On Friday, October 14, 2016 at 10:53:36 AM UTC-7, Walmir Neto wrote:
>
> Sequel::Postgres::Database (0.9ms) SELECT * FROM "employees"
> Sequel::Postgres::Database (0.9ms) SELECT * FROM "users" WHERE "id" =
> 157
> Sequel::Postgres::Database (0.8ms) SELECT * FROM "users" WHERE "id" =
> 158
> Sequel::Postgres::Database (0.7ms) SELECT * FROM "users" WHERE "id" =
> 159
> Sequel::Postgres::Database (0.7ms) SELECT * FROM "users" WHERE "id" =
> 162
> Sequel::Postgres::Database (0.7ms) SELECT * FROM "users" WHERE "id" =
> 163
> Sequel::Postgres::Database (0.8ms) SELECT * FROM "users" WHERE "id" =
> 160
> Sequel::Postgres::Database (0.8ms) SELECT * FROM "users" WHERE "id" =
> 161
> Sequel::Postgres::Database (1.0ms) SELECT * FROM "users" WHERE "id" =
> 1674
> Sequel::Postgres::Database (1.3ms) SELECT * FROM "users" WHERE "id" =
> 174
> Sequel::Postgres::Database (0.7ms) SELECT * FROM "users" WHERE "id" =
> 1678
>
> Anybody knows how do I optimize queries above?
>
If you were doing something like:
Employee.all{|e| e.user}
switch to:
Employee.eager(:user).all{|e| e.user}
Or use the tactical_eager_loading plugin.
Thanks,
Jeremy
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