Re: Postgres Updating only changed columns against entire row

On 7/29/22 01:19, Debraj Manna wrote:

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?

I'll counter with my own question: why would you go through all the extra coding effort (which leads to more places that you can make a mistake, like accidentally typing metadata='meeta')?

Also, the parentheses are superfluous in this case.