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Re: 980a5c31880: MDEV-14572: Assertion `! is_set()' failed in Diagnostics_area::set_eof_status upon EXPLAIN UPDATE in PS

To: maria-developers@xxxxxxxxxxxxxxxxxxx
From: Sergei Golubchik <serg@xxxxxxxxxxx>
Date: Sun, 28 Jan 2018 14:45:30 +0100
Cc: sanja@xxxxxxxxxxx
In-reply-to: <5a3d01dc.478f1c0a.bff99.27c7@mx.google.com>
User-agent: Mutt/1.7.2 (2016-11-26)

Hi, Oleksandr!

On Dec 22, Oleksandr Byelkin wrote:
> revision-id: 980a5c318803d6aa7355e019869597976dcf19bf (mariadb-10.0.33-37-g980a5c31880)
> parent(s): 042f763268c0f209e7c12e0a6a72bb5d204dfe29
> author: Oleksandr Byelkin
> committer: Oleksandr Byelkin
> timestamp: 2017-12-22 14:00:10 +0100
> message:
> 
> MDEV-14572: Assertion `! is_set()' failed in Diagnostics_area::set_eof_status upon EXPLAIN UPDATE in PS
> 
> Restore EXPAIN flag in SELECT_LEX before execution multi-update by flag in LEX
> (the same but in other way made before INSERT/DELETE/SELECT)

Please explain what was the reason for the bug, why the status was set
twice, and how your change fixes it.

Regards,
Sergei
Chief Architect MariaDB
and security@xxxxxxxxxxx