Tom Lane wrote:
> David Fetter <david@fetter.org> writes:
>
>> Per a question Alexey Parshin asked in the IRC channel, I'm attaching
>> a patch to the GRANT and REVOKE syntax summaries which replaces the
>> misleading word "column" with "parameter." "Column" is misleading
>> because it could be read to imply a column-level GRANT/REVOKE, which
>> we don't have yet.
>>
>
> Apparently it's so misleading that you didn't understand it either.
> The entire *point* of that paragraph is that we don't have the
> feature. This proposed change is surely not an improvement...
>
Maybe removing the entire example would be more helpful. I don't find
it clear to have a command outline in a compatibility block.
> regards, tom lane
>
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> TIP 9: In versions below 8.0, the planner will ignore your desire to
> choose an index scan if your joining column's datatypes do not
> match
>
>