--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/SQLite/Plugins/PrepareIndex.sql	Wed Jul 04 08:16:29 2018 +0200
@@ -0,0 +1,156 @@
+CREATE TABLE GlobalProperties(
+       property INTEGER PRIMARY KEY,
+       value TEXT
+       );
+
+CREATE TABLE Resources(
+       internalId INTEGER PRIMARY KEY AUTOINCREMENT,
+       resourceType INTEGER,
+       publicId TEXT,
+       parentId INTEGER REFERENCES Resources(internalId) ON DELETE CASCADE
+       );
+
+CREATE TABLE MainDicomTags(
+       id INTEGER REFERENCES Resources(internalId) ON DELETE CASCADE,
+       tagGroup INTEGER,
+       tagElement INTEGER,
+       value TEXT,
+       PRIMARY KEY(id, tagGroup, tagElement)
+       );
+
+CREATE TABLE DicomIdentifiers(
+       id INTEGER REFERENCES Resources(internalId) ON DELETE CASCADE,
+       tagGroup INTEGER,
+       tagElement INTEGER,
+       value TEXT,
+       PRIMARY KEY(id, tagGroup, tagElement)
+       );
+
+CREATE TABLE Metadata(
+       id INTEGER REFERENCES Resources(internalId) ON DELETE CASCADE,
+       type INTEGER,
+       value TEXT,
+       PRIMARY KEY(id, type)
+       );
+
+CREATE TABLE AttachedFiles(
+       id INTEGER REFERENCES Resources(internalId) ON DELETE CASCADE,
+       fileType INTEGER,
+       uuid TEXT,
+       compressedSize INTEGER,
+       uncompressedSize INTEGER,
+       compressionType INTEGER,
+       uncompressedHash TEXT,
+       compressedHash TEXT,
+       PRIMARY KEY(id, fileType)
+       );              
+
+CREATE TABLE Changes(
+       seq INTEGER PRIMARY KEY AUTOINCREMENT,
+       changeType INTEGER,
+       internalId INTEGER REFERENCES Resources(internalId) ON DELETE CASCADE,
+       resourceType INTEGER,
+       date TEXT
+       );
+
+CREATE TABLE ExportedResources(
+       seq INTEGER PRIMARY KEY AUTOINCREMENT,
+       resourceType INTEGER,
+       publicId TEXT,
+       remoteModality TEXT,
+       patientId TEXT,
+       studyInstanceUid TEXT,
+       seriesInstanceUid TEXT,
+       sopInstanceUid TEXT,
+       date TEXT
+       ); 
+
+CREATE TABLE PatientRecyclingOrder(
+       seq INTEGER PRIMARY KEY AUTOINCREMENT,
+       patientId INTEGER REFERENCES Resources(internalId) ON DELETE CASCADE
+       );
+
+CREATE INDEX ChildrenIndex ON Resources(parentId);
+CREATE INDEX PublicIndex ON Resources(publicId);
+CREATE INDEX ResourceTypeIndex ON Resources(resourceType);
+CREATE INDEX PatientRecyclingIndex ON PatientRecyclingOrder(patientId);
+
+CREATE INDEX MainDicomTagsIndex1 ON MainDicomTags(id);
+-- The 2 following indexes were removed in Orthanc 0.8.5 (database v5), to speed up
+-- CREATE INDEX MainDicomTagsIndex2 ON MainDicomTags(tagGroup, tagElement);
+-- CREATE INDEX MainDicomTagsIndexValues ON MainDicomTags(value COLLATE BINARY);
+
+-- The 3 following indexes were added in Orthanc 0.8.5 (database v5)
+CREATE INDEX DicomIdentifiersIndex1 ON DicomIdentifiers(id);
+CREATE INDEX DicomIdentifiersIndex2 ON DicomIdentifiers(tagGroup, tagElement);
+CREATE INDEX DicomIdentifiersIndexValues ON DicomIdentifiers(value COLLATE BINARY);
+
+CREATE INDEX ChangesIndex ON Changes(internalId);
+
+
+
+-- New tables wrt. Orthanc core
+CREATE TABLE DeletedFiles(
+       uuid TEXT NOT NULL,        -- 0
+       fileType INTEGER,          -- 1
+       compressedSize INTEGER,    -- 2
+       uncompressedSize INTEGER,  -- 3
+       compressionType INTEGER,   -- 4
+       uncompressedHash TEXT,     -- 5
+       compressedHash TEXT        -- 6
+       );
+
+CREATE TABLE RemainingAncestor(
+       resourceType INTEGER NOT NULL,
+       publicId TEXT NOT NULL
+       );
+
+CREATE TABLE DeletedResources(
+       resourceType INTEGER NOT NULL,
+       publicId TEXT NOT NULL
+       );
+-- End of differences
+
+
+
+CREATE TRIGGER AttachedFileDeleted
+AFTER DELETE ON AttachedFiles
+BEGIN
+   INSERT INTO DeletedFiles VALUES(old.uuid, old.filetype, old.compressedSize,
+                                   old.uncompressedSize, old.compressionType,
+                                   old.uncompressedHash, old.compressedHash);
+END;
+
+
+CREATE TRIGGER ResourceDeleted
+AFTER DELETE ON Resources
+BEGIN
+   INSERT INTO DeletedResources VALUES(old.resourceType, old.publicId);
+END;
+
+
+-- Delete a parent resource when its unique child gets deleted 
+CREATE TRIGGER ResourceDeletedParentCleaning
+AFTER DELETE ON Resources
+FOR EACH ROW WHEN NOT EXISTS (SELECT 1 FROM Resources WHERE parentId = old.parentId)
+BEGIN
+  DELETE FROM Resources WHERE internalId = old.parentId;
+END;
+
+-- Signal that the deleted resource has a remaining parent, if the
+-- deleted resource has a sibling resource
+CREATE TRIGGER ResourceRemainingAncestorFound
+AFTER DELETE ON Resources
+FOR EACH ROW WHEN EXISTS (SELECT 1 FROM Resources WHERE parentId = old.parentId)
+BEGIN
+   INSERT INTO RemainingAncestor(resourceType, publicId)
+          SELECT resourceType, publicId FROM Resources WHERE internalId = old.parentId;
+END;
+
+
+CREATE TRIGGER PatientAdded
+AFTER INSERT ON Resources
+FOR EACH ROW WHEN new.resourceType = 0  -- The "0" corresponds to "OrthancPluginResourceType_Patient"
+BEGIN
+  INSERT INTO PatientRecyclingOrder VALUES (NULL, new.internalId);
+END;