mlevvy

List<String> stringList  = Arrays.asList("a", "b", "c", "ddd");
int result = stringList.stream().reduce(0, (acc, element ) -> acc + element.length(),(c1, c2) -> c1 + c2);

mlevvy

package pl.klkl

import groovy.transform.CompileStatic
import spock.lang.Specification

class GroovySpreadOperatorTest extends Specification {

    interface Service {
        List<Integer> heavyOperation()
    }

mlevvy

create or replace view feedback_mentor as
with mentor_rating as (select
  mentor_id,
  count(fe.mentor_id) as RATING_COUNT,
  avg(fe.answer::integer) as AVG_SCORE,
  string_agg(fe.answer , ',') as SCORES,
  string_agg('"' || fe.comment || '"' , ';') as COMMENTS
from
  feedback fe
where