Zdenek Kotala <[EMAIL PROTECTED]> writes:
> I attached backported pg_lzcompress patch which is already in head for 
> version 
> 8.2 and 8.3.

> Version 8.1 and prior contains more changes in decompress code and they does 
> not 
> contain any check. Shell I backported it as well or it will be better to keep 
> it 
> untouched?

AFAICS the only nontrivial patch in pg_lzcompress.c between 7.4 and 8.2
is my cleanup patch here:
That's been in the tree long enough that I wouldn't have any hesitation
about back-porting it, so that all the supported versions would have
the same lzcompress code.  About the only reason I can see not to do it
is that conceivably some third-party code somewhere might be calling
pglz_compress directly; in which case an API change in a minor release
would be a problem for them.

On the other hand, I remain unconvinced that this problem is severe
enough to justify much backporting work.  AFAIK we've only seen one
occurence of a problem to date.


                        regards, tom lane

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