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CREATE TABLE tab1 ( col1 integer PRIMARY KEY, col2 text NOT NULL ); INSERT INTO tab1 VALUES (1, 'pre-up'), (2, 'random');
CREATE TABLE
INSERT 0 2
WITH input(col1, col2) AS ( SELECT 1, text 'post_up' -- "whole row" ) , pre_upd AS ( UPDATE tab1 x SET (col1, col2) = (i.col1, i.col2) FROM input i JOIN tab1 y USING (col1) WHERE x.col1 = y.col1 RETURNING y.* ) TABLE pre_upd UNION ALL TABLE input;
col1
col2
1
pre-up
1
post_up
SELECT 2