Peter Eisentraut <peter_e@gmx.net> writes:
> I'd be quite interested to support some kind of hook to deal with this
> Oracle null issue. It would be a great help for porting projects.
> However, doing this properly is probably more complex and needs further
> thought. I'd suggest writing a type of regression test first for Oracle
> null behavior and then evaluating any kind of hook or hack against that.
AFAIK, the Oracle behavior is just about entirely unrelated to the
parser --- it's a matter of runtime comparison behavior. It is
certainly *not* restricted to literal NULL/'' constants, which is the
only case that a parser hack can deal with.
There's some interesting comments here:
http://stackoverflow.com/questions/203493/why-does-oracle-9i-treat-an-empty-string-as-null
regards, tom lane
