Kenneth Skovhede
aca4ed95cc
Rewrote the backup and restore to work within a transaction as that speeds things up a lot. Rewrote the backup procedure to generate the file list from the database, instead of on-the-fly as that is more efficient. Re-arranged the database to use less storage on large sets of unchanged files.
135 lines
2.6 KiB
SQL
135 lines
2.6 KiB
SQL
/*
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The operation table is a local table
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that is used to record all operations
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for later debug inspection, and can be
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used to map log messages to an operation
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*/
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CREATE TABLE "Operation" (
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"ID" INTEGER PRIMARY KEY,
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"Description" TEXT NOT NULL,
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"Timestamp" DATETIME NOT NULL
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);
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/*
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The remote volumes table keeps track
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of the state of all known volumes
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*/
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CREATE TABLE "Remotevolume" (
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"OperationID" INTEGER NOT NULL,
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"Name" TEXT PRIMARY KEY,
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"Type" TEXT NOT NULL,
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"Size" INTEGER NULL,
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"Hash" TEXT NULL,
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"State" TEXT NOT NULL
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);
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/*
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The fileset is a list of files contained
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in a single operation, grouped by an
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operationID
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*/
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CREATE TABLE "OperationFileset" (
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"OperationID" INTEGER NOT NULL,
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"FilesetID" INTEGER NOT NULL,
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"Scantime" DATETIME NOT NULL
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);
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CREATE TABLE "Fileset" (
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"ID" INTEGER PRIMARY KEY,
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"Path" TEXT NOT NULL,
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"BlocksetID" INTEGER NOT NULL,
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"MetadataID" INTEGER NOT NULL
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);
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/*
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The blocklist hashes are hashes of
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fragments of the blocklists
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*/
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CREATE TABLE "BlocklistHash" (
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"BlocksetID" INTEGER NOT NULL,
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"Index" INTEGER NOT NULL,
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"Hash" TEXT NOT NULL
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);
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/*
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The blockset is a list of blocks
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Note that Length is actually redundant,
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it can be calculated by
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SUM(Blockset.Size)
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The FullHash is the hash of the entire
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blob when reconstructed
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*/
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CREATE TABLE "Blockset" (
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"ID" INTEGER PRIMARY KEY,
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"Length" INTEGER NOT NULL,
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"FullHash" TEXT NOT NULL
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);
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/*
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The elements of a blocklist,
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the hash is the block hash
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*/
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CREATE TABLE "BlocksetEntry" (
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"BlocksetID" INTEGER NOT NULL,
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"Index" INTEGER NOT NULL,
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"BlockID" INTEGER NOT NULL
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);
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/*
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The individual block hashes,
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mapped to the containing file
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*/
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CREATE TABLE "Block" (
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"ID" INTEGER PRIMARY KEY,
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"Hash" TEXT NOT NULL,
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"Size" INTEGER NOT NULL,
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"File" TEXT NOT NULL
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);
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/*
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A metadata set
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*/
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CREATE TABLE "Metadataset" (
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"ID" INTEGER PRIMARY KEY,
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"BlocksetID" INTEGER NOT NULL
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);
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/*
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Operations performed on the backend
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*/
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CREATE TABLE "RemoteOperation" (
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"ID" INTEGER PRIMARY KEY,
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"OperationID" INTEGER NOT NULL,
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"Timestamp" DATETIME NOT NULL,
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"Operation" TEXT NOT NULL,
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"Path" TEXT NOT NULL,
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"Data" BLOB NULL
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);
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/*
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Logged events
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*/
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CREATE TABLE "LogData" (
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"ID" INTEGER PRIMARY KEY,
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"OperationID" INTEGER NOT NULL,
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"Timestamp" DATETIME NOT NULL,
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"Type" TEXT NOT NULL,
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"Message" TEXT NOT NULL,
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"Exception" TEXT NULL
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);
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/*
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Internal version tracking
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*/
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CREATE TABLE "Version" (
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"ID" INTEGER PRIMARY KEY,
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"Version" INTEGER NOT NULL
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);
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INSERT INTO "Version" ("Version") VALUES (0);
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