Support partial filter expressions for indexing introduced in MongoDB 3.2 [DATAMONGO-1467]

[spring-projects-issues]

Christian Schneider opened DATAMONGO-1467 and commented

MongoDb 3.2 introduced an new index option which allows to index only documents where a given expression matches.

See: https://docs.mongodb.com/manual/core/index-partial/

It would be nice to have the @Indexed extended to this.

Smth. like:

@Document
class EntityWithPartialFilterIndex {

	@Indexed(unique = true, name = "uniqueLastname", partialFilter = "{ lastname : { $exists : true } }")
        String lastname;
}

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Affects: 1.10 M1 (Ingalls)

Issue Links:

• DATAMONGO-1321 Add Support for partialFilterExpression for index creation
  ("is duplicated by")
• DATAMONGO-1569 Allow partial filter expression usage along with the *...Indexed annotations

Referenced from: pull request #431

Backported to: 1.10 RC1 (Ingalls)

[spring-projects-issues]

Christian Schneider commented

I've opened a PR for this: #380

[spring-projects-issues]

Oliver Drotbohm commented

This is now in place for programmatic use