uqa-storage-sqlite 0.3.8

SQLite catalog, indexes, compressed storage, graph and key/value providers
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31

//
// Unified Query Algebra
//
// Copyright (c) 2023-2026 Cognica, Inc.
//

//! HNSW query selection with an exact fallback before initial graph build.

use uqa_core::PostingList;

use super::SQLiteHNSWIndex;
use uqa_storage::vector_index::VectorIndex;
use uqa_storage::StorageBackendResult;

impl SQLiteHNSWIndex {
    pub(super) fn search_top_k(
        &self,
        query: &[f32],
        k: usize,
    ) -> StorageBackendResult<PostingList> {
        if let Some(revision) = self.persisted_revision()? {
            return self
                .cached_graph_for_revision(revision)?
                .search_knn(query, k);
        }
        if self.require_persisted_graph {
            return Err(super::mutation::missing_metadata(self));
        }
        self.persistent.search_knn(query, k)
    }
}