I wrote:
> <[email protected]> writes:
>> pg_proc shows that now() is marked as restricted, but
>> transaction_timestamp() is marked as safe.
> That's certainly silly, because they're equivalent. I should think
> they're both safe. Robert?
... well, they would be if we passed down xactStartTimestamp to parallel
workers, but I can't find any code that does that. In view of the fact that
transaction_timestamp() is marked as parallel-safe, this is a bug in 9.6.
regards, tom lane
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