pgsql: Improve snapmgr.c comment

From: Heikki Linnakangas <heikki(dot)linnakangas(at)iki(dot)fi>
To: pgsql-committers(at)lists(dot)postgresql(dot)org
Subject: pgsql: Improve snapmgr.c comment
Date: 2025-03-11 21:29:21
Message-ID: E1ts7A9-001zao-0K@gemulon.postgresql.org
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Improve snapmgr.c comment

Add more details on the different kinds of snapshots, how to use them,
and how the active snapshot stack works.

Discussion: https://www.postgresql.org/message-id/7c56f180-b9e1-481e-8c1d-efa63de3ecbb@iki.fi

Branch
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master

Details
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https://git.postgresql.org/pg/commitdiff/043745c3a01fece996e4818945138320d10261bf

Modified Files
--------------
src/backend/utils/time/snapmgr.c | 59 ++++++++++++++++++++++++++++++++++++++++
1 file changed, 59 insertions(+)

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