Re: Query regarding selectDumpableExtension()

On Thu, Oct 27, 2016 at 2:11 AM, amul sul <sulamul@gmail.com> wrote:
> selectDumpableExtension() function skip
> s dump of
> built-in extensions in case of binary-upgrade  only,
> why not in normal
> dump
> ?
> Can't we assume those will already be installed in the target database
> at restore
> ?

There's a comment in dumpExtension() that explains it.
       /*        * In a regular dump, we use IF NOT EXISTS so that there isn't a        * problem if the extension
alreadyexists in the target database;        * this is essential for installed-by-default extensions such as        *
plpgsql.       *        * In binary-upgrade mode, that doesn't work well, so instead we skip        * built-in
extensionsbased on their OIDs; see        * selectDumpableExtension.        */
 

-- 
Robert Haas
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