/*+Parallel(p1 8 hard) IndexScan(p2) */
EXPLAIN (COSTS false) SELECT * FROM p1 join p2 on p1.id = p2.id;
--- seqscan doesn't harm parallelism
+-- Parallel sequential scan
/*+Parallel(p1 8 hard) SeqScan(p1) */
EXPLAIN (COSTS false) SELECT * FROM p1 join p2 on p1.id = p2.id;
--- Index partial scan is not handled yet.
+-- Parallel index scan
/*+Parallel(p1 8 hard) IndexScan(p1) */
EXPLAIN (COSTS false) SELECT * FROM p1 join p2 on p1.id = p2.id;