From: Tom Lane <tgl@sss.pgh.pa.us>
To: Noah Misch <noah@leadboat.com>
Cc: pgsql-committers@lists.postgresql.org
Subject: Re: pgsql: Prevent concurrent SimpleLruTruncate() for any given SLRU.
Date: Sat, 15 Aug 2020 16:39:05 -0400
Message-ID: <921383.1597523945@sss.pgh.pa.us> (raw)
In-Reply-To: <E1k6zqo-0008V3-U7@gemulon.postgresql.org>
References: <E1k6zqo-0008V3-U7@gemulon.postgresql.org>
Noah Misch <noah@leadboat.com> writes:
> Prevent concurrent SimpleLruTruncate() for any given SLRU.
I find it fairly scary that you've changed enum LockTagType in the
back branches. Are we quite certain that no extensions have compiled-in
values of that enum?
Safer from an ABI standpoint would be to add the new value at the end,
at least in the back branches.
regards, tom lane
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To: pgsql-committers@postgresql.org
Cc: tgl@sss.pgh.pa.us, noah@leadboat.com, pgsql-committers@lists.postgresql.org
Subject: Re: pgsql: Prevent concurrent SimpleLruTruncate() for any given SLRU.
In-Reply-To: <921383.1597523945@sss.pgh.pa.us>
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