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Re: c29706f: MDEV-17286 Decimal field multiplication bug.

To: maria-developers@xxxxxxxxxxxxxxxxxxx
From: Sergei Golubchik <serg@xxxxxxxxxxx>
Date: Mon, 29 Oct 2018 16:17:26 +0100
Cc: holyfoot@xxxxxxxxxxx
In-reply-to: <20181023212855.2AC35140D7F@nebo.localdomain>
User-agent: Mutt/1.7.2 (2016-11-26)

Hi, Alexey!

On Oct 24, Alexey Botchkov wrote:
> revision-id: c29706f7560148488791acca3c92dde1b188334e (mariadb-5.5.61-32-gc29706f)
> parent(s): e31e697f17f79ffa6913499e7e2d29866f24b475
> committer: Alexey Botchkov
> timestamp: 2018-10-24 01:26:49 +0400
> message:
> 
> MDEV-17286 Decimal field multiplication bug.

it's MDEV-17256 :)

> 
> We should clear trailing zeroes in frac part. Otherwise
> that tail is growing quickly and forces unnecessary truncating of
> arguments.

I don't understand this, sorry. Could you elaborate, please?
I understand the "tail is growing quickly" part. How does it "force
unnecessary truncating of arguments"?

Regards,
Sergei
Chief Architect MariaDB
and security@xxxxxxxxxxx