Add test cases for indexam operations not currently covered.

Heikki Linnakangas <heikki.linnakangas@iki.fi>

Commit: 88fc71926392115cdc3672807f3903ce43d0ebcf
Author: Heikki Linnakangas <heikki.linnakangas@iki.fi>
Date: 2014-11-19T17:47:43Z
Releases: 9.5.0
Add test cases for indexam operations not currently covered.

That includes VACUUM on GIN, GiST and SP-GiST indexes, and B-tree indexes
large enough to cause page deletions in B-tree. Plus some other special
cases.

After this patch, the regression tests generate all different WAL record
types. Not all branches within the redo functions are covered, but it's a
step forward.

Files