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[Bug]: Invalidation log lowest_modified_value > greatest_modified_value
What type of bug is this?
Data corruption, Incorrect result, Unexpected error
What subsystems and features are affected?
Continuous aggregate
What happened?
Hello TimescaleDB team and community, I'm bumping into a case where somehow a continuous aggregate's invalidation log has an entry where lowest_modified_value
>
greatest_modified_value
.
select * from _timescaledb_catalog.continuous_aggs_materialization_invalidation_log where materialization_id=2092;
materialization_id | lowest_modified_value | greatest_modified_value
--------------------+-----------------------+-------------------------
2092 | -9223372036854775808 | 1528446599999999
2092 | 1720018800000000 | 170925119999999999
2092 | 170929439100000000 | 9223372036854775807
lowest_modified_value
= 1720018800000000
(microseconds, Wednesday, July 3, 2024 3:00:00 PM)
greatest_modified_value
= 170925119999999999
(nanoseconds, Monday, June 2, 1975 7:12:00 AM)
We don't tamper/directly modify invalidation log tables either. Any idea what could cause this?
TimescaleDB version affected
2.15.2
PostgreSQL version used
15.7
What operating system did you use?
(Debian 15.7-0+deb12u1) on x86_64-pc-linux-gnu
What installation method did you use?
Docker
What platform did you run on?
Other
Relevant log output and stack trace
No response
How can we reproduce the bug?
Not sure how this can reproduced as we have no idea how this is possible.