added a index for the VEctor DB

tests/test_ebook_search_core.py

@@ -38,7 +38,14 @@ from python.ebook_search.search import (
     search_ebooks,
 )
 from python.ebook_search.timing import RuntimeStep
-from python.orm.richie import EbookChapter, EbookChunk, EbookEmbeddingModel, EbookSource, RichieBase
+from python.orm.richie import (
+    EbookChapter,
+    EbookChunk,
+    EbookChunkEmbedding1024,
+    EbookEmbeddingModel,
+    EbookSource,
+    RichieBase,
+)
 
 
 def test_chunk_text_uses_overlap() -> None:
@@ -464,6 +471,15 @@ def test_ensure_embedding_models_registers_service_names() -> None:
     ]
 
 
+def test_1024_embedding_table_has_cosine_hnsw_index() -> None:
+    indexes = {index.name: index for index in EbookChunkEmbedding1024.__table__.indexes}
+    index = indexes["ix_ebook_chunk_embedding_1024_embedding_cosine"]
+
+    assert [column.name for column in index.columns] == ["embedding"]
+    assert index.dialect_options["postgresql"]["using"] == "hnsw"
+    assert index.dialect_options["postgresql"]["ops"] == {"embedding": "vector_cosine_ops"}
+
+
 def test_embedding_model_aliases_normalize_to_provider_names() -> None:
     assert normalize_embedding_model() == "qwen3-embedding-0.6b"