temporal_tables: fix compile against postgresql 13

As-is the formula can't build against our postgresql.
Indeed, since some of the symbols that it dymnamically links
against got renamed the pre-bottled binary isn't likely to
be functional right now either.

I'm not sure what the long-term future of this formula is
(the last tagged release upstream was from 2017 and we already
have introduced patches for PG11 and PG12 support) but I guess
for now the easiest is to stay on the patching train.  The
upstream git repo did get a flurry of commits in April 2020
so there is still hope of an updated version in the future.

Closes #70936.

Signed-off-by: Sean Molenaar <1484494+SMillerDev@users.noreply.github.com>
Signed-off-by: BrewTestBot <1589480+BrewTestBot@users.noreply.github.com>

Formula/temporal_tables.rb

@@ -4,7 +4,7 @@ class TemporalTables < Formula
   url "https://github.com/arkhipov/temporal_tables/archive/v1.2.0.tar.gz"
   sha256 "e6d1b31a124e8597f61b86f08b6a18168f9cd9da1db77f2a8dd1970b407b7610"
   license "BSD-2-Clause"
-  revision 2
+  revision 3
 
   bottle do
     rebuild 1
@@ -29,6 +29,13 @@ class TemporalTables < Formula
     sha256 "c15d7fa8a4ad7a047304c430e039776f6214a40bcc71f9a9ae627cb5cf73647e"
   end
 
+  # Fix for postgresql 13 compatibility:
+  # https://github.com/arkhipov/temporal_tables/issues/55
+  patch do
+    url "https://github.com/bbernhard/temporal_tables/commit/23284c2a593d3e01f7b4918c0aaa8459de84c4d8.patch?full_index=1"
+    sha256 "c1e63befec23efbeff26492a390264cbc7875eaa3992aa98f3e3a53a9612d0e0"
+  end
+
   def install
     ENV["PG_CONFIG"] = Formula["postgresql"].opt_bin/"pg_config"