[1.16] Add ACORN and Inline Storage docs (#1990)

* Add ACORN doc

* Add Inline Storage doc

* Use consistent version gate marker

* Update

---------

Co-authored-by: Tim Visée <tim@visee.me>

qdrant-landing/content/documentation/headless/snippets/query-points/with-acorn/_description.md

@@ -0,0 +1,6 @@
+This code snippet demonstrates how to enable ACORN for HNSW search.
+ACORN improves search recall for searches with multiple low-selectivity payload filters, at the cost of reduced performance.
+The `enable` parameter activates ACORN based on filter selectivity.
+The `max_selectivity` parameter controls the threshold - if estimated filter selectivity is higher than this value, ACORN will not be used.
+Selectivity is estimated as the ratio of points satisfying the filters to total points.
+Values range from 0.0 (never use ACORN) to 1.0 (always use ACORN), with a default of 0.4.

qdrant-landing/content/documentation/headless/snippets/query-points/with-acorn/csharp.md

@@ -0,0 +1,20 @@
+```csharp
+using Qdrant.Client;
+using Qdrant.Client.Grpc;
+
+var client = new QdrantClient("localhost", 6334);
+
+await client.QueryAsync(
+	collectionName: "{collection_name}",
+	query: new float[] { 0.2f, 0.1f, 0.9f, 0.7f },
+	searchParams: new SearchParams
+	{
+		Acorn = new AcornSearchParams
+		{
+			Enable = true,
+			MaxSelectivity = 0.4
+		}
+	},
+	limit: 10
+);
+```

qdrant-landing/content/documentation/headless/snippets/query-points/with-acorn/go.md

@@ -0,0 +1,23 @@
+```go
+import (
+	"context"
+
+	"github.com/qdrant/go-client/qdrant"
+)
+
+client, err := qdrant.NewClient(&qdrant.Config{
+	Host: "localhost",
+	Port: 6334,
+})
+
+client.Query(context.Background(), &qdrant.QueryPoints{
+	CollectionName: "{collection_name}",
+	Query:          qdrant.NewQuery(0.2, 0.1, 0.9, 0.7),
+	Params: &qdrant.SearchParams{
+		Acorn: &qdrant.AcornSearchParams{
+			Enable:          qdrant.PtrOf(true),
+			MaxSelectivity:  qdrant.PtrOf(0.4),
+		},
+	},
+})
+```

qdrant-landing/content/documentation/headless/snippets/query-points/with-acorn/http.md

@@ -0,0 +1,13 @@
+```http
+POST /collections/{collection_name}/points/query
+{
+    "query": [0.2, 0.1, 0.9, 0.7],
+    "params": {
+        "acorn": {
+            "enable": true,
+            "max_selectivity": 0.4
+        }
+    },
+    "limit": 10
+}
+```

qdrant-landing/content/documentation/headless/snippets/query-points/with-acorn/java.md

@@ -0,0 +1,28 @@
+```java
+import io.qdrant.client.QdrantClient;
+import io.qdrant.client.QdrantGrpcClient;
+import io.qdrant.client.grpc.Points.AcornSearchParams;
+import io.qdrant.client.grpc.Points.QueryPoints;
+import io.qdrant.client.grpc.Points.SearchParams;
+
+import static io.qdrant.client.QueryFactory.nearest;
+
+QdrantClient client =
+    new QdrantClient(QdrantGrpcClient.newBuilder("localhost", 6334, false).build());
+
+client.queryAsync(
+        QueryPoints.newBuilder()
+                .setCollectionName("{collection_name}")
+                .setQuery(nearest(0.2f, 0.1f, 0.9f, 0.7f))
+                .setParams(
+                        SearchParams.newBuilder()
+                                .setAcorn(
+                                        AcornSearchParams.newBuilder()
+                                                .setEnable(true)
+                                                .setMaxSelectivity(0.4)
+                                                .build())
+                                .build())
+                .setLimit(10)
+                .build())
+        .get();
+```

qdrant-landing/content/documentation/headless/snippets/query-points/with-acorn/python.md

@@ -0,0 +1,17 @@
+```python
+from qdrant_client import QdrantClient, models
+
+client = QdrantClient(url="http://localhost:6333")
+
+client.query_points(
+    collection_name="{collection_name}",
+    query=[0.2, 0.1, 0.9, 0.7],
+    search_params=models.SearchParams(
+        acorn=models.AcornSearchParams(
+            enable=True,
+            max_selectivity=0.4,
+        )
+    ),
+    limit=10,
+)
+```

qdrant-landing/content/documentation/headless/snippets/query-points/with-acorn/rust.md

@@ -0,0 +1,22 @@
+```rust
+use qdrant_client::qdrant::{
+    AcornSearchParamsBuilder, QueryPointsBuilder, SearchParamsBuilder,
+};
+use qdrant_client::Qdrant;
+
+let client = Qdrant::from_url("http://localhost:6334").build()?;
+
+client
+    .query(
+        QueryPointsBuilder::new("{collection_name}")
+            .query(vec![0.2, 0.1, 0.9, 0.7])
+            .limit(10)
+            .params(
+                SearchParamsBuilder::default().acorn(
+                    AcornSearchParamsBuilder::new(true)
+                        .max_selectivity(0.4),
+                ),
+            ),
+    )
+    .await?;
+```

qdrant-landing/content/documentation/headless/snippets/query-points/with-acorn/typescript.md

@@ -0,0 +1,16 @@
+```typescript
+import { QdrantClient } from "@qdrant/js-client-rest";
+
+const client = new QdrantClient({ host: "localhost", port: 6333 });
+
+client.query("{collection_name}", {
+    query: [0.2, 0.1, 0.9, 0.7],
+    params: {
+        acorn: {
+            enable: true,
+            max_selectivity: 0.4,
+        },
+    },
+    limit: 10,
+});
+```