pg_upgrade: have pg_upgrade fail for old 9.4 JSONB format
Backpatch through 9.4
Branch
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REL9_4_STABLE
Details
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http://git.postgresql.org/pg/commitdiff/6f1310024d20bdaf54edb1ab212c1428ebb300d4
Modified Files
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contrib/pg_upgrade/check.c | 95 +++++++++++++++++++++++++++++++++++++++
contrib/pg_upgrade/pg_upgrade.h | 5 +++
2 files changed, 100 insertions(+)