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## About
CrateDB does not support the notion of `UNIQUE` constraints, because it is a distributed database. For supporting certain applications, specific workarounds have been showing a successful …
amotl updated
3 months ago
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**Is your feature request related to a problem? Please describe.**
This is one of the missing pieces to support ALTER TABLE ADD COLUMN fully in the declarative schema changer.
**Describe the solut…
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| --- | --- |
| Bugzilla Link | [264927](https://bugs.eclipse.org/bugs/show_bug.cgi?id=264927) |
| Status | NEW |
| Importance | P3 normal |
| Reported | Feb 14, 2009 05:39 EDT |
| Modified | May…
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This is less necessary with :where constraints on updates and deletes.
We should throw an exception if someone tries to create a duplicate of a unique value.
SHACL may be able to constrain uniquenes…
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**Is your feature request related to a problem? Please describe.**
I have lots of scenarios where I require unique values on non-primary key fields. Especially for public apps where you might want to…
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Hi,
I'm migrating some old code over, and have a lot of unique constraints. I guess I need to turn these all into unique_together constraints in the meta class since there's no transformation done …
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### Bug description
Marking a column as `@unique` generates a `CREATE UNIQUE INDEX` statement.
However, [per the PG docs](https://www.postgresql.org/docs/9.4/indexes-unique.html), it's preferred…
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### Summary
**PostGraphile recognizes columns as unique only if they have a unique constraint and not when a unique index is created**
While this is not a direct problem with postgraphile, the s…
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### As ...
Dan - Data Owner
### I want ...
A clear, globally consistent field or set of fields (i.e., natural key) that can be guaranteed to uniquely identify a specific Device instance. Curr…
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We're going to split `VLAN` from `VLAN Group`.
_Originally posted by @bryanculver in https://github.com/nautobot/nautobot/issues/3850#issuecomment-1593250553_
_Carved from #2909, #3850_
### Pro…