dosubot[bot] commented on issue #32535:
URL: https://github.com/apache/superset/issues/32535#issuecomment-2705182871
The issue you're experiencing with the time column filter in Superset
version 4.1.1, where the chart visualization incorrectly merges data despite
the query using the correct timestamp column, could be related to known issues
with the chart rendering engine and time column filters. Specifically, there
are issues where time range filters do not persist correctly or are not applied
as expected in certain views, which might affect the visualization
[[1]](https://github.com/apache/superset/blob/master/superset-frontend/CHANGELOG.md).
Additionally, Superset's handling of time columns involves mapping reserved
column names to specific query fields, and any misalignment in this process
could lead to incorrect data representation in charts
[[2]](https://github.com/apache/superset/blob/master/superset-frontend/packages/superset-ui-core/src/query/extractExtras.ts).
It's also worth noting that there are known bugs related to time grain and
time range calculations that might impact the functionality of time filters
[[3]](https://github.com/apache/superset/issues/31927).
Given that the "View as Table" displays the correct data, the problem likely
lies within the chart rendering logic. You might want to check if there are any
specific configurations or settings in your chart setup that could be causing
this issue, such as custom time grain settings or additional filters that might
interfere with the time column filter.
*To continue talking to [Dosu](https://dosu.dev), mention @dosu.*
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