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Re: get rid of RM_HEAP2_ID - Mailing list pgsql-hackers

From Michael Paquier
Subject Re: get rid of RM_HEAP2_ID
Date
Msg-id aPWSCnlH9y1DMTEP@paquier.xyz
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In response to Re: get rid of RM_HEAP2_ID  (Heikki Linnakangas <hlinnaka@iki.fi>)
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On Wed, Oct 15, 2025 at 05:39:38PM +0300, Heikki Linnakangas wrote:
> We could store xl_crc unaligned. IIRC all the structs that follow that are
> already stored unaligned.

If we do just that, would there be any downside in moving xl_crc to be
just after xl_prev?  That would keep the record assembling part
simpler, because XLogRecord is treated as a single object, where the
code relies on a MAXALIGN64() to make sure that the header is aligned.
--
Michael
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