Add backwards compatibility patch for vector store (#1334)

.semversioner/next-release/patch-20241029025329363730.json

@@ -0,0 +1,4 @@
+{
+  "type": "patch",
+  "description": "add backwards compatibility patch to vector store."
+}

.vscode/extensions.json

@@ -6,6 +6,7 @@
     "ms-python.vscode-pylance",
     "bierner.markdown-mermaid",
     "streetsidesoftware.code-spell-checker",
-    "ronnidc.nunjucks"
+    "ronnidc.nunjucks",
+    "lucien-martijn.parquet-visualizer",
   ]
 }

graphrag/api/query.py

@@ -182,18 +182,56 @@ async def local_search(
     ------
     TODO: Document any exceptions to expect.
     """
-    # TODO: must update filepath of lancedb (if used) until the new config engine has been implemented
+    #################################### BEGIN PATCH ####################################
+    # TODO: remove the following patch that checks for a vector_store prior to v1 release
+    # TODO: this is a backwards compatibility patch that injects the default vector_store settings into the config if it is not present
+    # Only applicable in situations involving a local vector_store (lancedb). The general idea:
+    # if vector_store not in config:
+    #     1. assume user is running local if vector_store is not in config
+    #     2. insert default vector_store in config
+    #     3 .create lancedb vector_store instance
+    #     4. upload vector embeddings from the input dataframes to the vector_store
+    backwards_compatible = False
+    if not config.embeddings.vector_store:
+        backwards_compatible = True
+        from graphrag.query.input.loaders.dfs import store_entity_semantic_embeddings
+        from graphrag.vector_stores.lancedb import LanceDBVectorStore
+
+        config.embeddings.vector_store = {
+            "type": "lancedb",
+            "db_uri": f"{Path(config.storage.base_dir)}/lancedb",
+            "collection_name": "entity_description_embeddings",
+            "overwrite": True,
+        }
+        _entities = read_indexer_entities(nodes, entities, community_level)
+        description_embedding_store = LanceDBVectorStore(
+            db_uri=config.embeddings.vector_store["db_uri"],
+            collection_name=config.embeddings.vector_store["collection_name"],
+            overwrite=config.embeddings.vector_store["overwrite"],
+        )
+        description_embedding_store.connect(
+            db_uri=config.embeddings.vector_store["db_uri"]
+        )
+        # dump embeddings from the entities list to the description_embedding_store
+        store_entity_semantic_embeddings(
+            entities=_entities, vectorstore=description_embedding_store
+        )
+    #################################### END PATCH ####################################
+
+    # TODO: update filepath of lancedb (if used) until the new config engine has been implemented
     # TODO: remove the type ignore annotations below once the new config engine has been refactored
     vector_store_type = config.embeddings.vector_store.get("type")  # type: ignore
     vector_store_args = config.embeddings.vector_store
-    if vector_store_type == "lancedb":
+    if vector_store_type == VectorStoreType.LanceDB and not backwards_compatible:
         db_uri = config.embeddings.vector_store["db_uri"]  # type: ignore
         lancedb_dir = Path(config.root_dir).resolve() / db_uri
         vector_store_args["db_uri"] = str(lancedb_dir)  # type: ignore
+
     reporter.info(f"Vector Store Args: {redact(vector_store_args)}")  # type: ignore
-    description_embedding_store = _get_embedding_description_store(
-        config_args=vector_store_args,  # type: ignore
-    )
+    if not backwards_compatible:  # can remove this check and always set the description_embedding_store before v1 release
+        description_embedding_store = _get_embedding_description_store(
+            config_args=vector_store_args,  # type: ignore
+        )
 
     _entities = read_indexer_entities(nodes, entities, community_level)
     _covariates = read_indexer_covariates(covariates) if covariates is not None else []
@@ -205,7 +243,7 @@ async def local_search(
         entities=_entities,
         relationships=read_indexer_relationships(relationships),
         covariates={"claims": _covariates},
-        description_embedding_store=description_embedding_store,
+        description_embedding_store=description_embedding_store,  # type: ignore
         response_type=response_type,
     )
 
@@ -251,18 +289,56 @@ async def local_search_streaming(
     ------
     TODO: Document any exceptions to expect.
     """
+    #################################### BEGIN PATCH ####################################
+    # TODO: remove the following patch that checks for a vector_store prior to v1 release
+    # TODO: this is a backwards compatibility patch that injects the default vector_store settings into the config if it is not present
+    # Only applicable in situations involving a local vector_store (lancedb). The general idea:
+    # if vector_store not in config:
+    #     1. assume user is running local if vector_store is not in config
+    #     2. insert default vector_store in config
+    #     3 .create lancedb vector_store instance
+    #     4. upload vector embeddings from the input dataframes to the vector_store
+    backwards_compatible = False
+    if not config.embeddings.vector_store:
+        backwards_compatible = True
+        from graphrag.query.input.loaders.dfs import store_entity_semantic_embeddings
+        from graphrag.vector_stores.lancedb import LanceDBVectorStore
+
+        config.embeddings.vector_store = {
+            "type": "lancedb",
+            "db_uri": f"{Path(config.storage.base_dir)}/lancedb",
+            "collection_name": "entity_description_embeddings",
+            "overwrite": True,
+        }
+        _entities = read_indexer_entities(nodes, entities, community_level)
+        description_embedding_store = LanceDBVectorStore(
+            db_uri=config.embeddings.vector_store["db_uri"],
+            collection_name=config.embeddings.vector_store["collection_name"],
+            overwrite=config.embeddings.vector_store["overwrite"],
+        )
+        description_embedding_store.connect(
+            db_uri=config.embeddings.vector_store["db_uri"]
+        )
+        # dump embeddings from the entities list to the description_embedding_store
+        store_entity_semantic_embeddings(
+            entities=_entities, vectorstore=description_embedding_store
+        )
+    #################################### END PATCH ####################################
+
     # TODO: must update filepath of lancedb (if used) until the new config engine has been implemented
     # TODO: remove the type ignore annotations below once the new config engine has been refactored
-    vector_store_type = config.embeddings.vector_store["type"]  # type: ignore
+    vector_store_type = config.embeddings.vector_store.get("type")  # type: ignore
     vector_store_args = config.embeddings.vector_store
-    if vector_store_type == VectorStoreType.LanceDB:
+    if vector_store_type == VectorStoreType.LanceDB and not backwards_compatible:
         db_uri = config.embeddings.vector_store["db_uri"]  # type: ignore
         lancedb_dir = Path(config.root_dir).resolve() / db_uri
         vector_store_args["db_uri"] = str(lancedb_dir)  # type: ignore
+
     reporter.info(f"Vector Store Args: {redact(vector_store_args)}")  # type: ignore
-    description_embedding_store = _get_embedding_description_store(
-        config_args=vector_store_args,  # type: ignore
-    )
+    if not backwards_compatible:  # can remove this check and always set the description_embedding_store before v1 release
+        description_embedding_store = _get_embedding_description_store(
+            config_args=vector_store_args,  # type: ignore
+        )
 
     _entities = read_indexer_entities(nodes, entities, community_level)
     _covariates = read_indexer_covariates(covariates) if covariates is not None else []
@@ -274,7 +350,7 @@ async def local_search_streaming(
         entities=_entities,
         relationships=read_indexer_relationships(relationships),
         covariates={"claims": _covariates},
-        description_embedding_store=description_embedding_store,
+        description_embedding_store=description_embedding_store,  # type: ignore
         response_type=response_type,
     )
     search_result = search_engine.astream_search(query=query)

tests/fixtures/min-csv/settings.yml

@@ -6,12 +6,11 @@ embeddings:
     type: "lancedb"
     db_uri: "./tests/fixtures/min-csv/lancedb"
     collection_name: "lancedb_ci"
+    overwrite: True
     store_in_table: True
-
     entity_name_description:
       title_column: "name"
       # id_column: "id"
-      # overwrite: true
     # entity_name: ...
     # relationship_description: ...
     # community_report_full_content: ...
@@ -20,7 +19,6 @@ embeddings:
     # document_raw_content: ...
     # text_unit_text: ...
 
-
 storage:
   type: file # or blob
   base_dir: "output/${timestamp}/artifacts"