Method name-based delete operations don't delete

[chris-unlikelyai]

The docs seem to suggest I can define a custom delete method on my repository in the same way I can define a custom query method. For example:

@Table
data class Entity(val name: String, @Id val id: UUID? = null)

interface EntityRepository : CrudRepository<Entity, UUID> {
  fun deleteByName(name: String)
}

However, calling the method doesn't delete anything. Enabling debug logging for Spring Data, it looks like Spring is attempting to query instead of delete:

SELECT "ENTITY"."ID" AS "ID", "ENTITY"."NAME" AS "NAME" FROM "ENTITY" WHERE "ENTITY"."NAME" = ?

Is this actually supported? The docs are slightly vague in the sense that they only really mention it in passing.

Reproducable example: https://github.com/chris-unlikelyai/springdataissue2

[schauder]

You are referring to the general section of the documentation, describing the general behaviour of Spring Data modules.
Not everything described there is fully supported by all modules.
And delete for query derivation is indeed not supported in the current version of Spring Data.

The good news is a PR was recently merged, implementing this support. So this feature will be available in version 3.5M1 and following.