Refuse upgrades from pre-9.0 clusters Commit 695b4a113ab added a dependency on retrieving oldestxid from pg_control, which only exists in 9.0 and onwards, but the check for 8.4 as the oldest version was retained. Since there has been few if any complaints of 8.4 upgrades not working, fix by setting 9.0 as the oldest version supported rather than resurrecting 8.4 support.
Backpatch to all supported versions. Reviewed-by: Tom Lane <t...@sss.pgh.pa.us> Discussion: https://postgr.es/m/1973418.1657040...@sss.pgh.pa.us Backpatch-through: v12 Branch ------ REL_12_STABLE Details ------- https://git.postgresql.org/pg/commitdiff/bcd2be0c2f7e494597ad02a69127c82478369b07 Modified Files -------------- doc/src/sgml/ref/pgupgrade.sgml | 2 +- src/bin/pg_upgrade/check.c | 9 +++++++-- 2 files changed, 8 insertions(+), 3 deletions(-)
