMsg.INVALID_TABLE_OR_COLUMN.toString() + ":" + input.toString());
            return null;
          }
        } else {
          // It's a column.
          return new exprNodeColumnDesc(colInfo.getType(), colInfo.getInternalName(),
                                        colInfo.getTabAlias(), colInfo.getIsPartitionCol());
        }
      }

    }
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        if (colInfo == null) {
          ctx.setError(ErrorMsg.INVALID_COLUMN.getMsg(expr.getChild(1)));
          return null;
        }
        return new exprNodeColumnDesc(colInfo.getType(), colInfo.getInternalName(),
                                      colInfo.getTabAlias(), colInfo.getIsPartitionCol());
      }

      // Return nulls for conversion operators
      if (conversionFunctionTextHashMap.keySet().contains(expr.getType()) ||
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          if(oldValueInfo == null)
            continue;
          String outputCol = oldValueInfo.getInternalName();
          if (outputRS.get(key, field) == null) {
            outputColumnNames.add(outputCol);
            exprNodeDesc colDesc = new exprNodeColumnDesc(valueInfo.getType(), valueInfo.getInternalName(),
                                                          valueInfo.getTabAlias(), valueInfo.getIsPartitionCol());
            values.add(colDesc);
            outputRS.put(key, field, new ColumnInfo(outputCol,
                valueInfo.getType(), valueInfo.getTabAlias(), valueInfo.getIsPartitionCol()));
            colExprMap.put(outputCol, colDesc);
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    for (int i = 0; i < outputCols.size(); i++) {
      String internalName = outputCols.get(i);
      String[] nm = inputRR.reverseLookup(internalName);
      ColumnInfo valueInfo = inputRR.get(nm[0], nm[1]);
      exprNodeDesc colDesc = new exprNodeColumnDesc(valueInfo.getType(),
          valueInfo.getInternalName(), nm[0], valueInfo.getIsPartitionCol());
      exprs.add(colDesc);
      outputs.add(internalName);
      outputRS .put(nm[0], nm[1], new ColumnInfo(internalName,
          valueInfo.getType(), nm[0], valueInfo.getIsPartitionCol()));
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