Re: speedup COPY TO for partitioned table.

Hi!

First of all, a commit message does not need to contain SQL examples
of what it does. We should provide human-readable explanations and
that's it.

Next, about changes to src/test/regress/sql/copy2.sql. I find the sql
you used to test really unintuitive. How about CREATE TABLE ...
PARTITION OF syntax? It is also one command instead of two (create +
alter). It is also hard to say what partition structure is, because
column names on different partition levels are the same, just order is
switched. Let's change it to something more intuitive too?



--
Best regards,
Kirill Reshke