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sl-at-ibm
marked this pull request as ready for review
September 9, 2026 20:40
amorton
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Sep 20, 2026
amorton
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-1 - the collection must have a vector to use hybrid. We are defining hybrid as vector + optional other legs.
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ACK, makes sense. Thanks for taking the time to review this one. |
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closing per discussions above |
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What this PR does:
Address #2577 under the assumption that symmetry is preferrable (between vector/ize-only and lexical-only paths for f.A.R.R.)
In other words, rather than better dressing the error mentioned in the issue (no vector/ize provided => illegal arg exception), it accepts a findAndRerank with the lexical part only in $hybrid, executes that leg of the retrieval, and submits those results to the reranker.
Note: this PR is kept intentionally clear of fixing the absence of "rerankOn" (these two errors are close to each other). This is to avoid overlapping with #2578 which deals with that issue. If that other ever gets merged, it might be a good idea to add a test to this one for the case with lexical-only and no rerankOn.
Which issue(s) this PR fixes:
Fixes #2577
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