Skip to content

Document multi index query support for simplified retrievers #134980

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
merged 4 commits into from
Sep 18, 2025
Merged

Document multi index query support for simplified retrievers #134980

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
4 commits
Select commit Hold shift + click to select a range
abf5b84
Test non default rank constant
ioanatia Sep 18, 2025
00b8cc9
Update docs
ioanatia Sep 18, 2025
9d35c4d
Update docs/reference/elasticsearch/rest-apis/retrievers.md
ioanatia Sep 18, 2025
16aecac
Merge branch 'main' into simplified_retrievers_docs
ioanatia Sep 18, 2025
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
4 changes: 2 additions & 2 deletions docs/reference/elasticsearch/rest-apis/retrievers.md
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -233,10 +233,10 @@ Note, however, that wildcard field patterns will only resolve to fields that eit

### Limitations

- **Single index**: Multi-field queries currently work with single index searches only
- **Single index**: Until 9.2, multi-field queries only work with single index searches.
Copy link
Member

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Looks good, I think the applies to syntax could be a bit heavy handed here but will defer to @leemthompo for best practices 😁

Copy link
Contributor

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

yeah applies_to doesn't work in every scenario :)

- **CCS (Cross Cluster Search)**: Multi-field queries do not support remote cluster searches

### Examples

- [RRF with the multi-field query format](retrievers/retrievers-examples.md#retrievers-examples-rrf-multi-field-query-format)
- [Linear retriever with the multi-field query format](retrievers/retrievers-examples.md#retrievers-examples-linear-multi-field-query-format)
- [Linear retriever with the multi-field query format](retrievers/retrievers-examples.md#retrievers-examples-linear-multi-field-query-format)
4 changes: 2 additions & 2 deletions ...gin/rank-rrf/src/test/java/org/elasticsearch/xpack/rank/rrf/RRFRetrieverBuilderTests.java
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -445,13 +445,13 @@ public void testMultiIndexMultiFieldsParamsRewrite() {
null
);

// Non-default rank window size
// Non-default rank window size and non-default rank_constant
retriever = new RRFRetrieverBuilder(
null,
List.of("field_1", "field_2", "semantic_field_1", "semantic_field_2"),
"foo2",
DEFAULT_RANK_WINDOW_SIZE * 2,
RRFRetrieverBuilder.DEFAULT_RANK_CONSTANT,
RRFRetrieverBuilder.DEFAULT_RANK_CONSTANT * 2,
new float[0]
);
assertMultiIndexMultiFieldsParamsRewrite(
Expand Down