I saw the author wrote Hint: You should add a database index on messages.created_at., which I've tried but performance is still very very slow right now.
Maybe i'm misunderstanding it. I'm suppose to add :created_at index to the messages database table, right?
Example: add_index(:messages, :created_at)
I saw the author wrote
Hint: You should add a database index on messages.created_at., which I've tried but performance is still very very slow right now.Maybe i'm misunderstanding it. I'm suppose to add
:created_atindex to themessagesdatabase table, right?Example:
add_index(:messages, :created_at)