Add vector-stores module: one dataset through VectorStore on pgvector, Redis, Qdrant and Elasticsearch

Co-Authored-By: Claude Sonnet 5.5 <[email protected]> Claude-Session: https://claude.ai/code/session_01JXVi2GMQ7bR5EmbUFdDj7N
2026-10-09 06:05:26 +00:00
parent 527f4ba7ff
commit 80db4eb8ac
26 changed files with 1070 additions and 0 deletions
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+Spring AI 2.0.1 sends num_candidates = (int)(1.5 * topK) = 15 for topK=10 (ElasticsearchVectorStore bytecode: ldc2_w 1.5d, dmul, d2i)
+same index, same 100 queries, raw _search with the num_candidates varied:
+num_candidates    recall@10    p50 ms
+15                    0.491       4.5
+50                    0.489       3.9
+100                   0.490       3.8
+500                   0.490       4.0