Re: Alignment padding bytes in arrays vs the planner

Robert Haas <robertmhaas@gmail.com>

From: Robert Haas <robertmhaas@gmail.com>
To: Tom Lane <tgl@sss.pgh.pa.us>
Cc: Noah Misch <noah@leadboat.com>, pgsql-hackers@postgresql.org
Date: 2011-05-24T18:21:02Z
Lists: pgsql-hackers
On Tue, May 24, 2011 at 2:18 PM, Tom Lane <tgl@sss.pgh.pa.us> wrote:
> Robert Haas <robertmhaas@gmail.com> writes:
>> On Tue, May 24, 2011 at 2:11 PM, Noah Misch <noah@leadboat.com> wrote:
>>> QTN2QT() allocates memory for a TSQuery using palloc().  TSQuery contains an
>>> array of QueryItem, which contains three bytes of padding between its first and
>>> second members.  Those bytes don't get initialized, so we have unpredictable
>>> content in the resulting datum.
>
>> OK, so I guess this needs to be applied and back-patched to 8.3, then.
>
> Yeah.  I'm in process of doing that, actually.

Excellent.  Are you going to look at MauMau's patch for bug #6011 also?

-- 
Robert Haas
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