duplicati/Duplicati/Library/Main/Database/Database schema/6. Optimize FileSetEntry-Table.sql
FootStark 568cc60856 Fixed lookup of a file's last entry during backup
- Fixed SQL to create temp table for lookup of last backup's file
entries
- Removed temp table by writing directly to internal lookup struct.
- Direct lookup of single file entries from DB
2016-05-06 00:14:03 +02:00

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SQL

BEGIN TRANSACTION;
DROP INDEX "FilesetentryIndex";
ALTER TABLE "FilesetEntry"
RENAME TO "UPGRADE_FilesetEntry";
-- ["WITHOUT ROWID" works with SQLite v3.8.2 (eq System.Data.SQLite v1.0.90.0, rel 2013-12-23) and later]
CREATE TABLE "FilesetEntry" (
"FilesetID" INTEGER NOT NULL,
"FileID" INTEGER NOT NULL,
"Lastmodified" INTEGER NOT NULL,
CONSTRAINT "FilesetEntry_PK_FilesetIdFileId" PRIMARY KEY ("FilesetID", "FileID")
) {#if sqlite_version >= 3.8.2} WITHOUT ROWID {#endif};
INSERT INTO "FilesetEntry" ("FilesetID", "FileID", "Lastmodified")
SELECT "FilesetID", "FileID", "Lastmodified"
FROM "UPGRADE_FilesetEntry";
DROP TABLE "UPGRADE_FilesetEntry";
/* Improved reverse lookup for joining Fileset and File table */
CREATE INDEX "FilesetentryFileIdIndex" on "FilesetEntry" ("FileID");
UPDATE "Version" SET "Version" = 6;
COMMIT;
VACUUM;