Which query is good - IN or OR

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От AI Rumman
Тема Which query is good - IN or OR
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Msg-id AANLkTik0Scd+2=onn91=9Et11+fBsxQBAvHt7iD+OuEQ@mail.gmail.com
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Ответы Re: Which query is good - IN or OR
Список pgsql-general
A simple query I can write in any of the following two ways:

1. 
Select col1
from table
where col2 in ('A','B');

2.
Select col1
from table
where
 col2 = 'A'
or  col2 = 'B'

Here IN condition may be more than two.
I need to know which one is good for good performance.

Any idea please.

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