Commit upgrade_db in the dbserver [skip hazardlib] [demos]
Commit upgrade_db in the dbserver [skip hazardlib] [demos]


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Former-commit-id: e7fdb32bd865ae90528205a11c1e74e0bb449bdf
Former-commit-id: 4a74d370f8dbe8aaf11ef6e02ac0311379e6024b
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine