On 3/24/24 13:58, Thiemo Kellner wrote:
Am 24.03.2024 um 21:50 schrieb Adrian Klaver:
On 3/24/24 13:36, Thiemo Kellner wrote:
It does depending on the order of viewing. Namely if you viewed the 'old' empty MV in the outside session before you dropped/created the 'new' MV and committed the changes.

Something like the viewing session is in a transaction before the (re-)creation of the mv?

The view session is on auto commit. (It's sole purpose to query stuff and not to have explicitly terminate transactions do to syntax errors and so on.)

Autocommit will only affect actions in that session, it will not make the other sessions actions visible. That depends on the other sessions committing actions.

See:

https://www.postgresql.org/docs/current/transaction-iso.html



Feeling quite dumb now. But then, there neither is data visible in the install session.

insert data into TASK_DEPENDENCY⠒V
INSERT 0 34

The above says the data was inserted.

COMMIT
  count
-------
      0


Where and when was the count query run?

(1 row)


Thanks for taking care.

--
Adrian Klaver
adrian.kla...@aklaver.com



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