Postgres Updating only changed columns against entire row - Mailing list pgsql-admin

From Debraj Manna
Subject Postgres Updating only changed columns against entire row
Date
Msg-id CAF6DVKMGLnWB4tzWduQXXR8vtyu1DFGi9nh3u++szWZJsvSPTQ@mail.gmail.com
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Re: Postgres Updating only changed columns against entire row
List pgsql-admin

Let's say I have a table like below

CREATE TABLE empl(   id SERIAL PRIMARY KEY,   name VARCHAR NOT NULL,   address VARCHAR NOT NULL,   status int NOT NULL,   metadata varchar NOT NULL
);

and it has data like

(2, 'tuk', 'ind', 1, 'meta')
...
(200, 'tuka', 'eng', 2, 'meta2')
  1. update empl set status = 2 where (id = 2);
  2. update empl set status = 2, name='tuk', address='ind', metadata='meta' where (id = 2);

Can someone let me know if there are any advantages of doing #1 over #2 assuming there are no other indices or triggers on the table? Which is generally preferred?

Postgres Version - 10.17

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