True (see here: https://www.postgresql.org/docs/9.6/static/parallel-plans.html https://www.postgresql.org/docs/9.6/static/parallel-plans.ht... ), but in Postgre

True (see here: https://www.postgresql.org/docs/9.6/static/parallel-plans.html https://www.postgresql.org/docs/9.6/static/parallel-plans.ht... ), but in PostgreSQL 10 there are Parallel Bitmap Heap Scans and Parallel Index Scans (see here: http://rhaas.blogspot.com/2017/03/parallel-query-v2.html http://rhaas.blogspot.com/2017/03/parallel-query-v2.html ).