create table parted_sample_2 partition of parted_sample for values in (2);
explain (costs off)
select * from parted_sample tablesample bernoulli (100);
- QUERY PLAN
--------------------------------------------
- Append
- -> Sample Scan on parted_sample_1
- Sampling: bernoulli ('100'::real)
- -> Sample Scan on parted_sample_2
- Sampling: bernoulli ('100'::real)
-(5 rows)
+ QUERY PLAN
+-----------------------------------------------------
+ Remote Subquery Scan on all (datanode_1,datanode_2)
+ -> Append
+ -> Sample Scan on parted_sample_1
+ Sampling: bernoulli ('100'::real)
+ -> Sample Scan on parted_sample_2
+ Sampling: bernoulli ('100'::real)
+(6 rows)
drop table parted_sample, parted_sample_1, parted_sample_2;