pkgs/by-name/db/dbxml/incorrect-optimization.patch

   1 Patch provided by Lauren Foutz. See:
   2 https://community.oracle.com/thread/4093422
   3
   4 --- dbxml-6.1.4-orig/dbxml/src/dbxml/query/ParentOfChildJoinQP.cpp
   5 +++ dbxml-6.1.4/dbxml/src/dbxml/query/ParentOfChildJoinQP.cpp
   6 @@ -139,28 +139,16 @@ bool ParentOfChildIterator::doJoin(Dynam
   7
   8         // Invarient 4: When ancestorStack_ is empty we can output the
   9         // buffered results_, since any more results will come after them in
  10         // document order.
  11
  12         while(true) {
  13                 context->testInterrupt();
  14
  15 -               /*
  16 -                * If current parent's node level already be larger than
  17 -                * childen's, abandon current parent and move to next one.
  18 -                */
  19 -               if (parents_ != NULL &&
  20 -                   parents_->getNodeLevel() > children_->getNodeLevel()) {
  21 -                       if(!parents_->next(context)) {
  22 -                               delete parents_;
  23 -                               parents_ = 0;
  24 -                       }
  25 -               }
  26 -
  27                 int cmp = parents_ == 0 ? -1 : isDescendantOf(children_, parents_, /*orSelf*/false);
  28                 if(cmp < 0) {
  29                         if(!ancestorStack_.empty()) {
  30                                 // We've found the closest ancestor - is it a parent?
  31                                 if(ancestorStack_.back()->getNodeLevel() == (children_->getNodeLevel() - 1)) {
  32                                         // Maintain invarient 3
  33                                         if(results_.empty() || NodeInfo::compare(results_.back(), ancestorStack_.back()) < 0)
  34                                                 results_.push_back(ancestorStack_.back());