/etc/apt/apt.conf.d/01autoremove-postgresql is in postgresql-common 173ubuntu0.1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 | // File installed by postgresql-common. Currently not updated automatically,
// but might be in future releases.
//
// We mark all PostgreSQL packages as NeverAutoRemove because otherwise apt
// would remove the old postgresql-x.y package when the "postgresql" meta
// package changes its dependencies to a new version, rendering the old
// database cluster inaccessible. As access to the cluster might depend on
// other modules (like datatypes), we use a pretty wide pattern here. We might
// tighten this to match only actually used PostgreSQL versions in the future.
APT
{
NeverAutoRemove
{
"^postgresql-";
};
};
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