Marc Munro <[EMAIL PROTECTED]> writes:
> How about representing null array elements with a special-case cast-like
> null? Something like {::null}
The problem with *any* proposal for let's-spell-NULL-like-this
is that "this" is inevitably a string that is valid as a text
data value. Making the string weirder may reduce the odds of
a failure but the risk is still there, and meanwhile you're making
the null marker less readable. (The above has the additional problem
of being indistinguishable from a sub-array.)
I think we really need something that is rejected as syntactically
invalid by the existing array input parser.
regards, tom lane
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