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From: Debraj Manna <[email protected]>
To: pgsql-admin <[email protected]>
Subject: Do postgres use implicit transaction in UPDATE ... RETURNING queries?
Date: Fri, 29 Nov 2024 15:35:30 +0530
Message-ID: <CAF6DVKNEbSXLVOs=BBNxhQ_+pjQJL8uMrwx9GWHNyAZyvirvmA@mail.gmail.com> (raw)

Can someone let me know if Postgres 15 uses implicit transactions for
UPDATE...RETURNING queries?

For example, is there any differences between the two queries

BEGIN;UPDATE counterSET value = value + 1
RETURNING value;COMMIT;

and

UPDATE counterSET value = value + 1
RETURNING value;

Table is like below

CREATE TABLE IF NOT EXISTS counter
(
    value      bigint PRIMARY KEY NOT NULL DEFAULT 0,
    updated_at TIMESTAMPTZ        NOT NULL DEFAULT CURRENT_TIMESTAMP
);

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