- Fix in CegoDistManager::checkKey ( used for verify tableset admin
commend ). Check for foreign key has been redesigned
- Fix in CegoBTreeCursor::getFirst, _pAttrCond has to be checked
for 0, otherwise a core dump may occur ( detected with verify
tableset admin command )
- In CegoViewObject::toChain() the view object reference string has
to return complete information including the tableset. Otherwise,
references to foreign tableset objects with the view will not work
correctly.
- Fix in CegoDistCursor to support multiple view references in a
query ( e.g. select a from v1 where exists select * from v1 ... )
In the past, this might lead to infinite loops, since just the view
select reference was used. Now the reference is cloned.
The usage of clones results in several fixes for the CegoSelect::clone
and underlying clone methods
- The previous problem regarding query cache is a result of the new
introduced select cloning. The extended query id string should solve
the problem
- Fix in CegoSelect::getId, the values of the parent join buffer
have also be added to the query id string, otherwise, nested queries
which references attributes to parent join buffer can not be
distinguished
- Introduced simple selects, e.g. select 1, select sysdate, etc for
select queries without any object access
This might be useful for example for database connection validation queries
Submitted by: Bjoern Lemke <lemke@lemke-it.com>
670f13ad56