In my table i have several columns with the id as primary key.
I am using a query like select * from note where conversation_id in ('id1','id2',....'id300');
This is an extreme case where i will be querying for around 300 ids..
And this ran in 15 ms.
I tried setting an index on conversation_id but the time taken by it is still the same.
How can i improve the performance of this in clause.