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Re: [Commits] Rev 3062: Fixed LP bug #801536. in file:///home/igor/maria/maria-5.3-merge-tmp/

To: maria-developers@xxxxxxxxxxxxxxxxxxx
From: Timour Katchaounov <timour@xxxxxxxxxxxx>
Date: Mon, 27 Jun 2011 13:56:16 +0300
In-reply-to: <20110627045533.517E0280AE2@sophia.site>
User-agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.17) Gecko/20110516 Thunderbird/3.1.10

Igor,

Ok to push in the sense that the new patch cannot any more
result in overflow. Both the old and new code are not equivalent.
Given there is no comment, I cannot fully understand whether the
change produces at least as good estimate of the record length
as the old patch.

Could you please add some general comment to the whole
function how do we compute the field length.

Timour


On 27.06.2011 07:55, Igor Babaev wrote:

At file:///home/igor/maria/maria-5.3-merge-tmp/

------------------------------------------------------------
revno: 3062
revision-id: igor@xxxxxxxxxxxx-20110627045532-663o9eih0flql0n6
parent: igor@xxxxxxxxxxxx-20110625210227-kdneawayskx5jl4q
committer: Igor Babaev<igor@xxxxxxxxxxxx>
branch nick: maria-5.3-merge-tmp
timestamp: Sun 2011-06-26 21:55:32 -0700
message:
   Fixed LP bug #801536.
   Ensured valid calculations of the estimates stored in JOIN_TAB::used_fieldlength.