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impala/testdata/workloads/functional-planner/queries/PlannerTest/aggregation.test
xqhe 462d91884f IMPALA-10096: Use the original ordinal if the group by ordinal reference is a constant int 
The SelectStmt's groupingExprs_ uses the analyzed version and the
ordinal reference will be substituted.
It will throw an exception if the ordinal reference is still a numeric
literal, because we will re-analyze after the expression has been
rewritten. For example, here "count(1)" is rewritten to "count(*)" so
we need to re-analyze the new query.
select 13, id, count(1) from dimtbl group by 1, 2;
The rewritten sql should be
select 13, id, count(*) from dimtbl group by 1, id;
If the original query uses "count(*)", it won't hit the bug since
no rewriting happens.

Testing:
 - Added new unit tests with ordinal in GROUP BY whereas SELECT has
   the INT literal.
 - Ran 'mvn test' for the FE

Change-Id: I34f659d15073d69aa0a4685f56ad94557df86560
Reviewed-on: http://gerrit.cloudera.org:8080/16353
Reviewed-by: Impala Public Jenkins <impala-public-jenkins@cloudera.com>
Tested-by: Impala Public Jenkins <impala-public-jenkins@cloudera.com>
2020-09-22 13:43:06 +00:00

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# basic aggregation
select count(*), count(tinyint_col), min(tinyint_col), max(tinyint_col), sum(tinyint_col),
avg(tinyint_col)
from functional.alltypesagg
---- PLAN
PLAN-ROOT SINK
|
01:AGGREGATE [FINALIZE]
| output: count(*), count(tinyint_col), min(tinyint_col), max(tinyint_col), sum(tinyint_col), avg(tinyint_col)
| row-size=34B cardinality=1
|
00:SCAN HDFS [functional.alltypesagg]
partitions=11/11 files=11 size=814.73KB
row-size=1B cardinality=11.00K
---- DISTRIBUTEDPLAN
PLAN-ROOT SINK
|
03:AGGREGATE [FINALIZE]
| output: count:merge(*), count:merge(tinyint_col), min:merge(tinyint_col), max:merge(tinyint_col), sum:merge(tinyint_col), avg:merge(tinyint_col)
| row-size=34B cardinality=1
|
02:EXCHANGE [UNPARTITIONED]
|
01:AGGREGATE
| output: count(*), count(tinyint_col), min(tinyint_col), max(tinyint_col), sum(tinyint_col), avg(tinyint_col)
| row-size=34B cardinality=1
|
00:SCAN HDFS [functional.alltypesagg]
partitions=11/11 files=11 size=814.73KB
row-size=1B cardinality=11.00K
====
# with grouping
select tinyint_col, bigint_col, count(*), min(tinyint_col), max(tinyint_col), sum(tinyint_col),
avg(tinyint_col)
from functional.alltypesagg
group by 2, 1
---- PLAN
PLAN-ROOT SINK
|
01:AGGREGATE [FINALIZE]
| output: count(*), min(tinyint_col), max(tinyint_col), sum(tinyint_col), avg(tinyint_col)
| group by: bigint_col, tinyint_col
| row-size=35B cardinality=9.07K
|
00:SCAN HDFS [functional.alltypesagg]
partitions=11/11 files=11 size=814.73KB
row-size=9B cardinality=11.00K
---- DISTRIBUTEDPLAN
PLAN-ROOT SINK
|
04:EXCHANGE [UNPARTITIONED]
|
03:AGGREGATE [FINALIZE]
| output: count:merge(*), min:merge(tinyint_col), max:merge(tinyint_col), sum:merge(tinyint_col), avg:merge(tinyint_col)
| group by: bigint_col, tinyint_col
| row-size=35B cardinality=9.07K
|
02:EXCHANGE [HASH(bigint_col,tinyint_col)]
|
01:AGGREGATE [STREAMING]
| output: count(*), min(tinyint_col), max(tinyint_col), sum(tinyint_col), avg(tinyint_col)
| group by: bigint_col, tinyint_col
| row-size=35B cardinality=9.07K
|
00:SCAN HDFS [functional.alltypesagg]
partitions=11/11 files=11 size=814.73KB
row-size=9B cardinality=11.00K
====
# avg substitution
select avg(id)
from functional.testtbl
having count(id) > 0
order by avg(zip) limit 10
---- PLAN
PLAN-ROOT SINK
|
02:TOP-N [LIMIT=10]
| order by: avg(zip) ASC
| row-size=16B cardinality=0
|
01:AGGREGATE [FINALIZE]
| output: avg(id), count(id), avg(zip)
| having: count(id) > 0
| row-size=24B cardinality=0
|
00:SCAN HDFS [functional.testtbl]
partitions=1/1 files=0 size=0B
row-size=12B cardinality=0
---- DISTRIBUTEDPLAN
PLAN-ROOT SINK
|
02:TOP-N [LIMIT=10]
| order by: avg(zip) ASC
| row-size=16B cardinality=0
|
04:AGGREGATE [FINALIZE]
| output: avg:merge(id), count:merge(id), avg:merge(zip)
| having: count(id) > 0
| row-size=24B cardinality=0
|
03:EXCHANGE [UNPARTITIONED]
|
01:AGGREGATE
| output: avg(id), count(id), avg(zip)
| row-size=24B cardinality=0
|
00:SCAN HDFS [functional.testtbl]
partitions=1/1 files=0 size=0B
row-size=12B cardinality=0
====
# Test correct removal of redundant group-by expressions (IMPALA-817)
select int_col + int_col, int_col * int_col
from functional.alltypesagg
group by int_col + int_col, int_col * int_col, int_col + int_col
having (int_col * int_col) < 0 limit 10
---- PLAN
PLAN-ROOT SINK
|
01:AGGREGATE [FINALIZE]
| group by: int_col + int_col, int_col * int_col
| having: int_col * int_col < 0
| limit: 10
| row-size=16B cardinality=10
|
00:SCAN HDFS [functional.alltypesagg]
partitions=11/11 files=11 size=814.73KB
row-size=4B cardinality=11.00K
---- DISTRIBUTEDPLAN
PLAN-ROOT SINK
|
04:EXCHANGE [UNPARTITIONED]
| limit: 10
|
03:AGGREGATE [FINALIZE]
| group by: int_col + int_col, int_col * int_col
| having: int_col * int_col < 0
| limit: 10
| row-size=16B cardinality=10
|
02:EXCHANGE [HASH(int_col + int_col,int_col * int_col)]
|
01:AGGREGATE [STREAMING]
| group by: int_col + int_col, int_col * int_col
| row-size=16B cardinality=11.00K
|
00:SCAN HDFS [functional.alltypesagg]
partitions=11/11 files=11 size=814.73KB
row-size=4B cardinality=11.00K
====
# Tests that a having predicate triggers slot materialization (IMPALA-846).
select count(*) from
functional.alltypes t1 inner join functional.alltypestiny t2
on t1.smallint_col = t2.smallint_col
group by t1.tinyint_col, t2.smallint_col
having count(t2.int_col) = count(t1.bigint_col)
---- PLAN
PLAN-ROOT SINK
|
03:AGGREGATE [FINALIZE]
| output: count(*), count(t2.int_col), count(t1.bigint_col)
| group by: t1.tinyint_col, t2.smallint_col
| having: count(t2.int_col) = count(t1.bigint_col)
| row-size=27B cardinality=2
|
02:HASH JOIN [INNER JOIN]
| hash predicates: t1.smallint_col = t2.smallint_col
| runtime filters: RF000 <- t2.smallint_col
| row-size=17B cardinality=5.84K
|
|--01:SCAN HDFS [functional.alltypestiny t2]
| partitions=4/4 files=4 size=460B
| row-size=6B cardinality=8
|
00:SCAN HDFS [functional.alltypes t1]
partitions=24/24 files=24 size=478.45KB
runtime filters: RF000 -> t1.smallint_col
row-size=11B cardinality=7.30K
====
# Tests proper slot materialization of agg-tuple slots for avg (IMP-1271).
# 't.x > 10' is picked up as an unassigned conjunct, and not as a binding
# predicate because avg gets rewritten into an expr against two slots
# (and getBoundPredicates() cannot handle multi-slot predicates).
select 1 from
(select int_col, avg(bigint_col) x from functional.alltypes
group by int_col) t
where t.x > 10
---- PLAN
PLAN-ROOT SINK
|
01:AGGREGATE [FINALIZE]
| output: avg(bigint_col)
| group by: int_col
| having: avg(bigint_col) > 10
| row-size=12B cardinality=1
|
00:SCAN HDFS [functional.alltypes]
partitions=24/24 files=24 size=478.45KB
row-size=12B cardinality=7.30K
====
# test distributed aggregation over unions (IMPALA-831)
# non-distinct agg without grouping over a union
select count(*) from
(select * from functional.alltypes
union all
select * from functional.alltypessmall) t
limit 10
---- PLAN
PLAN-ROOT SINK
|
03:AGGREGATE [FINALIZE]
| output: count(*)
| limit: 10
| row-size=8B cardinality=1
|
00:UNION
| pass-through-operands: all
| row-size=0B cardinality=7.40K
|
|--02:SCAN HDFS [functional.alltypessmall]
| partitions=4/4 files=4 size=6.32KB
| row-size=0B cardinality=100
|
01:SCAN HDFS [functional.alltypes]
partitions=24/24 files=24 size=478.45KB
row-size=0B cardinality=7.30K
---- DISTRIBUTEDPLAN
PLAN-ROOT SINK
|
05:AGGREGATE [FINALIZE]
| output: count:merge(*)
| limit: 10
| row-size=8B cardinality=1
|
04:EXCHANGE [UNPARTITIONED]
|
03:AGGREGATE
| output: count(*)
| row-size=8B cardinality=1
|
00:UNION
| pass-through-operands: all
| row-size=0B cardinality=7.40K
|
|--02:SCAN HDFS [functional.alltypessmall]
| partitions=4/4 files=4 size=6.32KB
| row-size=0B cardinality=100
|
01:SCAN HDFS [functional.alltypes]
partitions=24/24 files=24 size=478.45KB
row-size=0B cardinality=7.30K
====
# non-distinct agg with grouping over a union
select count(*) from
(select * from functional.alltypes
union all
select * from functional.alltypessmall) t
group by t.bigint_col
limit 10
---- PLAN
PLAN-ROOT SINK
|
03:AGGREGATE [FINALIZE]
| output: count(*)
| group by: bigint_col
| limit: 10
| row-size=16B cardinality=10
|
00:UNION
| pass-through-operands: all
| row-size=8B cardinality=7.40K
|
|--02:SCAN HDFS [functional.alltypessmall]
| partitions=4/4 files=4 size=6.32KB
| row-size=8B cardinality=100
|
01:SCAN HDFS [functional.alltypes]
partitions=24/24 files=24 size=478.45KB
row-size=8B cardinality=7.30K
---- DISTRIBUTEDPLAN
PLAN-ROOT SINK
|
06:EXCHANGE [UNPARTITIONED]
| limit: 10
|
05:AGGREGATE [FINALIZE]
| output: count:merge(*)
| group by: t.bigint_col
| limit: 10
| row-size=16B cardinality=10
|
04:EXCHANGE [HASH(t.bigint_col)]
|
03:AGGREGATE [STREAMING]
| output: count(*)
| group by: bigint_col
| row-size=16B cardinality=20
|
00:UNION
| pass-through-operands: all
| row-size=8B cardinality=7.40K
|
|--02:SCAN HDFS [functional.alltypessmall]
| partitions=4/4 files=4 size=6.32KB
| row-size=8B cardinality=100
|
01:SCAN HDFS [functional.alltypes]
partitions=24/24 files=24 size=478.45KB
row-size=8B cardinality=7.30K
====
# distinct agg without grouping over a union
select count(distinct int_col)
from
(select * from functional.alltypes
union all
select * from functional.alltypessmall) t
limit 10
---- PLAN
PLAN-ROOT SINK
|
04:AGGREGATE [FINALIZE]
| output: count(int_col)
| limit: 10
| row-size=8B cardinality=1
|
03:AGGREGATE
| group by: int_col
| row-size=4B cardinality=20
|
00:UNION
| pass-through-operands: all
| row-size=4B cardinality=7.40K
|
|--02:SCAN HDFS [functional.alltypessmall]
| partitions=4/4 files=4 size=6.32KB
| row-size=4B cardinality=100
|
01:SCAN HDFS [functional.alltypes]
partitions=24/24 files=24 size=478.45KB
row-size=4B cardinality=7.30K
---- DISTRIBUTEDPLAN
PLAN-ROOT SINK
|
08:AGGREGATE [FINALIZE]
| output: count:merge(int_col)
| limit: 10
| row-size=8B cardinality=1
|
07:EXCHANGE [UNPARTITIONED]
|
04:AGGREGATE
| output: count(int_col)
| row-size=8B cardinality=1
|
06:AGGREGATE
| group by: int_col
| row-size=4B cardinality=20
|
05:EXCHANGE [HASH(int_col)]
|
03:AGGREGATE [STREAMING]
| group by: int_col
| row-size=4B cardinality=20
|
00:UNION
| pass-through-operands: all
| row-size=4B cardinality=7.40K
|
|--02:SCAN HDFS [functional.alltypessmall]
| partitions=4/4 files=4 size=6.32KB
| row-size=4B cardinality=100
|
01:SCAN HDFS [functional.alltypes]
partitions=24/24 files=24 size=478.45KB
row-size=4B cardinality=7.30K
====
# distinct agg with grouping over a union
select count(distinct int_col)
from
(select * from functional.alltypes
union all
select * from functional.alltypessmall) t
group by t.bigint_col
limit 10
---- PLAN
PLAN-ROOT SINK
|
04:AGGREGATE [FINALIZE]
| output: count(int_col)
| group by: t.bigint_col
| limit: 10
| row-size=16B cardinality=10
|
03:AGGREGATE
| group by: bigint_col, int_col
| row-size=12B cardinality=400
|
00:UNION
| pass-through-operands: all
| row-size=12B cardinality=7.40K
|
|--02:SCAN HDFS [functional.alltypessmall]
| partitions=4/4 files=4 size=6.32KB
| row-size=12B cardinality=100
|
01:SCAN HDFS [functional.alltypes]
partitions=24/24 files=24 size=478.45KB
row-size=12B cardinality=7.30K
---- DISTRIBUTEDPLAN
PLAN-ROOT SINK
|
09:EXCHANGE [UNPARTITIONED]
| limit: 10
|
08:AGGREGATE [FINALIZE]
| output: count:merge(int_col)
| group by: t.bigint_col
| limit: 10
| row-size=16B cardinality=10
|
07:EXCHANGE [HASH(t.bigint_col)]
|
04:AGGREGATE [STREAMING]
| output: count(int_col)
| group by: t.bigint_col
| row-size=16B cardinality=10
|
06:AGGREGATE
| group by: t.bigint_col, int_col
| row-size=12B cardinality=400
|
05:EXCHANGE [HASH(t.bigint_col,int_col)]
|
03:AGGREGATE [STREAMING]
| group by: bigint_col, int_col
| row-size=12B cardinality=400
|
00:UNION
| pass-through-operands: all
| row-size=12B cardinality=7.40K
|
|--02:SCAN HDFS [functional.alltypessmall]
| partitions=4/4 files=4 size=6.32KB
| row-size=12B cardinality=100
|
01:SCAN HDFS [functional.alltypes]
partitions=24/24 files=24 size=478.45KB
row-size=12B cardinality=7.30K
====
# mixed distinct and non-distinct agg without grouping over a union
select count(smallint_col), count(distinct int_col)
from
(select * from functional.alltypes
union all
select * from functional.alltypessmall) t
limit 10
---- PLAN
PLAN-ROOT SINK
|
04:AGGREGATE [FINALIZE]
| output: count(int_col), count:merge(smallint_col)
| limit: 10
| row-size=16B cardinality=1
|
03:AGGREGATE
| output: count(smallint_col)
| group by: int_col
| row-size=12B cardinality=20
|
00:UNION
| pass-through-operands: all
| row-size=6B cardinality=7.40K
|
|--02:SCAN HDFS [functional.alltypessmall]
| partitions=4/4 files=4 size=6.32KB
| row-size=6B cardinality=100
|
01:SCAN HDFS [functional.alltypes]
partitions=24/24 files=24 size=478.45KB
row-size=6B cardinality=7.30K
---- DISTRIBUTEDPLAN
PLAN-ROOT SINK
|
08:AGGREGATE [FINALIZE]
| output: count:merge(int_col), count:merge(smallint_col)
| limit: 10
| row-size=16B cardinality=1
|
07:EXCHANGE [UNPARTITIONED]
|
04:AGGREGATE
| output: count(int_col), count:merge(smallint_col)
| row-size=16B cardinality=1
|
06:AGGREGATE
| output: count:merge(smallint_col)
| group by: int_col
| row-size=12B cardinality=20
|
05:EXCHANGE [HASH(int_col)]
|
03:AGGREGATE [STREAMING]
| output: count(smallint_col)
| group by: int_col
| row-size=12B cardinality=20
|
00:UNION
| pass-through-operands: all
| row-size=6B cardinality=7.40K
|
|--02:SCAN HDFS [functional.alltypessmall]
| partitions=4/4 files=4 size=6.32KB
| row-size=6B cardinality=100
|
01:SCAN HDFS [functional.alltypes]
partitions=24/24 files=24 size=478.45KB
row-size=6B cardinality=7.30K
====
# mixed distinct and non-distinct agg with grouping over a union
select count(smallint_col), count(distinct int_col)
from
(select * from functional.alltypes
union all
select * from functional.alltypessmall) t
group by t.bigint_col
limit 10
---- PLAN
PLAN-ROOT SINK
|
04:AGGREGATE [FINALIZE]
| output: count(int_col), count:merge(smallint_col)
| group by: t.bigint_col
| limit: 10
| row-size=24B cardinality=10
|
03:AGGREGATE
| output: count(smallint_col)
| group by: bigint_col, int_col
| row-size=20B cardinality=400
|
00:UNION
| pass-through-operands: all
| row-size=14B cardinality=7.40K
|
|--02:SCAN HDFS [functional.alltypessmall]
| partitions=4/4 files=4 size=6.32KB
| row-size=14B cardinality=100
|
01:SCAN HDFS [functional.alltypes]
partitions=24/24 files=24 size=478.45KB
row-size=14B cardinality=7.30K
---- DISTRIBUTEDPLAN
PLAN-ROOT SINK
|
09:EXCHANGE [UNPARTITIONED]
| limit: 10
|
08:AGGREGATE [FINALIZE]
| output: count:merge(int_col), count:merge(smallint_col)
| group by: t.bigint_col
| limit: 10
| row-size=24B cardinality=10
|
07:EXCHANGE [HASH(t.bigint_col)]
|
04:AGGREGATE [STREAMING]
| output: count(int_col), count:merge(smallint_col)
| group by: t.bigint_col
| row-size=24B cardinality=10
|
06:AGGREGATE
| output: count:merge(smallint_col)
| group by: t.bigint_col, int_col
| row-size=20B cardinality=400
|
05:EXCHANGE [HASH(t.bigint_col,int_col)]
|
03:AGGREGATE [STREAMING]
| output: count(smallint_col)
| group by: bigint_col, int_col
| row-size=20B cardinality=400
|
00:UNION
| pass-through-operands: all
| row-size=14B cardinality=7.40K
|
|--02:SCAN HDFS [functional.alltypessmall]
| partitions=4/4 files=4 size=6.32KB
| row-size=14B cardinality=100
|
01:SCAN HDFS [functional.alltypes]
partitions=24/24 files=24 size=478.45KB
row-size=14B cardinality=7.30K
====
# mixed distinct and non-distinct agg with grouping over a union distinct
select count(smallint_col), count(distinct int_col)
from
(select * from functional.alltypes
union distinct
select * from functional.alltypessmall) t
group by t.bigint_col
limit 10
---- PLAN
PLAN-ROOT SINK
|
05:AGGREGATE [FINALIZE]
| output: count(int_col), count:merge(smallint_col)
| group by: t.bigint_col
| limit: 10
| row-size=24B cardinality=10
|
04:AGGREGATE
| output: count(smallint_col)
| group by: bigint_col, int_col
| row-size=20B cardinality=400
|
03:AGGREGATE [FINALIZE]
| group by: id, bool_col, tinyint_col, smallint_col, int_col, bigint_col, float_col, double_col, date_string_col, string_col, timestamp_col, year, month
| row-size=89B cardinality=7.40K
|
00:UNION
| pass-through-operands: all
| row-size=89B cardinality=7.40K
|
|--02:SCAN HDFS [functional.alltypessmall]
| partitions=4/4 files=4 size=6.32KB
| row-size=89B cardinality=100
|
01:SCAN HDFS [functional.alltypes]
partitions=24/24 files=24 size=478.45KB
row-size=89B cardinality=7.30K
---- DISTRIBUTEDPLAN
PLAN-ROOT SINK
|
12:EXCHANGE [UNPARTITIONED]
| limit: 10
|
11:AGGREGATE [FINALIZE]
| output: count:merge(int_col), count:merge(smallint_col)
| group by: t.bigint_col
| limit: 10
| row-size=24B cardinality=10
|
10:EXCHANGE [HASH(t.bigint_col)]
|
05:AGGREGATE [STREAMING]
| output: count(int_col), count:merge(smallint_col)
| group by: t.bigint_col
| row-size=24B cardinality=10
|
09:AGGREGATE
| output: count:merge(smallint_col)
| group by: t.bigint_col, int_col
| row-size=20B cardinality=400
|
08:EXCHANGE [HASH(t.bigint_col,int_col)]
|
04:AGGREGATE [STREAMING]
| output: count(smallint_col)
| group by: bigint_col, int_col
| row-size=20B cardinality=400
|
07:AGGREGATE [FINALIZE]
| group by: id, bool_col, tinyint_col, smallint_col, int_col, bigint_col, float_col, double_col, date_string_col, string_col, timestamp_col, year, month
| row-size=89B cardinality=7.40K
|
06:EXCHANGE [HASH(id,bool_col,tinyint_col,smallint_col,int_col,bigint_col,float_col,double_col,date_string_col,string_col,timestamp_col,year,month)]
|
03:AGGREGATE [STREAMING]
| group by: id, bool_col, tinyint_col, smallint_col, int_col, bigint_col, float_col, double_col, date_string_col, string_col, timestamp_col, year, month
| row-size=89B cardinality=7.40K
|
00:UNION
| pass-through-operands: all
| row-size=89B cardinality=7.40K
|
|--02:SCAN HDFS [functional.alltypessmall]
| partitions=4/4 files=4 size=6.32KB
| row-size=89B cardinality=100
|
01:SCAN HDFS [functional.alltypes]
partitions=24/24 files=24 size=478.45KB
row-size=89B cardinality=7.30K
====
# Mixed distinct and non-distinct agg with intermediate type different from input type
# Regression test for IMPALA-5251 to exercise validateMergeAggFn() in FunctionCallExpr.
select avg(l_quantity), ndv(l_discount), count(distinct l_partkey)
from tpch_parquet.lineitem;
---- PLAN
PLAN-ROOT SINK
|
02:AGGREGATE [FINALIZE]
| output: count(l_partkey), avg:merge(l_quantity), ndv:merge(l_discount)
| row-size=24B cardinality=1
|
01:AGGREGATE
| output: avg(l_quantity), ndv(l_discount)
| group by: l_partkey
| row-size=24B cardinality=200.52K
|
00:SCAN HDFS [tpch_parquet.lineitem]
partitions=1/1 files=3 size=193.60MB
row-size=24B cardinality=6.00M
---- DISTRIBUTEDPLAN
PLAN-ROOT SINK
|
06:AGGREGATE [FINALIZE]
| output: count:merge(l_partkey), avg:merge(l_quantity), ndv:merge(l_discount)
| row-size=24B cardinality=1
|
05:EXCHANGE [UNPARTITIONED]
|
02:AGGREGATE
| output: count(l_partkey), avg:merge(l_quantity), ndv:merge(l_discount)
| row-size=24B cardinality=1
|
04:AGGREGATE
| output: avg:merge(l_quantity), ndv:merge(l_discount)
| group by: l_partkey
| row-size=24B cardinality=200.52K
|
03:EXCHANGE [HASH(l_partkey)]
|
01:AGGREGATE [STREAMING]
| output: avg(l_quantity), ndv(l_discount)
| group by: l_partkey
| row-size=24B cardinality=200.52K
|
00:SCAN HDFS [tpch_parquet.lineitem]
partitions=1/1 files=3 size=193.60MB
row-size=24B cardinality=6.00M
====
# test that aggregations are not placed below an unpartitioned exchange with a limit
select count(*) from (select * from functional.alltypes limit 10) t
---- PLAN
PLAN-ROOT SINK
|
01:AGGREGATE [FINALIZE]
| output: count(*)
| row-size=8B cardinality=1
|
00:SCAN HDFS [functional.alltypes]
partitions=24/24 files=24 size=478.45KB
limit: 10
row-size=0B cardinality=10
---- DISTRIBUTEDPLAN
PLAN-ROOT SINK
|
01:AGGREGATE [FINALIZE]
| output: count(*)
| row-size=8B cardinality=1
|
02:EXCHANGE [UNPARTITIONED]
| limit: 10
|
00:SCAN HDFS [functional.alltypes]
partitions=24/24 files=24 size=478.45KB
limit: 10
row-size=0B cardinality=10
====
# test that aggregations are not placed below an unpartitioned exchange with a limit
select count(*) from
(select * from functional.alltypes
union all
(select * from functional.alltypessmall) limit 10) t
---- PLAN
PLAN-ROOT SINK
|
03:AGGREGATE [FINALIZE]
| output: count(*)
| row-size=8B cardinality=1
|
00:UNION
| pass-through-operands: all
| limit: 10
| row-size=0B cardinality=10
|
|--02:SCAN HDFS [functional.alltypessmall]
| partitions=4/4 files=4 size=6.32KB
| row-size=0B cardinality=100
|
01:SCAN HDFS [functional.alltypes]
partitions=24/24 files=24 size=478.45KB
row-size=0B cardinality=7.30K
---- DISTRIBUTEDPLAN
PLAN-ROOT SINK
|
03:AGGREGATE [FINALIZE]
| output: count(*)
| row-size=8B cardinality=1
|
04:EXCHANGE [UNPARTITIONED]
| limit: 10
|
00:UNION
| pass-through-operands: all
| limit: 10
| row-size=0B cardinality=10
|
|--02:SCAN HDFS [functional.alltypessmall]
| partitions=4/4 files=4 size=6.32KB
| row-size=0B cardinality=100
|
01:SCAN HDFS [functional.alltypes]
partitions=24/24 files=24 size=478.45KB
row-size=0B cardinality=7.30K
====
# test that limits are applied at the top-level merge aggregation node for non-grouping
# distinct aggregation (IMPALA-1802)
select * from (
select count(distinct cnt) from
(select count(distinct t1.id) as cnt
from functional.alltypesagg t1 join functional.alltypestiny t2 on t1.id = t2.id
limit 10) t
limit 2) v
limit 1
---- PLAN
PLAN-ROOT SINK
|
06:AGGREGATE [FINALIZE]
| output: count(cnt)
| limit: 1
| row-size=8B cardinality=1
|
05:AGGREGATE
| group by: count(t1.id)
| row-size=8B cardinality=1
|
04:AGGREGATE [FINALIZE]
| output: count(t1.id)
| limit: 10
| row-size=8B cardinality=1
|
03:AGGREGATE
| group by: t1.id
| row-size=4B cardinality=9
|
02:HASH JOIN [INNER JOIN]
| hash predicates: t1.id = t2.id
| runtime filters: RF000 <- t2.id
| row-size=8B cardinality=9
|
|--01:SCAN HDFS [functional.alltypestiny t2]
| partitions=4/4 files=4 size=460B
| row-size=4B cardinality=8
|
00:SCAN HDFS [functional.alltypesagg t1]
partitions=11/11 files=11 size=814.73KB
runtime filters: RF000 -> t1.id
row-size=4B cardinality=11.00K
---- DISTRIBUTEDPLAN
PLAN-ROOT SINK
|
06:AGGREGATE [FINALIZE]
| output: count(cnt)
| limit: 1
| row-size=8B cardinality=1
|
05:AGGREGATE
| group by: count(t1.id)
| row-size=8B cardinality=1
|
11:AGGREGATE [FINALIZE]
| output: count:merge(t1.id)
| limit: 10
| row-size=8B cardinality=1
|
10:EXCHANGE [UNPARTITIONED]
|
04:AGGREGATE
| output: count(t1.id)
| row-size=8B cardinality=1
|
09:AGGREGATE
| group by: t1.id
| row-size=4B cardinality=9
|
08:EXCHANGE [HASH(t1.id)]
|
03:AGGREGATE [STREAMING]
| group by: t1.id
| row-size=4B cardinality=9
|
02:HASH JOIN [INNER JOIN, BROADCAST]
| hash predicates: t1.id = t2.id
| runtime filters: RF000 <- t2.id
| row-size=8B cardinality=9
|
|--07:EXCHANGE [BROADCAST]
| |
| 01:SCAN HDFS [functional.alltypestiny t2]
| partitions=4/4 files=4 size=460B
| row-size=4B cardinality=8
|
00:SCAN HDFS [functional.alltypesagg t1]
partitions=11/11 files=11 size=814.73KB
runtime filters: RF000 -> t1.id
row-size=4B cardinality=11.00K
====
# IMPALA-2089: Tests correct elimination of redundant predicates.
# The equivalences between inline-view slots are enforced inside the inline-view plan.
# Equivalences between simple grouping slots (with SlotRef grouping exprs) are enforced
# at the scan, and equivalences between grouping slots with complex grouping exprs are
# enforced at the aggregation.
# a, b, c, d are in the same equivalence class and some predicates are redundant.
select * from
(select tinyint_col a, smallint_col b, int_col + int_col c, coalesce(bigint_col, year) d
from functional.alltypes
group by 1, 2, 3, 4) v
where v.a = v.b and v.b = v.c and v.c = v.d and v.a = v.c and v.a = v.d
---- PLAN
PLAN-ROOT SINK
|
01:AGGREGATE [FINALIZE]
| group by: tinyint_col, smallint_col, int_col + int_col, coalesce(bigint_col, `year`)
| having: int_col + int_col = coalesce(bigint_col, `year`), smallint_col = int_col + int_col
| row-size=19B cardinality=730
|
00:SCAN HDFS [functional.alltypes]
partitions=24/24 files=24 size=478.45KB
predicates: functional.alltypes.tinyint_col = functional.alltypes.smallint_col
row-size=19B cardinality=730
====
# IMPALA-1917: Test NULL literals inside inline view with grouping aggregation.
select cnt from
(select bool_col, count(*) cnt, cast(NULL as int) as x, cast(NULL as int) as y
from functional.alltypestiny
group by bool_col, x) v
---- PLAN
PLAN-ROOT SINK
|
01:AGGREGATE [FINALIZE]
| output: count(*)
| group by: bool_col, CAST(NULL AS INT)
| row-size=13B cardinality=2
|
00:SCAN HDFS [functional.alltypestiny]
partitions=4/4 files=4 size=460B
row-size=1B cardinality=8
====
# IMPALA-1917: Test NULL literals inside inline view with grouping aggregation.
select cnt from
(select bool_col, count(distinct int_col) cnt, NULL as x, NULL as y
from functional.alltypestiny
group by bool_col, x) v
---- PLAN
PLAN-ROOT SINK
|
02:AGGREGATE [FINALIZE]
| output: count(int_col)
| group by: bool_col, NULL
| row-size=10B cardinality=2
|
01:AGGREGATE
| group by: bool_col, NULL, int_col
| row-size=6B cardinality=4
|
00:SCAN HDFS [functional.alltypestiny]
partitions=4/4 files=4 size=460B
row-size=5B cardinality=8
====
# test simple group_concat with distinct
select group_concat(distinct string_col) from functional.alltypesagg
---- PLAN
PLAN-ROOT SINK
|
02:AGGREGATE [FINALIZE]
| output: group_concat(string_col)
| row-size=12B cardinality=1
|
01:AGGREGATE
| group by: string_col
| row-size=15B cardinality=963
|
00:SCAN HDFS [functional.alltypesagg]
partitions=11/11 files=11 size=814.73KB
row-size=15B cardinality=11.00K
---- DISTRIBUTEDPLAN
PLAN-ROOT SINK
|
06:AGGREGATE [FINALIZE]
| output: group_concat:merge(string_col)
| row-size=12B cardinality=1
|
05:EXCHANGE [UNPARTITIONED]
|
02:AGGREGATE
| output: group_concat(string_col)
| row-size=12B cardinality=1
|
04:AGGREGATE
| group by: string_col
| row-size=15B cardinality=963
|
03:EXCHANGE [HASH(string_col)]
|
01:AGGREGATE [STREAMING]
| group by: string_col
| row-size=15B cardinality=963
|
00:SCAN HDFS [functional.alltypesagg]
partitions=11/11 files=11 size=814.73KB
row-size=15B cardinality=11.00K
====
# test group_concat and a group by
select day, group_concat(distinct string_col)
from (select * from functional.alltypesagg where id % 100 = day order by id limit 99999) a
group by day
---- PLAN
PLAN-ROOT SINK
|
03:AGGREGATE [FINALIZE]
| output: group_concat(string_col)
| group by: `day`
| row-size=16B cardinality=11
|
02:AGGREGATE
| group by: day, string_col
| row-size=19B cardinality=1.10K
|
01:TOP-N [LIMIT=99999]
| order by: id ASC
| row-size=23B cardinality=1.10K
|
00:SCAN HDFS [functional.alltypesagg]
partitions=11/11 files=11 size=814.73KB
predicates: `day` = id % 100
row-size=23B cardinality=1.10K
---- DISTRIBUTEDPLAN
PLAN-ROOT SINK
|
03:AGGREGATE [FINALIZE]
| output: group_concat(string_col)
| group by: `day`
| row-size=16B cardinality=11
|
02:AGGREGATE
| group by: day, string_col
| row-size=19B cardinality=1.10K
|
04:MERGING-EXCHANGE [UNPARTITIONED]
| order by: id ASC
| limit: 99999
|
01:TOP-N [LIMIT=99999]
| order by: id ASC
| row-size=23B cardinality=1.10K
|
00:SCAN HDFS [functional.alltypesagg]
partitions=11/11 files=11 size=814.73KB
predicates: `day` = id % 100
row-size=23B cardinality=1.10K
====
# test group_concat with distinct together with another distinct aggregate function
select count(distinct cast(timestamp_col as string)),
group_concat(distinct cast(timestamp_col as string))
from functional.alltypesagg group by year
---- PLAN
PLAN-ROOT SINK
|
02:AGGREGATE [FINALIZE]
| output: count(CAST(timestamp_col AS STRING)), group_concat(CAST(timestamp_col AS STRING))
| group by: `year`
| row-size=24B cardinality=1
|
01:AGGREGATE
| group by: `year`, CAST(timestamp_col AS STRING)
| row-size=20B cardinality=10.21K
|
00:SCAN HDFS [functional.alltypesagg]
partitions=11/11 files=11 size=814.73KB
row-size=20B cardinality=11.00K
---- DISTRIBUTEDPLAN
PLAN-ROOT SINK
|
07:EXCHANGE [UNPARTITIONED]
|
06:AGGREGATE [FINALIZE]
| output: count:merge(CAST(timestamp_col AS STRING)), group_concat:merge(CAST(timestamp_col AS STRING))
| group by: `year`
| row-size=24B cardinality=1
|
05:EXCHANGE [HASH(`year`)]
|
02:AGGREGATE [STREAMING]
| output: count(CAST(timestamp_col AS STRING)), group_concat(CAST(timestamp_col AS STRING))
| group by: `year`
| row-size=24B cardinality=1
|
04:AGGREGATE
| group by: `year`, CAST(timestamp_col AS STRING)
| row-size=20B cardinality=10.21K
|
03:EXCHANGE [HASH(`year`,CAST(timestamp_col AS STRING))]
|
01:AGGREGATE [STREAMING]
| group by: `year`, CAST(timestamp_col AS STRING)
| row-size=20B cardinality=10.21K
|
00:SCAN HDFS [functional.alltypesagg]
partitions=11/11 files=11 size=814.73KB
row-size=20B cardinality=11.00K
====
# test group_concat distinct with other non-distinct aggregate functions
select group_concat(distinct string_col), count(*) from functional.alltypesagg
---- PLAN
PLAN-ROOT SINK
|
02:AGGREGATE [FINALIZE]
| output: group_concat(string_col), count:merge(*)
| row-size=20B cardinality=1
|
01:AGGREGATE
| output: count(*)
| group by: string_col
| row-size=23B cardinality=963
|
00:SCAN HDFS [functional.alltypesagg]
partitions=11/11 files=11 size=814.73KB
row-size=15B cardinality=11.00K
---- DISTRIBUTEDPLAN
PLAN-ROOT SINK
|
06:AGGREGATE [FINALIZE]
| output: group_concat:merge(string_col), count:merge(*)
| row-size=20B cardinality=1
|
05:EXCHANGE [UNPARTITIONED]
|
02:AGGREGATE
| output: group_concat(string_col), count:merge(*)
| row-size=20B cardinality=1
|
04:AGGREGATE
| output: count:merge(*)
| group by: string_col
| row-size=23B cardinality=963
|
03:EXCHANGE [HASH(string_col)]
|
01:AGGREGATE [STREAMING]
| output: count(*)
| group by: string_col
| row-size=23B cardinality=963
|
00:SCAN HDFS [functional.alltypesagg]
partitions=11/11 files=11 size=814.73KB
row-size=15B cardinality=11.00K
====
# test group_concat distinct with other aggregate functions, with custom separator
select group_concat(distinct string_col, '-'), sum(int_col), count(distinct string_col)
from functional.alltypesagg
---- PLAN
PLAN-ROOT SINK
|
02:AGGREGATE [FINALIZE]
| output: group_concat(string_col, '-'), count(string_col), sum:merge(int_col)
| row-size=28B cardinality=1
|
01:AGGREGATE
| output: sum(int_col)
| group by: string_col
| row-size=23B cardinality=963
|
00:SCAN HDFS [functional.alltypesagg]
partitions=11/11 files=11 size=814.73KB
row-size=19B cardinality=11.00K
---- DISTRIBUTEDPLAN
PLAN-ROOT SINK
|
06:AGGREGATE [FINALIZE]
| output: group_concat:merge(string_col, '-'), count:merge(string_col), sum:merge(int_col)
| row-size=28B cardinality=1
|
05:EXCHANGE [UNPARTITIONED]
|
02:AGGREGATE
| output: group_concat(string_col, '-'), count(string_col), sum:merge(int_col)
| row-size=28B cardinality=1
|
04:AGGREGATE
| output: sum:merge(int_col)
| group by: string_col
| row-size=23B cardinality=963
|
03:EXCHANGE [HASH(string_col)]
|
01:AGGREGATE [STREAMING]
| output: sum(int_col)
| group by: string_col
| row-size=23B cardinality=963
|
00:SCAN HDFS [functional.alltypesagg]
partitions=11/11 files=11 size=814.73KB
row-size=19B cardinality=11.00K
====
# test group_concat distinct with other aggregate functions, with custom separator
# and a group by
select month, year, count(*), count(distinct date_string_col),
group_concat(distinct date_string_col, '-') from functional.alltypesagg
group by month, year
---- PLAN
PLAN-ROOT SINK
|
02:AGGREGATE [FINALIZE]
| output: count(date_string_col), group_concat(date_string_col, '-'), count:merge(*)
| group by: `month`, `year`
| row-size=36B cardinality=1
|
01:AGGREGATE
| output: count(*)
| group by: `month`, `year`, date_string_col
| row-size=36B cardinality=10
|
00:SCAN HDFS [functional.alltypesagg]
partitions=11/11 files=11 size=814.73KB
row-size=28B cardinality=11.00K
---- DISTRIBUTEDPLAN
PLAN-ROOT SINK
|
07:EXCHANGE [UNPARTITIONED]
|
06:AGGREGATE [FINALIZE]
| output: count:merge(date_string_col), group_concat:merge(date_string_col, '-'), count:merge(*)
| group by: `month`, `year`
| row-size=36B cardinality=1
|
05:EXCHANGE [HASH(`month`,`year`)]
|
02:AGGREGATE [STREAMING]
| output: count(date_string_col), group_concat(date_string_col, '-'), count:merge(*)
| group by: `month`, `year`
| row-size=36B cardinality=1
|
04:AGGREGATE
| output: count:merge(*)
| group by: `month`, `year`, date_string_col
| row-size=36B cardinality=10
|
03:EXCHANGE [HASH(`month`,`year`,date_string_col)]
|
01:AGGREGATE [STREAMING]
| output: count(*)
| group by: `month`, `year`, date_string_col
| row-size=36B cardinality=10
|
00:SCAN HDFS [functional.alltypesagg]
partitions=11/11 files=11 size=814.73KB
row-size=28B cardinality=11.00K
====
# test multiple group_concat distinct, each with a different separator
select group_concat(distinct string_col), group_concat(distinct string_col, '-'),
group_concat(distinct string_col, '---') from functional.alltypesagg
---- PLAN
PLAN-ROOT SINK
|
02:AGGREGATE [FINALIZE]
| output: group_concat(string_col), group_concat(string_col, '-'), group_concat(string_col, '---')
| row-size=36B cardinality=1
|
01:AGGREGATE
| group by: string_col
| row-size=15B cardinality=963
|
00:SCAN HDFS [functional.alltypesagg]
partitions=11/11 files=11 size=814.73KB
row-size=15B cardinality=11.00K
---- DISTRIBUTEDPLAN
PLAN-ROOT SINK
|
06:AGGREGATE [FINALIZE]
| output: group_concat:merge(string_col), group_concat:merge(string_col, '-'), group_concat:merge(string_col, '---')
| row-size=36B cardinality=1
|
05:EXCHANGE [UNPARTITIONED]
|
02:AGGREGATE
| output: group_concat(string_col), group_concat(string_col, '-'), group_concat(string_col, '---')
| row-size=36B cardinality=1
|
04:AGGREGATE
| group by: string_col
| row-size=15B cardinality=963
|
03:EXCHANGE [HASH(string_col)]
|
01:AGGREGATE [STREAMING]
| group by: string_col
| row-size=15B cardinality=963
|
00:SCAN HDFS [functional.alltypesagg]
partitions=11/11 files=11 size=814.73KB
row-size=15B cardinality=11.00K
====
# IMPALA-852: Aggregation only in the HAVING clause.
select 1 from functional.alltypestiny having count(*) > 0
---- PLAN
PLAN-ROOT SINK
|
01:AGGREGATE [FINALIZE]
| output: count(*)
| having: count(*) > 0
| row-size=8B cardinality=0
|
00:SCAN HDFS [functional.alltypestiny]
partitions=4/4 files=4 size=460B
row-size=0B cardinality=8
====
# Grouping aggregation where input is partitioned on grouping expr.
# Planner should not redundantly repartition the data that was already partitioned on
# the required key by the join.
select straight_join c_custkey, count(*)
from tpch_parquet.customer inner join [shuffle] tpch_parquet.orders on c_custkey = o_custkey
where c_nationkey = 16
group by 1
having count(*) < 150000
limit 1000000
---- DISTRIBUTEDPLAN
PLAN-ROOT SINK
|
06:EXCHANGE [UNPARTITIONED]
| limit: 1000000
|
03:AGGREGATE [FINALIZE]
| output: count(*)
| group by: c_custkey
| having: count(*) < 150000
| limit: 1000000
| row-size=16B cardinality=15.00K
|
02:HASH JOIN [INNER JOIN, PARTITIONED]
| hash predicates: c_custkey = o_custkey
| runtime filters: RF000 <- o_custkey
| row-size=18B cardinality=91.47K
|
|--05:EXCHANGE [HASH(o_custkey)]
| |
| 01:SCAN HDFS [tpch_parquet.orders]
| partitions=1/1 files=2 size=54.07MB
| row-size=8B cardinality=1.50M
|
04:EXCHANGE [HASH(c_custkey)]
|
00:SCAN HDFS [tpch_parquet.customer]
partitions=1/1 files=1 size=12.31MB
predicates: c_nationkey = 16
runtime filters: RF000 -> c_custkey
row-size=10B cardinality=6.00K
====
# Distinct aggregation where input is partitioned on distinct expr.
# Planner should not redundantly repartition the data that was already partitioned on
# the required key by the join.
select col from (
select straight_join count(distinct c_custkey) col
from tpch_parquet.orders inner join [shuffle] tpch_parquet.customer on c_custkey = o_custkey) v
where col > 50
limit 50
---- DISTRIBUTEDPLAN
PLAN-ROOT SINK
|
08:AGGREGATE [FINALIZE]
| output: count:merge(c_custkey)
| having: count(c_custkey) > 50
| limit: 50
| row-size=8B cardinality=0
|
07:EXCHANGE [UNPARTITIONED]
|
04:AGGREGATE
| output: count(c_custkey)
| row-size=8B cardinality=0
|
03:AGGREGATE
| group by: c_custkey
| row-size=8B cardinality=150.00K
|
02:HASH JOIN [INNER JOIN, PARTITIONED]
| hash predicates: o_custkey = c_custkey
| runtime filters: RF000 <- c_custkey
| row-size=16B cardinality=1.50M
|
|--06:EXCHANGE [HASH(c_custkey)]
| |
| 01:SCAN HDFS [tpch_parquet.customer]
| partitions=1/1 files=1 size=12.31MB
| row-size=8B cardinality=150.00K
|
05:EXCHANGE [HASH(o_custkey)]
|
00:SCAN HDFS [tpch_parquet.orders]
partitions=1/1 files=2 size=54.07MB
runtime filters: RF000 -> o_custkey
row-size=8B cardinality=1.50M
====
# Distinct grouping aggregation where input is partitioned on distinct and grouping exprs.
# Planner should not redundantly repartition the data that was already partitioned on
# the required key by the join.
select straight_join c_custkey, count(distinct c_custkey)
from tpch_parquet.orders inner join [shuffle] tpch_parquet.customer on c_custkey = o_custkey
group by 1
---- DISTRIBUTEDPLAN
PLAN-ROOT SINK
|
09:EXCHANGE [UNPARTITIONED]
|
08:AGGREGATE [FINALIZE]
| output: count:merge(c_custkey)
| group by: c_custkey
| row-size=16B cardinality=150.00K
|
07:EXCHANGE [HASH(c_custkey)]
|
04:AGGREGATE [STREAMING]
| output: count(c_custkey)
| group by: c_custkey
| row-size=16B cardinality=150.00K
|
03:AGGREGATE
| group by: c_custkey, c_custkey
| row-size=16B cardinality=1.50M
|
02:HASH JOIN [INNER JOIN, PARTITIONED]
| hash predicates: o_custkey = c_custkey
| runtime filters: RF000 <- c_custkey
| row-size=16B cardinality=1.50M
|
|--06:EXCHANGE [HASH(c_custkey)]
| |
| 01:SCAN HDFS [tpch_parquet.customer]
| partitions=1/1 files=1 size=12.31MB
| row-size=8B cardinality=150.00K
|
05:EXCHANGE [HASH(o_custkey)]
|
00:SCAN HDFS [tpch_parquet.orders]
partitions=1/1 files=2 size=54.07MB
runtime filters: RF000 -> o_custkey
row-size=8B cardinality=1.50M
====
# Complex aggregation when two joins and an agg end up in same fragment.
select l_orderkey, l_returnflag, count(*) from (
select straight_join *
from tpch_parquet.lineitem
inner join [shuffle] tpch_parquet.orders
on l_orderkey = o_orderkey and l_returnflag = o_clerk
inner join [broadcast] tpch_parquet.customer
on o_custkey = c_custkey and c_phone = o_comment
) v
group by 1, 2
having count(*) > 10
limit 10
---- DISTRIBUTEDPLAN
PLAN-ROOT SINK
|
09:EXCHANGE [UNPARTITIONED]
| limit: 10
|
05:AGGREGATE [FINALIZE]
| output: count(*)
| group by: tpch_parquet.lineitem.l_orderkey, tpch_parquet.lineitem.l_returnflag
| having: count(*) > 10
| limit: 10
| row-size=29B cardinality=10
|
04:HASH JOIN [INNER JOIN, BROADCAST]
| hash predicates: o_custkey = c_custkey, o_comment = c_phone
| runtime filters: RF000 <- c_custkey, RF001 <- c_phone
| row-size=160B cardinality=607.19K
|
|--08:EXCHANGE [BROADCAST]
| |
| 02:SCAN HDFS [tpch_parquet.customer]
| partitions=1/1 files=1 size=12.31MB
| row-size=35B cardinality=150.00K
|
03:HASH JOIN [INNER JOIN, PARTITIONED]
| hash predicates: l_orderkey = o_orderkey, l_returnflag = o_clerk
| runtime filters: RF004 <- o_orderkey, RF005 <- o_clerk
| row-size=125B cardinality=5.76M
|
|--07:EXCHANGE [HASH(o_orderkey,o_clerk)]
| |
| 01:SCAN HDFS [tpch_parquet.orders]
| partitions=1/1 files=2 size=54.07MB
| runtime filters: RF000 -> o_custkey, RF001 -> o_comment
| row-size=104B cardinality=1.50M
|
06:EXCHANGE [HASH(l_orderkey,l_returnflag)]
|
00:SCAN HDFS [tpch_parquet.lineitem]
partitions=1/1 files=3 size=193.60MB
runtime filters: RF004 -> l_orderkey, RF005 -> l_returnflag
row-size=21B cardinality=6.00M
====
# IMPALA-4263: Grouping agg needs a merge step because the grouping exprs reference a
# tuple that is made nullable in the join fragment.
select /* +straight_join */ t2.id, count(*)
from functional.alltypes t1
left outer join /* +shuffle */ functional.alltypessmall t2
on t1.id = t2.id
group by t2.id
---- DISTRIBUTEDPLAN
PLAN-ROOT SINK
|
08:EXCHANGE [UNPARTITIONED]
|
07:AGGREGATE [FINALIZE]
| output: count:merge(*)
| group by: t2.id
| row-size=12B cardinality=99
|
06:EXCHANGE [HASH(t2.id)]
|
03:AGGREGATE [STREAMING]
| output: count(*)
| group by: t2.id
| row-size=12B cardinality=99
|
02:HASH JOIN [LEFT OUTER JOIN, PARTITIONED]
| hash predicates: t1.id = t2.id
| row-size=8B cardinality=7.30K
|
|--05:EXCHANGE [HASH(t2.id)]
| |
| 01:SCAN HDFS [functional.alltypessmall t2]
| partitions=4/4 files=4 size=6.32KB
| row-size=4B cardinality=100
|
04:EXCHANGE [HASH(t1.id)]
|
00:SCAN HDFS [functional.alltypes t1]
partitions=24/24 files=24 size=478.45KB
row-size=4B cardinality=7.30K
====
# IMPALA-4263: Grouping agg is placed in the join fragment and has no merge step.
select /* +straight_join */ t1.id, count(*)
from functional.alltypes t1
left outer join /* +shuffle */ functional.alltypessmall t2
on t1.id = t2.id
group by t1.id
---- DISTRIBUTEDPLAN
PLAN-ROOT SINK
|
06:EXCHANGE [UNPARTITIONED]
|
03:AGGREGATE [FINALIZE]
| output: count(*)
| group by: t1.id
| row-size=12B cardinality=7.30K
|
02:HASH JOIN [LEFT OUTER JOIN, PARTITIONED]
| hash predicates: t1.id = t2.id
| row-size=8B cardinality=7.30K
|
|--05:EXCHANGE [HASH(t2.id)]
| |
| 01:SCAN HDFS [functional.alltypessmall t2]
| partitions=4/4 files=4 size=6.32KB
| row-size=4B cardinality=100
|
04:EXCHANGE [HASH(t1.id)]
|
00:SCAN HDFS [functional.alltypes t1]
partitions=24/24 files=24 size=478.45KB
row-size=4B cardinality=7.30K
====
# IMPALA-4263: Grouping agg is placed in the second join fragment and has no merge step.
# The grouping exprs reference a nullable tuple (t2), but that tuple is made nullable in
# the first join fragment, so it's correct to place the the aggregation in the second
# join fragment without a merge step.
select /* +straight_join */ t2.id, count(*)
from functional.alltypes t1
left outer join /* +shuffle */ functional.alltypessmall t2
on t1.int_col = t2.int_col
left outer join /* +shuffle */ functional.alltypestiny t3
on t2.id = t3.id
group by t2.id
---- DISTRIBUTEDPLAN
PLAN-ROOT SINK
|
10:EXCHANGE [UNPARTITIONED]
|
05:AGGREGATE [FINALIZE]
| output: count(*)
| group by: t2.id
| row-size=12B cardinality=99
|
04:HASH JOIN [LEFT OUTER JOIN, PARTITIONED]
| hash predicates: t2.id = t3.id
| row-size=16B cardinality=73.00K
|
|--09:EXCHANGE [HASH(t3.id)]
| |
| 02:SCAN HDFS [functional.alltypestiny t3]
| partitions=4/4 files=4 size=460B
| row-size=4B cardinality=8
|
08:EXCHANGE [HASH(t2.id)]
|
03:HASH JOIN [LEFT OUTER JOIN, PARTITIONED]
| hash predicates: t1.int_col = t2.int_col
| row-size=12B cardinality=73.00K
|
|--07:EXCHANGE [HASH(t2.int_col)]
| |
| 01:SCAN HDFS [functional.alltypessmall t2]
| partitions=4/4 files=4 size=6.32KB
| row-size=8B cardinality=100
|
06:EXCHANGE [HASH(t1.int_col)]
|
00:SCAN HDFS [functional.alltypes t1]
partitions=24/24 files=24 size=478.45KB
row-size=4B cardinality=7.30K
====
# IMPALA-10096: use the original ordinal if the group by ordinal reference is a
# constant int
select 13, id, count(1) from functional.dimtbl group by 1, 2
---- PLAN
PLAN-ROOT SINK
|
01:AGGREGATE [FINALIZE]
| output: count(*)
| group by: 13, id
| row-size=17B cardinality=10
|
00:SCAN HDFS [functional.dimtbl]
HDFS partitions=1/1 files=1 size=171B
row-size=8B cardinality=10
====
# IMPALA-10096: use the original ordinal if the group by ordinal reference is a
# constant int
select -1, id, count(1) from functional.dimtbl group by 1, 2
---- PLAN
PLAN-ROOT SINK
|
01:AGGREGATE [FINALIZE]
| output: count(*)
| group by: -1, id
| row-size=17B cardinality=10
|
00:SCAN HDFS [functional.dimtbl]
HDFS partitions=1/1 files=1 size=171B
row-size=8B cardinality=10
====
# IMPALA-10096: use the original ordinal if the group by ordinal reference is a
# constant int
select 2, id, count(1) from functional.dimtbl group by 1, 2
---- PLAN
PLAN-ROOT SINK
|
01:AGGREGATE [FINALIZE]
| output: count(*)
| group by: 2, id
| row-size=17B cardinality=10
|
00:SCAN HDFS [functional.dimtbl]
HDFS partitions=1/1 files=1 size=171B
row-size=8B cardinality=10
====
# IMPALA-10096: use the original ordinal if the group by ordinal reference is a
# constant int
select 2 + 1, id, count(1) from functional.dimtbl group by 1, 2
---- PLAN
PLAN-ROOT SINK
|
01:AGGREGATE [FINALIZE]
| output: count(*)
| group by: 2 + 1, id
| row-size=18B cardinality=10
|
00:SCAN HDFS [functional.dimtbl]
HDFS partitions=1/1 files=1 size=171B
row-size=8B cardinality=10
====
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