simplehash: Add support for resetting a hashtable's contents.
A hashtable reset just reset the hashtable entries, but does not free
memory.
Author: Andres Freund
Discussion: https://postgr.es/m/20190114180423.ywhdg2iagzvh43we@alap3.anarazel.de
Bug: #15592 #15486
Backpatch: 11, this is a prerequisite for other fixes
Branch
------
master
Details
-------
https://git.postgresql.org/pg/commitdiff/3b632a58e7985c6589dbd0e6c0f32ba007783cfa
Modified Files
--------------
src/include/lib/simplehash.h | 11 +++++++++++
1 file changed, 11 insertions(+)