Alter hypertable update for drop column/change type#4584
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Allow 10 minutes from last push for the staging site to build. If the link doesn't work, try using incognito mode instead. For internal reviewers, check web-documentation repo actions for staging build status. Link to build for this PR: http://docs-dev.timescale.com/docs-3791-feedback-feedback-page-use-timescalelatesthypertablesalter |
dbeck
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Nov 24, 2025
svenklemm
reviewed
Nov 24, 2025
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| The following restrictions apply: | ||
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| - You cannot change the type of `segmentby` columns. |
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Suggested change
| - You cannot change the type of `segmentby` columns. | |
| - You cannot change the type of `segmentby` columns. | |
| - You cannot change the type of columns when any chunk of the hypertable uses columnstore |
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Added in a sightly different wording and linked to the dedicated page about it
svenklemm
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Nov 24, 2025
| - For time dimension columns, you can only change to `TIMESTAMPTZ`, `TIMESTAMP`, `DATE`, | ||
| `INTEGER` (smallint, integer, or bigint), or `UUID` (UUIDv7 only). | ||
| - You cannot change the type of columns with custom partitioning functions. | ||
| - You cannot change the type of columns for $HYPERTABLEs with $COLUMNSTORE enabled. See [Altering $HYPERTABLEs with $COLUMNSTORE enabled][alter-schema] for how to do it instead. |
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with 2.24 this is no longer tied to columnstore being enabled but to individual chunks using columnstore
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Will keep in mind, thank you.
svenklemm
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Nov 24, 2025
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