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From Apache Wiki <wikidi...@apache.org>
Subject [Db-derby Wiki] Trivial Update of "OLAPNullOrdering" by ChristianDHeureuse
Date Sat, 21 Jul 2007 19:43:01 GMT
Dear Wiki user,

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The following page has been changed by ChristianDHeureuse:
http://wiki.apache.org/db-derby/OLAPNullOrdering

The comment on the change is:
typo corrected

------------------------------------------------------------------------------
  }
  }}}
  
- (As an aside, I wonder if there once was a time when NULL values sorted low in Derby, rather
than sorting HIGH. The reason I think this might have been true is that the JavaDoc for {{{DataValueDescriptor.compare()}}}
is incorrect, and says that null will be treated as '''less''' than all other values, and
also the code comment in NumberDataType.java is backward. Thirdly, the code in SQLBoolean.java
and in XML.java seems backward, which might be an un-noticed bug because the boolean data
type is not surfaced to users in current Derby, and the XML type is now and not much used
yet?)
+ (As an aside, I wonder if there once was a time when NULL values sorted low in Derby, rather
than sorting HIGH. The reason I think this might have been true is that the JavaDoc for {{{DataValueDescriptor.compare()}}}
is incorrect, and says that null will be treated as '''less''' than all other values, and
also the code comment in NumberDataType.java is backward. Thirdly, the code in SQLBoolean.java
and in XML.java seems backward, which might be an un-noticed bug because the boolean data
type is not surfaced to users in current Derby, and the XML type is new and not much used
yet?)
  
  == Interaction of NULLS FIRST/LAST and ASC/DESC ==
  

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