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Error when using interpolated_delta during DST #790

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Countrycoin-de opened this issue Jan 4, 2024 · 1 comment
Open

Error when using interpolated_delta during DST #790

Countrycoin-de opened this issue Jan 4, 2024 · 1 comment
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bug Something isn't working

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@Countrycoin-de
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Relevant system information:

  • OS: Debian GNU/Linux 12
  • PostgreSQL version: PostgreSQL 14.10
  • TimescaleDB: 2.12.2
  • TimescaleDB Toolkit: 1.18.0
  • Installation method: self-hosted

Describe the bug
When using interpolated_delta during DST for DE , an error is received:

grafik

The error only occurs if the parameter "interval" is >= '1 day', so '2 day', '1 month' ... does not work.
The error does NOT occur if "interval" is < '1 day', i.e. '15 min', '1 hour' even '24 hour' or '48 hour' works.

The error only occurs if the entire time series runs over a period, in which the changeover from winter time -> summer time takes place (in spring).

The error does NOT occur during the transition from summer time -> winter time (in the fall).

To Reproduce
My test script:
test_code.txt

My table definition:
table_definition_counters.txt

Some test-data
counter_data.csv

Expected behavior
Should return result instead of an error.
All intervals should be possible, even with any change of time changeover (DST).

Actual behavior
Error is received:
ERROR: unable to add final interpolated point: OrderError

Screenshots
N/A

Additional context
I used the following example:
https://www.timescale.com/forum/t/dear-eon-measuring-deltas-correctly-for-smart-energy-meters/1266/3

Maybe the same/similar to this:
Error when using interpolated_average during DST
#788

@Countrycoin-de Countrycoin-de added the bug Something isn't working label Jan 4, 2024
@dev-francisco-bernardi
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Related to #809

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