Add vector search

pages/querying/_meta.json

@@ -8,6 +8,7 @@
  "expressions": "Expressions",
  "schema": "Schema",
  "text-search": "Text search",
+ "vector-search": "Vector search",
  "time-to-live": "Time to live",
  "query-plan": "Query plan",
  "exploring-datasets": "Exploring datasets"

pages/querying/vector-search.mdx

@@ -0,0 +1,67 @@
+---
+title: Vector search
+description: Learn how to use vector search and manage vector indices in Memgraph.
+---
+
+import { Callout } from 'nextra/components'
+
+# Vector search
+
+TODO(gitbuda): Explain why and what?
+
+## Create vector indices
+
+Vector indices are created with the `CREATE VECTOR INDEX` command. You need to give
+a name to the new index and specify which label and property it should apply to.
+
+```cypher
+CREATE VECTOR INDEX vectorIndexName ON :Label(property) OPTIONS { config };
+```
+
+If you attempt to create an index with an existing name, the statement will fail.
+
+## TODO(gitbuda): What is indexed and how?
+
+## Show vector indices
+
+To list all vector indices in Memgraph, use the `SHOW INDEX INFO`
+[statement](/fundamentals/indexes#show-created-indexes).
+
+## TODO(gitbuda): Query vector indices
+
+```
+CALL vector_search.query_nodes('vectorIndexName', 10, [1.0, 2.0, ...])
+YIELD node, score
+RETURN node, score;
+```
+
+## TODO(gitbuda): Import hints
+
+## Drop vector indices
+
+Vector indices are dropped with the `DROP VECTOR INDEX` command. You need to give
+the name of the index to be deleted.
+
+This statement drops the vector index named `vectorIndexName`:
+
+```cypher
+DROP VECTOR INDEX vectorIndexName;
+```
+
+If one attempts to delete an index with the same name twice, the statement will
+fail.
+
+## Compatibility
+
+Vector search supports usage modalities that are available in Memgraph. Refer
+to the table below for an overview:
+
+| Feature | Support |
+|-------------------------|-----------|
+| Multitenancy | todo |
+| Durability | todo |
+| Storage modes | todo |
+| Replication | todo |
+| Concurrent transactions | todo |
+
+## TODO(gitbuda): In-memory vs On-disk + memory vs time