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Posted to notifications@superset.apache.org by "tmottura-interfacing (via GitHub)" <gi...@apache.org> on 2026/03/13 19:54:15 UTC
[D] Merging/Grouping of key values in table chart [superset]
GitHub user tmottura-interfacing created a discussion: Merging/Grouping of key values in table chart
Is there any way to have key values grouped or merged in a table where you have hierarchy ?
It seems you are compelled to accept that key values are repeated if there are several elements belonging to it.
Many thanks.
GitHub link: https://github.com/apache/superset/discussions/38640
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Re: [D] Merging/Grouping of key values in table chart [superset]
Posted by "dosubot[bot] (via GitHub)" <gi...@apache.org>.
GitHub user dosubot[bot] added a comment to the discussion: Merging/Grouping of key values in table chart
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Hi @tmottura-interfacing! I'm [Dosu](https://go.dosu.dev/dosubot) and Iām helping the superset team.
<!-- Answer -->
Cell merging in Superset table charts is [not currently supported](https://github.com/apache/superset/discussions/31471) ā it's a feature that has been requested but isn't available yet.
Superset does have [row grouping for table charts](https://github.com/apache/superset/issues/33289), but this groups data logically without visually merging the repeated parent values you're trying to avoid.
**Workaround**: You can use the ["Render Columns in HTML Format" option](https://github.com/apache/superset/discussions/35000) with custom SQL expressions containing HTML/CSS to create visual grouping effects. This isn't true cell merging, but it can help approximate a hierarchical display by styling cells differently based on your data structure.
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GitHub link: https://github.com/apache/superset/discussions/38640#discussioncomment-16123223
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Re: [D] Merging/Grouping of key values in table chart [superset]
Posted by "aniruddhaadak80 (via GitHub)" <gi...@apache.org>.
GitHub user aniruddhaadak80 edited a comment on the discussion: Merging/Grouping of key values in table chart
To merge or group key values natively in a Superset Table Chart, you should use the 'Pivot Table v2' visualization instead of the standard Table. It allows you to drag dimensions to rows/columns and handles hierarchical grouping and subtotals out-of-the-box.
GitHub link: https://github.com/apache/superset/discussions/38640#discussioncomment-16127799
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Re: [D] Merging/Grouping of key values in table chart [superset]
Posted by "fowlerp397-tech (via GitHub)" <gi...@apache.org>.
GitHub user fowlerp397-tech added a comment to the discussion: Merging/Grouping of key values in table chart
Appreciate you opening this issue
On Sat, Mar 14, 2026, 12:58 AM ANIRUDDHA ADAK ***@***.***>
wrote:
> Hello @tmottura-interfacing <https://github.com/tmottura-interfacing>,
>
> Thanks for opening this up! Usually, with these kinds of underlying
> issues, the first step is double-checking if there is a minor version
> mismatch in your installed environment tooling vs the actual framework
> requirements.
>
> Have you tried outright clearing the respective local build/cache
> directories, forcing a clean slate reinstall, and ruling out any implicit
> breaking changes from recent patches?
>
> If you are still hitting the exact same bottleneck, dropping a minimal
> reproduction steps (or specifically the raw error logs) here usually gets
> it sorted out way faster by the maintainers.
>
> Hope this helps point you in the right direction. Let me know if you make
> any progress!
>
> ā
> Reply to this email directly, view it on GitHub
> <https://github.com/apache/superset/discussions/38640#discussioncomment-16127799>,
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GitHub link: https://github.com/apache/superset/discussions/38640#discussioncomment-16175649
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Re: [D] Merging/Grouping of key values in table chart [superset]
Posted by "aniruddhaadak80 (via GitHub)" <gi...@apache.org>.
GitHub user aniruddhaadak80 added a comment to the discussion: Merging/Grouping of key values in table chart
Hello @tmottura-interfacing,
Thanks for opening this up! Usually, with these kinds of underlying issues, the first step is double-checking if there is a minor version mismatch in your installed environment tooling vs the actual framework requirements.
Have you tried outright clearing the respective local build/cache directories, forcing a clean slate reinstall, and ruling out any implicit breaking changes from recent patches?
If you are still hitting the exact same bottleneck, dropping a minimal reproduction steps (or specifically the raw error logs) here usually gets it sorted out way faster by the maintainers.
Hope this helps point you in the right direction. Let me know if you make any progress!
GitHub link: https://github.com/apache/superset/discussions/38640#discussioncomment-16127799
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Re: [D] Merging/Grouping of key values in table chart [superset]
Posted by "dosubot[bot] (via GitHub)" <gi...@apache.org>.
GitHub user dosubot[bot] edited a comment on the discussion: Merging/Grouping of key values in table chart
<!-- Greeting -->
Hi @tmottura-interfacing! I'm [Dosu](https://go.dosu.dev/dosubot) and Iām helping the superset team.
<!-- Answer -->
Cell merging in Superset table charts is [not currently supported](https://github.com/apache/superset/discussions/31471) ā it's a feature that has been requested but isn't available yet.
Superset does have [row grouping for table charts](https://github.com/apache/superset/issues/33289), but this groups data logically without visually merging the repeated parent values you're trying to avoid.
**Workaround**: You can use the ["Render Columns in HTML Format" option](https://github.com/apache/superset/discussions/35000) with custom SQL expressions containing HTML/CSS to create visual grouping effects. This isn't true cell merging, but it can help approximate a hierarchical display by styling cells differently based on your data structure.
<!-- Dosu Comment Footer -->
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GitHub link: https://github.com/apache/superset/discussions/38640#discussioncomment-16123223
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