Enable parallel query on EXPLAIN ANALYZE (#4325)
Enable parallel query on EXPLAIN ANALYZE (#4325)

It seems that we forgot to pass the revelant
flag to enable Postgres' parallel query
capabilities on the shards when user does
EXPLAIN ANALYZE on a distributed table.
citusdata/citus,citusdata/citus,citusdata/citus,citusdata/citus,citusdata/citus