Andrew Dunstan <[email protected]> writes:
> Er, what?
> with orig_inserts as
> (
> insert into table_1
> ...
> returning *
> ),
> ordered_inserts as
> (
> select * from orig_inserts
> order by ...
> )
> insert into table_2
> select * from ordered_inserts ...;
I'm not exactly following what that proves? It seems like this is still
making a not-guaranteed assumption, which is that the outer INSERT isn't
going to choose to rearrange the order of the rows coming from the CTE.
Strictly speaking, even "SELECT * FROM ordered_inserts" isn't promising
anything about row order.
regards, tom lane
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