* Bryan Tong Minh <bryan.tongm...@gmail.com> [Thu, 2 Dec 2010 19:38:47 +0100]: > On Thu, Dec 2, 2010 at 6:23 PM, Dmitriy Sintsov <ques...@rambler.ru> > wrote: > > So probably the core patch is > > the only efficient way to solve my problem? > > > You can always supply a database patch with your extension to add > indices you need to core tables. > Indices are not hard to add, that's true. However, even with indexes the GROUP BY rev_text_id query on large revision set is slow. I probably will have to patch Revision::newNullRevision to add a new field value there (for the existing it is possible to fill the new field with UPDATE, however there will be new null revisions). Dmitriy
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