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Bug #7631

closed

Timestamp bounds in event search work badly with timezones

Added by Pavel Kácha over 1 year ago. Updated over 1 year ago.

Status:
Closed
Priority:
High
Category:
Development - GUI
Target version:
Start date:
02/24/2023
Due date:
% Done:

100%

Estimated time:
To be discussed:
No

Description

When user timezone is Europe/Prague, search results are 1 or 2 hours off. Most probably wrongly (or not) interpreted timezone.


Files

screen-mentat-time-bug.png (111 KB) screen-mentat-time-bug.png Pavel Kácha, 02/24/2023 05:56 PM
Actions #1

Updated by Rajmund Hruška over 1 year ago

  • Status changed from New to In Progress

I think I know where is the issue here.

What seemed strange to me is that no matter in what timezone the user is, the results are always one hour off. I checked the query:

SELECT * FROM events AS "_mentatq(148_wnbqzt)_" WHERE "detecttime" >= '2023-03-07T02:59:55+00:00'::timestamptz AND "detecttime" <= '2023-03-07T03:00:00+00:00'::timestamptz ORDER BY "detecttime" DESC LIMIT 100

and that's when I realised that the issue is in this query. If the query has timestamp instead of timestamptz or 2023-03-07T02:59:55+01:00 instead of 2023-03-07T02:59:55+00:00, we get the correct result. The timezone in Postgresql is set to localtime.

I don't know how to change the query yet.

Actions #2

Updated by Rajmund Hruška over 1 year ago

The other option is to set the timezone in Postgresql to UTC, but I am not sure of the consequences.

Actions #3

Updated by Rajmund Hruška over 1 year ago

  • Assignee set to Rajmund Hruška
Actions #4

Updated by Rajmund Hruška over 1 year ago

  • Status changed from In Progress to Resolved
  • Target version changed from Backlog to 2.11
  • % Done changed from 0 to 100

It should be fixed in 94e0e44f.

Actions #5

Updated by Rajmund Hruška over 1 year ago

  • Status changed from Resolved to In Review

Merged into devel and deployed on mentat-alt.

Actions #6

Updated by Rajmund Hruška over 1 year ago

  • Status changed from In Review to Closed
Actions #7

Updated by Rajmund Hruška over 1 year ago

  • Status changed from Closed to In Progress
  • % Done changed from 100 to 50

The issue is still present when using quicksearch for last X hours.

Actions #8

Updated by Rajmund Hruška over 1 year ago

  • Status changed from In Progress to Closed
  • % Done changed from 50 to 100
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