Craig Ringer <> writes:
> What I'm concerned about is the locking. It looks to me like we're
> causing the user to lock rows that they may not intend to lock, by
> applying a LockRows step *before* the user supplied qual. (I'm going to
> test that tomorrow, it's sleep time in Australia).

The fact that there are two LockRows nodes seems outright broken.
The one at the top of the plan is correctly placed, but how did the
other one get in there?

                        regards, tom lane

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