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c2a7044a51
If a query against an inheritance tree runs concurrently with an ALTER TABLE that's disinheriting one of the tree members, it's possible to get a "could not find inherited attribute" error because after obtaining lock on the removed member, make_inh_translation_list sees that its columns have attinhcount=0 and decides they aren't the columns it's looking for. An ideal fix, perhaps, would avoid including such a just-removed member table in the query at all; but there seems no way to accomplish that without adding expensive catalog rechecks or creating a likelihood of deadlocks. Instead, let's just drop the check on attinhcount. In this way, a query that's included a just-disinherited child will still succeed, which is not a completely unreasonable behavior. This problem has existed for a long time, so back-patch to all supported branches. Also add an isolation test verifying related behaviors. Patch by me; the new isolation test is based on Kyotaro Horiguchi's work. Discussion: https://postgr.es/m/20170626.174612.23936762.horiguchi.kyotaro@lab.ntt.co.jp
64 lines
1.4 KiB
Plaintext
64 lines
1.4 KiB
Plaintext
test: read-write-unique
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test: read-write-unique-2
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test: read-write-unique-3
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test: read-write-unique-4
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test: simple-write-skew
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test: receipt-report
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test: temporal-range-integrity
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test: project-manager
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test: classroom-scheduling
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test: total-cash
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test: referential-integrity
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test: ri-trigger
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test: partial-index
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test: two-ids
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test: multiple-row-versions
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test: index-only-scan
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test: deadlock-simple
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test: deadlock-hard
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test: deadlock-soft
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test: deadlock-soft-2
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test: fk-contention
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test: fk-deadlock
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test: fk-deadlock2
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test: eval-plan-qual
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test: lock-update-delete
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test: lock-update-traversal
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test: insert-conflict-do-nothing
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test: insert-conflict-do-nothing-2
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test: insert-conflict-do-update
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test: insert-conflict-do-update-2
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test: insert-conflict-do-update-3
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test: insert-conflict-toast
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test: delete-abort-savept
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test: delete-abort-savept-2
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test: aborted-keyrevoke
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test: multixact-no-deadlock
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test: multixact-no-forget
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test: lock-committed-update
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test: lock-committed-keyupdate
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test: update-locked-tuple
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test: propagate-lock-delete
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test: tuplelock-conflict
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test: tuplelock-update
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test: freeze-the-dead
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test: nowait
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test: nowait-2
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test: nowait-3
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test: nowait-4
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test: nowait-5
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test: skip-locked
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test: skip-locked-2
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test: skip-locked-3
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test: skip-locked-4
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test: drop-index-concurrently-1
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test: multiple-cic
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test: alter-table-1
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test: alter-table-2
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test: alter-table-3
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test: alter-table-4
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test: create-trigger
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test: async-notify
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test: vacuum-reltuples
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test: timeouts
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