$ pg_dump -F d -j 4 -f foo regression
pg_dump: [archiver (db)] query failed: pg_dump: [parallel archiver] query was:
SET TRANSACTION SNAPSHOT '00002130-1'
pg_dump: [archiver (db)] query failed: pg_dump: [archiver (db)] query failed:
pg_dump: [archiver (db)] query failed: $
postmaster log shows:
TRAP: FailedAssertion("!(HistoricSnapshotActive())", File: "snapmgr.c", Line:
355)
TRAP: FailedAssertion("!(HistoricSnapshotActive())", File: "snapmgr.c", Line:
355)
TRAP: FailedAssertion("!(HistoricSnapshotActive())", File: "snapmgr.c", Line:
355)
TRAP: FailedAssertion("!(HistoricSnapshotActive())", File: "snapmgr.c", Line:
355)
LOG: server process (PID 15069) was terminated by signal 6: Aborted
DETAIL: Failed process was running: SET TRANSACTION SNAPSHOT '00002130-1'
LOG: terminating any other active server processes
That Assert appears to have been introduced by commit b89e1510.
regards, tom lane
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