Victor Yegorov writes:
> Could you kindly explain me why the query as it is updates no records?
It's a bug, that's why. See
http://git.postgresql.org/gitweb/?p=postgresql.git;a=commitdiff;h=324577f39bc8738ed0ec24c36c5cb2c2f81ec660
or for 9.2,
http://git.postgresql.org/gitweb/?p=postgresql.git;a=
Greetings.
I've hit a strange issue. This is a simplified setup.
First, run create.sql to get a couple of tables.
Then, run the update query.
Tested on 9.2.6 and 9.3.2.
Now:
- if I remove the UNION ALL part of the inner query, UPDATE works;
- if I move the `raw` subquery into the CTE, UPDATE wor
