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In-Reply-To: 
 <CAN4CZFP9XsTXijqxtK7v9Hgad3jQN-m+wBve0azdi3QkheJv7Q@mail.gmail.com>
From: Baji Shaik <baji.pgdev@gmail.com>
Date: Wed, 24 Jun 2026 18:22:20 -0500
Message-ID: 
 <CA+fm-RPjp8fC-w50PApyhrfMqY4SA0zT5s1Nq=+03+ALcf+3+A@mail.gmail.com>
Subject: Re: uuidv7 improperly accepts dates before 1970-01-01
To: Zsolt Parragi <zsolt.parragi@percona.com>
Cc: pgsql-hackers@lists.postgresql.org
Content-Type: multipart/mixed; boundary="0000000000007a147306550826e0"
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Thank you Masahiko, Tristan, Christophe, and Zsolt for the reviews and
feedback. Addressing the feedback in a single email.

Attached v2 addressing the feedback:

- Moved infinity check before timestamp arithmetic [Masahiko]
- Used INT64CONST() for the 48-bit constant [Masahiko]
- Added documentation for the valid timestamp range [Masahiko, Christophe]
- Added a test for '292230 years' to cover the overflow path
 caught by pg_add_s64_overflow() [Zsolt Parragi]

0001 - Reject infinite intervals
0002 - Reject pre-epoch timestamps (with overflow-safe epoch conversion)
0003 - Reject timestamps beyond the 48-bit limit

Let me know if I have missed anything.

Thanks,
Baji Shaik.

--0000000000007a147206550826de
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<div dir=3D"ltr"><div dir=3D"ltr">Thank you Masahiko, Tristan, Christophe, =
and Zsolt for the reviews and</div><div>feedback. Addressing=C2=A0the feedb=
ack in a single email.</div><div class=3D"gmail_quote gmail_quote_container=
"><br>Attached v2 addressing the feedback:<br><br>- Moved infinity check be=
fore timestamp arithmetic [Masahiko]<br>- Used INT64CONST() for the 48-bit =
constant [Masahiko]<br>- Added documentation for the valid timestamp range =
[Masahiko, Christophe]<br>- Added a test for &#39;292230 years&#39; to cove=
r the overflow path<br>=C2=A0caught by pg_add_s64_overflow() [Zsolt Parragi=
]<br><br>0001 - Reject infinite intervals<br>0002 - Reject pre-epoch timest=
amps (with overflow-safe epoch conversion)<br><div>0003 - Reject timestamps=
 beyond the 48-bit limit=C2=A0</div><div><br></div><div>Let me know if I ha=
ve missed anything.</div><div><br></div><div>Thanks,<br>Baji Shaik.</div></=
div></div>

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