ExecHash() currently returns a null TupleTableSlot, and a misleading
comment from 1991 claims there is a good reason for this. AFAICS there
isn't and the return value isn't used, so I've changed it to return NULL.

Barring any objections I'll apply this tomorrow.

-Neil


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Neil Conway wrote:
> ExecHash() currently returns a null TupleTableSlot, and a misleading
> comment from 1991 claims there is a good reason for this. AFAICS there
> isn't and the return value isn't used, so I've changed it to return NULL.

Applied.

-Neil

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