Add support for printing/reading MergeAction nodes

Marina Polyakova <m.polyakova@postgrespro.ru>

From: Marina Polyakova <m.polyakova@postgrespro.ru>

To: pgsql-hackers@postgresql.org

Date: 2018-04-04T15:13:23Z

Lists: pgsql-hackers

Attachments

diff.patch (text/x-diff) patch
regression.diffs (text/x-diff) patch
regression.out (text/plain)

Hello, hackers!

When debugging is enabled for server logging, isolation tests fail 
because there're no corresponding output functions for InsertStmt / 
DeleteStmt / UpdateStmt that are used in the output of the MergeAction 
nodes (see the attached regressions diffs and output). I also attached a 
try that makes the tests pass. Sorry if I missed that it was already 
discussed somewhere.

-- 
Marina Polyakova
Postgres Professional: http://www.postgrespro.com
The Russian Postgres Company

Commits

Improve parse representation for MERGE
- f1464c53804f 11.0 landed