public inbox for [email protected]
help / color / mirror / Atom feedMixed field in table 70.3
2+ messages / 2 participants
[nested] [flat]
* Mixed field in table 70.3
@ 2022-04-27 14:45 PG Doc comments form <[email protected]>
2022-04-27 16:50 ` Re: Mixed field in table 70.3 Tom Lane <[email protected]>
0 siblings, 1 reply; 2+ messages in thread
From: PG Doc comments form @ 2022-04-27 14:45 UTC (permalink / raw)
To: [email protected]; +Cc: [email protected]
The following documentation comment has been logged on the website:
Page: https://www.postgresql.org/docs/14/storage-page-layout.html
Description:
The 7th line states:
pd_pagesize_version uint16 2 bytes Page size and layout version number
information
In fact there are two smallints, so the table should show two attributes:
pd_pagesize uint16 2 bytes Page size
version uint16 2 bytes Layout version number information
^ permalink raw reply [nested|flat] 2+ messages in thread
* Re: Mixed field in table 70.3
2022-04-27 14:45 Mixed field in table 70.3 PG Doc comments form <[email protected]>
@ 2022-04-27 16:50 ` Tom Lane <[email protected]>
0 siblings, 0 replies; 2+ messages in thread
From: Tom Lane @ 2022-04-27 16:50 UTC (permalink / raw)
To: [email protected]; +Cc: [email protected]
PG Doc comments form <[email protected]> writes:
> Page: https://www.postgresql.org/docs/14/storage-page-layout.html
> The 7th line states:
> pd_pagesize_version uint16 2 bytes Page size and layout version number
> information
> In fact there are two smallints, so the table should show two attributes:
> pd_pagesize uint16 2 bytes Page size
> version uint16 2 bytes Layout version number information
No, I don't think so --- this documentation matches the actual code,
in bufpage.h:
...
LocationIndex pd_lower; /* offset to start of free space */
LocationIndex pd_upper; /* offset to end of free space */
LocationIndex pd_special; /* offset to start of special space */
uint16 pd_pagesize_version;
TransactionId pd_prune_xid; /* oldest prunable XID, or zero if none */
ItemIdData pd_linp[FLEXIBLE_ARRAY_MEMBER]; /* line pointer array */
...
regards, tom lane
^ permalink raw reply [nested|flat] 2+ messages in thread
end of thread, other threads:[~2022-04-27 16:50 UTC | newest]
Thread overview: 2+ messages (download: mbox.gz follow: Atom feed)
-- links below jump to the message on this page --
2022-04-27 14:45 Mixed field in table 70.3 PG Doc comments form <[email protected]>
2022-04-27 16:50 ` Tom Lane <[email protected]>
This inbox is served by agora; see mirroring instructions
for how to clone and mirror all data and code used for this inbox