On Tue, Sep 24, 2019 at 03:25:08PM +0900, Kyotaro Horiguchi wrote: > In 0003, empty string and NULL are not digtinguishable in psql > text output. It'd be better that the regression test checks that > the return is actually NULL using "is NULL" or "\pset null > '<null>'" or something like.
For a patch whose purpose is to check after NULL, I missed to consider that... Thanks! I have just added a "\pset null NULL" because that's less bulky than the other option, and all the results properly show NULL, without any empty strings around. I am not sending a new patch set just for that change though, and the most recent version is here: https://github.com/michaelpq/postgres/tree/objaddr_nulls -- Michael
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