zabetak commented on a change in pull request #3033:
URL: https://github.com/apache/hive/pull/3033#discussion_r811856166
##########
File path: ql/src/test/results/clientpositive/llap/subquery_scalar.q.out
##########
@@ -491,25 +484,25 @@ STAGE PLANS:
aggregations: count(VALUE._col0)
mode: mergepartial
outputColumnNames: _col0
- Statistics: Num rows: 1 Data size: 196 Basic stats: COMPLETE
Column stats: NONE
- Limit
- Number of rows: 0
- Statistics: Num rows: 0 Data size: 0 Basic stats: COMPLETE
Column stats: NONE
+ Statistics: Num rows: 1 Data size: 192 Basic stats: COMPLETE
Column stats: NONE
+ Filter Operator
+ predicate: sq_count_check(_col0) (type: boolean)
+ Statistics: Num rows: 1 Data size: 192 Basic stats: COMPLETE
Column stats: NONE
Review comment:
It would be nice to understand why these changes happen.
##########
File path: ql/src/test/results/clientpositive/llap/subquery_scalar.q.out
##########
@@ -420,34 +420,27 @@ STAGE PLANS:
TableScan
alias: part_null_n0
filterExpr: p_name is null (type: boolean)
- Statistics: Num rows: 1 Data size: 188 Basic stats: COMPLETE
Column stats: NONE
+ Statistics: Num rows: 1 Data size: 184 Basic stats: COMPLETE
Column stats: NONE
Filter Operator
predicate: p_name is null (type: boolean)
- Statistics: Num rows: 1 Data size: 188 Basic stats:
COMPLETE Column stats: NONE
+ Statistics: Num rows: 1 Data size: 184 Basic stats:
COMPLETE Column stats: NONE
Select Operator
- expressions: p_partkey (type: int)
- outputColumnNames: p_partkey
- Statistics: Num rows: 1 Data size: 188 Basic stats:
COMPLETE Column stats: NONE
+ Statistics: Num rows: 1 Data size: 184 Basic stats:
COMPLETE Column stats: NONE
+ Reduce Output Operator
+ null sort order:
+ sort order:
+ Statistics: Num rows: 1 Data size: 184 Basic stats:
COMPLETE Column stats: NONE
Group By Operator
- aggregations: count(p_partkey)
+ aggregations: count()
minReductionHashAggr: 0.99
mode: hash
outputColumnNames: _col0
- Statistics: Num rows: 1 Data size: 196 Basic stats:
COMPLETE Column stats: NONE
+ Statistics: Num rows: 1 Data size: 192 Basic stats:
COMPLETE Column stats: NONE
Reduce Output Operator
null sort order:
sort order:
- Statistics: Num rows: 1 Data size: 196 Basic stats:
COMPLETE Column stats: NONE
+ Statistics: Num rows: 1 Data size: 192 Basic stats:
COMPLETE Column stats: NONE
value expressions: _col0 (type: bigint)
- Limit
- Number of rows: 0
- Statistics: Num rows: 0 Data size: 0 Basic stats:
COMPLETE Column stats: NONE
- Select Operator
- Statistics: Num rows: 0 Data size: 0 Basic stats: NONE
Column stats: NONE
- Reduce Output Operator
- null sort order:
- sort order:
- Statistics: Num rows: 0 Data size: 0 Basic stats:
NONE Column stats: NONE
Review comment:
Is it ok that this limit goes away? Do we understand why this happened?
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