# T0\_r0 from include, is it bad?

**URL:** <https://www.ruby-forum.com/t/t0-r0-from-include-is-it-bad/184701>\
**Category:** Rails\
**Created:** [March 7, 2010, 12:38am UTC](https://www.ruby-forum.com/t/t0-r0-from-include-is-it-bad/184701 "2010-03-07T00:38:34Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![fipa](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/f/9e8a1a/32.png) [@fipa](https://www.ruby-forum.com/u/fipa)\
**Post date:** [March 7, 2010, 12:38am UTC](https://www.ruby-forum.com/t/t0-r0-from-include-is-it-bad/184701/1 "2010-03-07T00:38:34Z")

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Hi,

Some of my queries that have includes get generated with t0\_r0. Is it  
something to avoid?

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**Author:** ![fipa](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/f/9e8a1a/32.png) [@fipa](https://www.ruby-forum.com/u/fipa)\
**Post date:** [March 7, 2010, 3:21am UTC](https://www.ruby-forum.com/t/t0-r0-from-include-is-it-bad/184701/2 "2010-03-07T03:21:01Z")

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On Sat, Mar 6, 2010 at 3:38 PM, Fernando P. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid)  
wrote:

> Some of my queries that have includes get generated with t0\_r0. Is it  
> something to avoid?

It’s completely normal. It’s how Active Record doing some bookkeeping  
to find with :include.

jeremy

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<div class="post-metadata">

**Author:** ![fipa](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/f/9e8a1a/32.png) [@fipa](https://www.ruby-forum.com/u/fipa)\
**Post date:** [March 7, 2010, 11:30am UTC](https://www.ruby-forum.com/t/t0-r0-from-include-is-it-bad/184701/3 "2010-03-07T11:30:36Z")

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> It’s completely normal. It’s how Active Record doing some bookkeeping  
> to find with :include.  
> Thanks.