DRIVERS-3308: Support nested fields in vector search#39
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Pull request overview
Adds specification support for nested-field behavior in the $vectorSearch stage by documenting a new configuration object and providing a corresponding example pipeline.
Changes:
- Added an optional
nestedOptionsargument (object) with ascoreModesub-argument to control scoring for nested arrays. - Added a new “Nested field” example pipeline demonstrating nested paths and nested scoring configuration.
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definitions/stage/vectorSearch.yaml:269
- All other
$vectorSearchexamples in this file include aschema:block, but this new nested-field example does not. Adding a schema keeps examples consistent and improves validation of nested paths used byfilter,parentFilter, andpath.
score:
$meta: vectorSearchScore
kevinAlbs
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Jun 2, 2026
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LGTM with minor comments (Apologies for the delayed review. Vector search is a novel to me).
It's not mentioned anywhere in the docs (or ever has been), and I'm unsure where it camefrom. Removing it for clarity.
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