Package org.apache.hadoop.hive.ql.optimizer.optiq.translator

Examples of org.apache.hadoop.hive.ql.optimizer.optiq.translator.RexNodeConverter.convert()

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      final HashMap<String, Integer> rexNodeToPosMap = new HashMap<String, Integer>();
      final BitSet groupSet = new BitSet();
      Integer gbIndx = 0;
      RexNode rnd;
      for (ExprNodeDesc key : gbExprs) {
        rnd = converter.convert(key);
        gbChildProjLst.add(rnd);
        groupSet.set(gbIndx);
        rexNodeToPosMap.put(rnd.toString(), gbIndx);
        gbIndx++;
      }
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          ExprNodeDesc obExprNDesc = astToExprNDescMap.get(obASTExpr.getChild(0));
          if (obExprNDesc == null)
            throw new SemanticException("Invalid order by expression: " + obASTExpr.toString());

          // 2.2 Convert ExprNode to RexNode
          rnd = converter.convert(obExprNDesc);

          // 2.3 Determine the index of ob expr in child schema
          // NOTE: Optiq can not take compound exprs in OB without it being
          // present in the child (& hence we add a child Project Rel)
          if (rnd instanceof RexInputRef) {
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            posMap, 0, false);
        Builder<RexNode> optiqAggFnArgsBldr = ImmutableList.<RexNode> builder();
        Builder<RelDataType> optiqAggFnArgsTypeBldr = ImmutableList.<RelDataType> builder();
        RexNode rexNd = null;
        for (int i = 0; i < hiveAggInfo.m_aggParams.size(); i++) {
          optiqAggFnArgsBldr.add(converter.convert(hiveAggInfo.m_aggParams.get(i)));
          optiqAggFnArgsTypeBldr.add(TypeConverter.convert(hiveAggInfo.m_aggParams.get(i)
              .getTypeInfo(), this.cluster.getTypeFactory()));
        }
        ImmutableList<RexNode> optiqAggFnArgs = optiqAggFnArgsBldr.build();
        ImmutableList<RelDataType> optiqAggFnArgsType = optiqAggFnArgsTypeBldr.build();
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      // 7. Convert Hive projections to Optiq
      List<RexNode> optiqColLst = new ArrayList<RexNode>();
      RexNodeConverter rexNodeConv = new RexNodeConverter(cluster, srcRel.getRowType(),
          buildHiveColNameToInputPosMap(col_list, inputRR), 0, false);
      for (ExprNodeDesc colExpr : col_list) {
        optiqColLst.add(rexNodeConv.convert(colExpr));
      }

      // 8. Build Optiq Rel
      RelNode selRel = genSelectRelNode(optiqColLst, out_rwsch, srcRel);
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