Add regression test for 04ae11f62e643e07c411c4935ea6af46cb112aa9.

Robert Haas <rhaas@postgresql.org>

Commit: 8c1d9d56e9a00680a035b8b333a98ea16b121eb7
Author: Robert Haas <rhaas@postgresql.org>
Date: 2016-06-16T16:00:55Z
Releases: 9.6.0
Add regression test for 04ae11f62e643e07c411c4935ea6af46cb112aa9.

The code in this area needs further revision, and it would be best
not to re-break the things we've already fixed.

Per a gripe from Tom Lane.

Files