Benjamin Trent acc99302c6 Adding hamming distance function to painless for dense_vector fields (#109359) ... This adds `hamming` distances, the pop-count of `xor` byte vectors as a first class citizen in painless. For byte vectors, this means that we can compute hamming distances via script_score (aka, brute-force). The implementation of `hamming` is the same that is available in Lucene, and when lucene 9.11 is merged, we should update our logic where applicable to utilize it. NOTE: this does not yet add hamming distance as a metric for indexed vectors. This will be a future PR after the Lucene 9.11 upgrade.		2024-06-18 03:41:20 +10:00
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vector-functions.asciidoc	Adding hamming distance function to painless for dense_vector fields (#109359)	2024-06-18 03:41:20 +10:00