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From: Tom Lane <[email protected]>
To: Adrian Klaver <[email protected]>
Cc: Sebastien Flaesch <[email protected]>
Cc: M Tarkeshwar Rao <[email protected]>
Cc: [email protected] <[email protected]>
Subject: Re: After upgrading libpq, the same function(PQftype) call returns a different OID
Date: Wed, 19 Mar 2025 13:22:47 -0400
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>
References: <PAWPR07MB1009569596278D85AC691BBF4AEDD2@PAWPR07MB10095.eurprd07.prod.outlook.com>
	<[email protected]>
	<DBAP191MB1289124F5D8690DF3F72F62CB0DC2@DBAP191MB1289.EURP191.PROD.OUTLOOK.COM>
	<[email protected]>
	<DBAP191MB1289C92E15014C2627C49BEBB0D92@DBAP191MB1289.EURP191.PROD.OUTLOOK.COM>
	<[email protected]>

Adrian Klaver <[email protected]> writes:
> On 3/18/25 23:41, Sebastien Flaesch wrote:
>> I was not expecting this file to be in a "server" folder, when it's to 
>> be used for client apps.

> Not surprising. As I understand it this is the code used to build the 
> type entries in the system catalog pg_type.

More the other way around: pg_type_d.h is built from the authoritative
source files pg_type.h and pg_type.dat, according to the process
described here:

https://www.postgresql.org/docs/devel/bki.html

>> And still, I do not trust the content.

Why not?  If it's the "Backwards compatibility" comment that's
bothering you, a look at pg_type.h will show you that that's
only intended to apply to the CASHOID and LSNOID symbols.
Everything below that in pg_type_d.h is machine-generated.

			regards, tom lane

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