cybertec-postgresql / pg_timetable / 13143031448

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master: 87%

Pull #675

github

[+] switch to `VirtualXID` internally from `TransactionXID`, solves #674

Turned out issuing `txid_current()` at the beginning of every chain
transaction is creating a session that's sits idle in transaction for
the duration of the entire chain. In current case, with a single task
`{kind == PROGRAM}`, that idle transaction doesn't do anything aside
from pin the `xmin` horizon and block vacuum for 6+ hours.
The same issue occurs for SQL tasks that are `Remote` or `Autonomous`.

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