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025905fcdf
Switch the database from LevelDB to SQLite, for greater stability and simpler code. Co-authored-by: Tommy van der Vorst <tommy@pixelspark.nl> Co-authored-by: bt90 <btom1990@googlemail.com>
54 lines
2.2 KiB
SQL
54 lines
2.2 KiB
SQL
-- Copyright (C) 2025 The Syncthing Authors.
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--
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-- This Source Code Form is subject to the terms of the Mozilla Public
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-- License, v. 2.0. If a copy of the MPL was not distributed with this file,
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-- You can obtain one at https://mozilla.org/MPL/2.0/.
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-- Counts
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--
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-- Counts and sizes are maintained for each device, folder, type, flag bits
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-- combination.
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CREATE TABLE IF NOT EXISTS counts (
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folder_idx INTEGER NOT NULL,
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device_idx INTEGER NOT NULL,
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type INTEGER NOT NULL,
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local_flags INTEGER NOT NULL,
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count INTEGER NOT NULL,
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size INTEGER NOT NULL,
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deleted INTEGER NOT NULL, -- boolean
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PRIMARY KEY(folder_idx, device_idx, type, local_flags, deleted),
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FOREIGN KEY(device_idx) REFERENCES devices(idx) ON DELETE CASCADE,
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FOREIGN KEY(folder_idx) REFERENCES folders(idx) ON DELETE CASCADE
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) STRICT, WITHOUT ROWID
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;
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--- Maintain counts when files are added and removed using triggers
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CREATE TRIGGER IF NOT EXISTS counts_insert AFTER INSERT ON files
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BEGIN
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INSERT INTO counts (folder_idx, device_idx, type, local_flags, count, size, deleted)
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VALUES (NEW.folder_idx, NEW.device_idx, NEW.type, NEW.local_flags, 1, NEW.size, NEW.deleted)
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ON CONFLICT DO UPDATE SET count = count + 1, size = size + NEW.size;
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END
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;
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CREATE TRIGGER IF NOT EXISTS counts_delete AFTER DELETE ON files
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BEGIN
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UPDATE counts SET count = count - 1, size = size - OLD.size
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WHERE folder_idx = OLD.folder_idx AND device_idx = OLD.device_idx AND type = OLD.type AND local_flags = OLD.local_flags AND deleted = OLD.deleted;
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END
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;
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CREATE TRIGGER IF NOT EXISTS counts_update AFTER UPDATE OF local_flags ON files
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WHEN NEW.local_flags != OLD.local_flags
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BEGIN
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INSERT INTO counts (folder_idx, device_idx, type, local_flags, count, size, deleted)
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VALUES (NEW.folder_idx, NEW.device_idx, NEW.type, NEW.local_flags, 1, NEW.size, NEW.deleted)
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ON CONFLICT DO UPDATE SET count = count + 1, size = size + NEW.size;
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UPDATE counts SET count = count - 1, size = size - OLD.size
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WHERE folder_idx = OLD.folder_idx AND device_idx = OLD.device_idx AND type = OLD.type AND local_flags = OLD.local_flags AND deleted = OLD.deleted;
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END
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;
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DROP TRIGGER IF EXISTS counts_update_add -- tmp migration
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;
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DROP TRIGGER IF EXISTS counts_update_del -- tmp migration
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;
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