Robert Haas <robertmh...@gmail.com> writes:
> It seems like regardless of this discussion you oughtn't to be able to
> store a NULL into that table column. But maybe I'm just confused.
The system is relying on the not-unreasonable assumption that if it
extracts a column of type X from someplace, what it has is a valid value
of type X. Depending on what we decide about the whole composite-null
mess, maybe we will be forced to abandon that assumption ... but I'm
sure not going to do so until my back is to the wall.
regards, tom lane
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