添加项目文件。

TightWiki.Repository/Scripts/TruncateAllPageRevisions.sql

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+-- Deleting non-current page revisions
+DELETE FROM PageRevision
+WHERE EXISTS (
+    SELECT 1
+    FROM (
+        SELECT PageId, MAX(Revision) AS MaxRevision
+        FROM PageRevision
+        GROUP BY PageId
+    ) AS MostRecent
+    WHERE PageRevision.PageId = MostRecent.PageId
+    AND PageRevision.Revision < MostRecent.MaxRevision
+);
+
+-- Deleting non-current attachments.
+DELETE FROM PageRevisionAttachment
+WHERE EXISTS (
+    SELECT 1
+    FROM (
+        SELECT PageFileId, PageId, MAX(FileRevision) AS MaxFileRevision
+        FROM PageRevisionAttachment
+        GROUP BY PageId, PageFileId
+    ) AS MostRecent
+    WHERE PageRevisionAttachment.PageFileId = MostRecent.PageFileId
+    AND PageRevisionAttachment.PageId = MostRecent.PageId
+    AND PageRevisionAttachment.FileRevision < MostRecent.MaxFileRevision
+);
+
+-- Deleting non-current page revision attachments
+DELETE FROM PageRevisionAttachment
+WHERE EXISTS (
+    SELECT 1
+    FROM (
+        SELECT PageFileId, PageId, MAX(PageRevision) AS MaxPageRevision
+        FROM PageRevisionAttachment
+        GROUP BY PageId, PageFileId
+    ) AS MostRecent
+    WHERE PageRevisionAttachment.PageFileId = MostRecent.PageFileId
+    AND PageRevisionAttachment.PageId = MostRecent.PageId
+    AND PageRevisionAttachment.PageRevision < MostRecent.MaxPageRevision
+);
+
+-- Deleting non-current page file revisions.
+DELETE FROM PageFileRevision
+WHERE EXISTS (
+    SELECT 1
+    FROM (
+        SELECT PageFileId, MAX(Revision) AS MaxPageRevision
+        FROM PageFileRevision
+        GROUP BY PageFileId
+    ) AS MostRecent
+    WHERE PageFileRevision.PageFileId = MostRecent.PageFileId
+    AND PageFileRevision.Revision < MostRecent.MaxPageRevision
+);
+
+-- Delete orphaned PageFileRevision
+DELETE FROM PageFileRevision
+WHERE PageFileId NOT IN (
+    SELECT PageFileId FROM PageRevisionAttachment
+);
+
+-- Delete orphaned PageFile
+DELETE FROM PageFile
+WHERE Id NOT IN (
+    SELECT PageFileId FROM PageRevisionAttachment
+);
+
+-- Assuming everything else worked, lets set all of the revisions back to 1.
+UPDATE [Page] SET Revision = 1;
+UPDATE PageRevision SET Revision = 1;
+UPDATE PageRevisionAttachment SET PageRevision = 1, FileRevision = 1;
+UPDATE PageFileRevision SET Revision = 1;
+UPDATE PageFile SET Revision = 1;