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From: Tom Lane <tgl@sss.pgh.pa.us>
To: gkchinna.oracle@gmail.com
cc: pgsql-bugs@lists.postgresql.org
Subject: Re: BUG #18455: DST information is flagged wrongly
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Comments: In-reply-to Tom Lane <tgl@sss.pgh.pa.us>
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I wrote:
> Ah ... having now refreshed my memory, the answer is that RHEL
> and Apple are distributing "rearguard" tzdata files, whereas
> ours are built with the main ("vanguard") data model.

Further to that ... on recent Fedora I get

$ zdump -v Europe/Dublin | grep 2024
Europe/Dublin  Sun Mar 31 00:59:59 2024 UT =3D Sun Mar 31 00:59:59 2024 GM=
T isdst=3D1 gmtoff=3D0
Europe/Dublin  Sun Mar 31 01:00:00 2024 UT =3D Sun Mar 31 02:00:00 2024 IS=
T isdst=3D0 gmtoff=3D3600
Europe/Dublin  Sun Oct 27 00:59:59 2024 UT =3D Sun Oct 27 01:59:59 2024 IS=
T isdst=3D0 gmtoff=3D3600
Europe/Dublin  Sun Oct 27 01:00:00 2024 UT =3D Sun Oct 27 01:00:00 2024 GM=
T isdst=3D1 gmtoff=3D0

So Red Hat is indeed moving in the direction of adopting the vanguard
data; they just haven't pulled that trigger yet in RHEL.

			regards, tom lane