Shigeru Hanada wrote:
>> - Since a rescan is done by rewinding the cursor, is it necessary
>>    to have any other remote isolation level than READ COMMITED?
>>    There is only one query issued per transaction.
> If multiple foreign tables on a foreign server is used in a local
> multiple queries are executed in a remote transaction.  So IMO
> levels are useful even if remote query is executed only once.

Oh, I see. You are right.

Laurenz Albe

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