David Rowley <[email protected]> writes:
> On 17 September 2017 at 08:07, Kim Rose Carlsen <[email protected]> wrote:
>> It seems there are some difference in VARCHAR vs TEXT when postgres tries to
>> decide if a LEFT JOIN is useful or not.
> Yeah, it looks like the code to check for distinctness in the subquery
> fails to consider that the join condition may contain RelabelTypes
> instead of plain Vars.
>
> The attached fixes.
Looks like a good fix to me (except for the copied-and-pasted,
not-quite-on-point comment ;-)). Pushed.
regards, tom lane
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