#31826: AlterField with only db_column changed should be a noop
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Reporter: Iuri de Silvio | Owner: Iuri de
Type: | Silvio
Cleanup/optimization | Status: assigned
Component: Migrations | Version: 3.0
Severity: Normal | Resolution:
Keywords: | Triage Stage:
| Unreviewed
Has patch: 0 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 0 | UI/UX: 0
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Description changed by Iuri de Silvio:
Old description:
> When I change: `pink = models.Integer(default=0)` to `pink =
> models.Integer(default=0, db_column="pink")` the migration recreate
> constraints if it is an FK or even reconstruct the table (SQLite), but
> nothing really changed.
>
> The (same) constraint drop/create is a blocking operation for PostgreSQL,
> so it is an undesirable and unexpected behavior.
New description:
When I change `pink = models.Integer(default=0)` to `pink =
models.Integer(default=0, db_column="pink")` the migration drop/create the
same constraints when it is an FK or even reconstruct the table (SQLite),
but nothing really changed. The constraint drop/create is a blocking
operation for PostgreSQL, so it is an undesirable and unexpected behavior.
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Ticket URL: <https://code.djangoproject.com/ticket/31826#comment:4>
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