123123

ZelWiki.Repository/Scripts/TruncateAllPageRevisions.sql

@@ -1,4 +1,3 @@
--- Deleting non-current page revisions
 DELETE FROM PageRevision
 WHERE EXISTS (
     SELECT 1
@@ -11,7 +10,6 @@ WHERE EXISTS (
     AND PageRevision.Revision < MostRecent.MaxRevision
 );
 
--- Deleting non-current attachments.
 DELETE FROM PageRevisionAttachment
 WHERE EXISTS (
     SELECT 1
@@ -25,7 +23,6 @@ WHERE EXISTS (
     AND PageRevisionAttachment.FileRevision < MostRecent.MaxFileRevision
 );
 
--- Deleting non-current page revision attachments
 DELETE FROM PageRevisionAttachment
 WHERE EXISTS (
     SELECT 1
@@ -39,7 +36,6 @@ WHERE EXISTS (
     AND PageRevisionAttachment.PageRevision < MostRecent.MaxPageRevision
 );
 
--- Deleting non-current page file revisions.
 DELETE FROM PageFileRevision
 WHERE EXISTS (
     SELECT 1
@@ -52,19 +48,16 @@ WHERE EXISTS (
     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;