Method init

fe/src/main/java/org/apache/impala/planner/UnpivotNode.java:68–92

(Analyzer analyzer)

  }

  @Override
  public void init(Analyzer analyzer) {
    for (SlotDescriptor slot : unpivotTableRef_.getDesc().getMaterializedSlots()) {
      Expr e = unpivotTableRef_.getSourceExprMap().get(slot.getId());
      if (e == null) {
        sourceExprs_.add(null);
      } else {
        sourceExprs_.add(
            e.substitute(getChild(0).getOutputSmap(), analyzer, true));
      }
    }
    if (unpivotTableRef_.getUnpivotExprMap() != null) {
      for (Map.Entry<Expr, LiteralExpr> e :
            unpivotTableRef_.getUnpivotExprMap().entrySet()) {
        Expr result = e.getKey().substitute(getChild(0).getOutputSmap(), analyzer, true);
        dataExprs_.add(result);
        headerExprs_.add(e.getValue());
      }
    }

    conjuncts_ = orderConjunctsByCost(conjuncts_);
    computeMemLayout(analyzer);
    createDefaultSmap(analyzer);
    computeStats(analyzer);
  }

  @Override
  protected void toThrift(TPlanNode msg) {