mirror of
https://github.com/syncthing/syncthing.git
synced 2025-12-23 22:18:14 -05:00
cf1cf85ce6
This changes the database structure to use one database per folder, with a small main database to coordinate. Reverts the prior change to buffer all files in memory when pulling, meaning there is now a phase where the WAL file will grow significantly, at least for initial sync of folders with many directories. --------- Co-authored-by: bt90 <btom1990@googlemail.com>
35 lines
1.3 KiB
SQL
35 lines
1.3 KiB
SQL
-- Copyright (C) 2025 The Syncthing Authors.
|
|
--
|
|
-- This Source Code Form is subject to the terms of the Mozilla Public
|
|
-- License, v. 2.0. If a copy of the MPL was not distributed with this file,
|
|
-- You can obtain one at https://mozilla.org/MPL/2.0/.
|
|
|
|
-- Block lists
|
|
--
|
|
-- The block lists are extracted from FileInfos and stored separately. This
|
|
-- reduces the database size by reusing the same block list entry for all
|
|
-- devices announcing the same file. Doing it for all block lists instead of
|
|
-- using a size cutoff simplifies queries. Block lists are garbage collected
|
|
-- "manually", not using a trigger as that was too performance impacting.
|
|
CREATE TABLE IF NOT EXISTS blocklists (
|
|
blocklist_hash BLOB NOT NULL PRIMARY KEY,
|
|
blprotobuf BLOB NOT NULL
|
|
) STRICT
|
|
;
|
|
|
|
-- Blocks
|
|
--
|
|
-- For all local files we store the blocks individually for quick lookup. A
|
|
-- given block can exist in multiple blocklists and at multiple offsets in a
|
|
-- blocklist.
|
|
CREATE TABLE IF NOT EXISTS blocks (
|
|
hash BLOB NOT NULL,
|
|
blocklist_hash BLOB NOT NULL,
|
|
idx INTEGER NOT NULL,
|
|
offset INTEGER NOT NULL,
|
|
size INTEGER NOT NULL,
|
|
PRIMARY KEY (hash, blocklist_hash, idx),
|
|
FOREIGN KEY(blocklist_hash) REFERENCES blocklists(blocklist_hash) ON DELETE CASCADE DEFERRABLE INITIALLY DEFERRED
|
|
) STRICT
|
|
;
|