https://bugzilla.wikimedia.org/show_bug.cgi?id=67533
Sergey Vladimirov <vlser...@gmail.com> changed:
What |Removed |Added
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CC| |vlser...@gmail.com
--- Comment #1 from Sergey Vladimirov <vlser...@gmail.com> ---
There is a very serious problem with offset parameter. "offset" parameter means
not key/value offset, but rather row number offset. Because of that it is
possible to create queries that creates full-index-scans using large offset
values.
Current state-of-art is usage of values anchor, not pages (even in mediawiki
API). It may be entity id anchor or claim id anchor.
See also:
- details of doModifyLimitQuery implementation for MySQL:
http://www.doctrine-project.org/api/dbal/2.1/source-class-Doctrine.DBAL.Platforms.MsSqlPlatform.html#_doModifyLimitQuery
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