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Re: Alignment padding bytes in arrays vs the planner - Mailing list pgsql-hackers

From Robert Haas
Subject Re: Alignment padding bytes in arrays vs the planner
Date
Msg-id BANLkTi=a7N3T3EBac9O=g5hmQMELU_Ppyw@mail.gmail.com
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In response to Re: Alignment padding bytes in arrays vs the planner  (Noah Misch <noah@leadboat.com>)
Responses Re: Alignment padding bytes in arrays vs the planner  (Tom Lane <tgl@sss.pgh.pa.us>)
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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
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company

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