pgsql: Fix MERGE tuple count with DO NOTHING

From: Alvaro Herrera <alvherre(at)alvh(dot)no-ip(dot)org>
To: pgsql-committers(at)lists(dot)postgresql(dot)org
Subject: pgsql: Fix MERGE tuple count with DO NOTHING
Date: 2022-11-17 17:57:14
Message-ID: E1ovj8T-000dKN-Eg@gemulon.postgresql.org
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Fix MERGE tuple count with DO NOTHING

Reporting tuples for which nothing is done is useless and goes against
the documented behavior, so don't do it.

Backpatch to 15.

Reported by: Luca Ferrari
Discussion: https://postgr.es/m/CAKoxK+42MmACUh6s8XzASQKizbzrtOGA6G1UjzCP75NcXHsiNw@mail.gmail.com

Branch
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master

Details
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https://git.postgresql.org/pg/commitdiff/6ff5aa129933fbde034c0d21c28cf05e052511f9

Modified Files
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src/backend/executor/nodeModifyTable.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

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