Top "Cost-based-optimizer" questions

PostgreSQL - fetch the row which has the Max value for a column

I'm dealing with a Postgres table (called "lives") that contains records with columns for time_stamp, usr_id, transaction_id, …

sql postgresql query-optimization cbo cost-based-optimizer
sum over a list of tensors in tensorflow

I have a deep neural network where the weights between layers are stored in a list. layers[j].weights I …

python tensorflow cost-based-optimizer