How to perform 'Connect to PostgreSQL' in Clojure.
;; Task: Connect to PostgreSQL
;; Language: Clojure
defn connect_to_postgresql() (
;; Implementation for Connect to PostgreSQL
def result = ...; ;; Initialize variable
;; TODO: Implement core logic here
;; Step 1: Prepare data
;; Step 2: Process Connect to PostgreSQL
println("Done");
)