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I wrote these tests for my IMPALA-3987 patch, but other issues block that optimisations. These tests exercise an interesting corner case so I split them out into a separate patch. The functional tests exercise every join mode for nested loop join and hash join with an empty build side. The perf test exercises hash join with an empty build side. Testing: Made sure the tests passed with both partitioned and non-partitioned hash join implementations. Ran the targeted perf query through the single node perf run script to make sure it worked. Change-Id: I0a68cafec32011a47c569b254979601237e7f2a5 Reviewed-on: http://gerrit.cloudera.org:8080/4051 Reviewed-by: Tim Armstrong <tarmstrong@cloudera.com> Tested-by: Internal Jenkins
215 lines
4.5 KiB
Plaintext
215 lines
4.5 KiB
Plaintext
====
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---- QUERY
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# Right outer join with non-equi join predicates
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select straight_join a.id, b.id, a.int_col, b.int_col
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from alltypestiny a right outer join (values(1 as id, 1 as int_col)) b
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on a.id != b.id or a.int_col < b.int_col
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---- RESULTS
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6,1,0,1
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7,1,1,1
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0,1,0,1
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2,1,0,1
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3,1,1,1
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4,1,0,1
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5,1,1,1
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---- TYPES
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INT, TINYINT, INT, TINYINT
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====
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---- QUERY
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# Right semi join with non-equi join predicates
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select straight_join *
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from alltypesagg a right semi join (values((1 as id, 1 as int_col), (2,2))) b
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on a.id != b.id
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---- RESULTS
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1,1
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2,2
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---- TYPES
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TINYINT, TINYINT
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====
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---- QUERY
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# Right anti join with non-equi join predicates
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select straight_join *
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from alltypestiny a right anti join (values((1 as id, 1 as int_col),(2,2),(3,3))) b
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on a.id < b.id
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---- RESULTS
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---- TYPES
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TINYINT, TINYINT
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====
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---- QUERY
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# Full outer join with non-equi join predicates
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select straight_join a.id, b.id
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from alltypestiny a full outer join (values((1 as id), (100))) b
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on a.id != b.id
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---- RESULTS
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6,1
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6,100
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7,1
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7,100
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4,1
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4,100
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5,1
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5,100
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2,1
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2,100
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3,1
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3,100
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0,1
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0,100
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1,100
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---- TYPES
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INT, TINYINT
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====
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---- QUERY
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# Multi-way join query with right semi, right outer and full outer joins with
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# non-equi join predicates
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select straight_join *
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from alltypestiny a right semi join (values(1 as tinyint_col, 1 as id)) c
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on a.tinyint_col < c.tinyint_col
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right outer join (values(1 as bigint_col)) d
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on c.tinyint_col >= d.bigint_col
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full outer join (values((1 as id, 1 as int_col),(2,2),(3,3))) e
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on c.tinyint_col != e.id
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---- RESULTS
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1,1,1,2,2
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1,1,1,3,3
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NULL,NULL,NULL,1,1
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---- TYPES
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TINYINT, TINYINT, TINYINT, TINYINT, TINYINT
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====
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---- QUERY
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# Right semi join where the probe input is significantly smaller than the build input.
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select straight_join a.id, b.id
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from (values(1 as tinyint_col, 1 as id)) a right outer join alltypessmall b
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on a.tinyint_col != b.tinyint_col
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order by a.id, b.id
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limit 2
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---- RESULTS
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1,0
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1,2
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---- TYPES
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TINYINT,INT
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====
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---- QUERY
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# Right outer join where none of the build rows matches a probe row.
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select straight_join count(*)
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from (values(10000 as id)) a right outer join alltypesagg b
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on a.id < b.id
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where a.id is null
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---- RESULTS
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11000
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---- TYPES
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BIGINT
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====
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---- QUERY
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# Full outer join where the probe input is smaller than the build input and
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# it can fit in a single row batch.
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select straight_join a.id, b.id
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from (values(1 as id)) a full outer join alltypestiny b
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on a.id < b.id
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order by a.id, b.id
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---- RESULTS
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1,2
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1,3
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1,4
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1,5
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1,6
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1,7
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NULL,0
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NULL,1
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---- TYPES
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TINYINT, INT
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====
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---- QUERY
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# IMPALA-2319: the NLJ node returned more rows than limit in certain cases. This resulted
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# in extra rows being returned to the client if the NLJ was the topmost node in the plan,
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# which is the case when this query is executed on a single node. If this same query is
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# executed on multiple nodes, the exchange enforces the limit and masks the bug.
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select straight_join a, cnt from (values(1 a)) v1
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cross join
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(select id, count(*) cnt
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from alltypes
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group by id) v2 limit 5;
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---- RESULTS
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1,1
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1,1
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1,1
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1,1
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1,1
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---- TYPES
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TINYINT,BIGINT
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====
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---- QUERY
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# IMPALA-2207: Aggregation feeding into build side of nested loop join.
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# We want to test that this query doesn't crash or hit a DCHECK.
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select straight_join * from (values(1 a)) v1
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cross join
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(select id, count(*) cnt
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from alltypes
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group by id) v2;
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---- TYPES
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TINYINT,INT,BIGINT
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====
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====
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---- QUERY
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# Regression test for IMPALA-561: Multiple scan nodes in a plan fragment.
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select count(*)
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from functional.alltypes a1
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left join functional.alltypes a2 on a2.tinyint_col >= 1
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---- RESULTS
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47961000
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---- TYPES
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BIGINT
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====
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---- QUERY
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# Right non-equi-join with empty build.
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select straight_join at.id
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from alltypes at
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right join functional.alltypestiny att on at.id < att.id
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where att.int_col = 999
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---- RESULTS
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---- TYPES
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INT
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====
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---- QUERY
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# Full outer non-equi-join with empty build.
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select straight_join at.id
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from alltypes at
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full outer join (
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select * from functional.alltypestiny where int_col = 999) att on at.id < att.id
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order by at.id desc
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limit 5
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---- RESULTS
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7299
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7298
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7297
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7296
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7295
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---- TYPES
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INT
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====
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---- QUERY
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# Right semi non-equi-join with empty build.
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select straight_join at.id
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from (select * from functional.alltypestiny att where int_col = 999) att
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right semi join alltypes at on at.id < att.id
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---- RESULTS
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---- TYPES
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INT
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====
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---- QUERY
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# Right anti non-equi-join with empty build.
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select straight_join at.id
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from (select * from functional.alltypestiny att where int_col = 999) att
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right anti join alltypes at on at.id < att.id
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order by at.id desc
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limit 5
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---- RESULTS
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7299
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7298
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7297
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7296
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7295
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---- TYPES
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INT
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====
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