support for PostgreSQL 18 : here is a small patch

[achix]

postgres@smadevnu:~/src/pljava % git diff
diff --git a/pljava-so/src/main/c/VarlenaWrapper.c b/pljava-so/src/main/c/VarlenaWrapper.c
index cb1d9e7a..d36c4da4 100644
--- a/pljava-so/src/main/c/VarlenaWrapper.c
+++ b/pljava-so/src/main/c/VarlenaWrapper.c
@@ -36,6 +36,10 @@
#define GetOldestSnapshot() NULL
#endif

+#if PG_VERSION_NUM >= 180000
+#define GetOldestSnapshot() NULL
+#endif
+
#define _VL_TYPE struct varlena *

#if PG_VERSION_NUM < 140000
postgres@smadevnu:~/src/pljava %

[jcflack]

Hmm. Culprit seems to be postgres/postgres@4d82750. I think probably get_toast_snapshot() for the win.

[df7cb]

Are you planning to do a release supporting PG18? That would be one PG18 TODO list item less on my list.

[jcflack]

I believe the most recent merged pull request #529 should take care of PG18. A test build from the REL1_6_STABLE branch ought to work now.

I always have a bit of internal debate about how early to cut the official release. Maybe when there's an 18 release candidate?

[df7cb]

RC would be very late. How about now? 18 Beta1 is out, that would also allow people to beta-test pljava on 18. Yes, sometimes features get reverted that might break extensions again, or there might be more changes, but that's not the norm.

[jcflack]

Believed resolved in 1.6.10. Sorry for the delay. (On the bright side, also allowed confirming the release works with Java 25.)