Horton

Re: Alignment padding bytes in arrays vs the planner

Robert Haas <robertmhaas@gmail.com>

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From: Robert Haas <robertmhaas@gmail.com>
To: Noah Misch <noah@leadboat.com>
Cc: Tom Lane <tgl@sss.pgh.pa.us>, pgsql-hackers@postgresql.org
Date: 2011-05-24T18:17:02Z
Lists: pgsql-hackers 
On Tue, May 24, 2011 at 2:11 PM, Noah Misch <noah@leadboat.com> wrote:
>> OK, I can't see what's broken.  Help?
>
> 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.
 8.2 doesn't have this code.

-- 
Robert Haas
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