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https://issues.apache.org/jira/browse/HIVE-24389?focusedWorklogId=515807&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-515807
]
ASF GitHub Bot logged work on HIVE-24389:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 23/Nov/20 22:53
Start Date: 23/Nov/20 22:53
Worklog Time Spent: 10m
Work Description: jcamachor commented on a change in pull request #1676:
URL: https://github.com/apache/hive/pull/1676#discussion_r529046059
##########
File path:
ql/src/test/results/clientpositive/llap/materialized_view_rewrite_window.q.out
##########
@@ -293,24 +293,24 @@ STAGE PLANS:
Statistics: Num rows: 4 Data size: 480 Basic stats: COMPLETE
Column stats: COMPLETE
Group By Operator
aggregations: max(_col1)
- keys: _col2 (type: decimal(12,1))
+ keys: _col2 (type: decimal(19,4))
Review comment:
Difference in precision and scale for column. Why has this changed (same
below)?
##########
File path: ql/src/test/results/clientpositive/llap/metadata_only_queries.q.out
##########
@@ -377,7 +377,7 @@ STAGE PLANS:
outputColumnNames: _col0, _col1, _col2, _col3, _col4, _col5,
_col6, _col7, _col8
Statistics: Num rows: 1 Data size: 520 Basic stats: COMPLETE
Column stats: NONE
Select Operator
- expressions: _col0 (type: bigint), '1' (type: string), _col1
(type: bigint), _col2 (type: decimal(11,1)), 2 (type: int), _col0 (type:
bigint), _col3 (type: bigint), 7 (type: decimal(2,0)), _col4 (type: bigint),
_col5 (type: bigint), _col6 (type: bigint), _col7 (type: int), _col8 (type:
bigint)
+ expressions: _col0 (type: bigint), '1' (type: string), _col1
(type: bigint), _col2 (type: decimal(11,1)), 2 (type: int), _col0 (type:
bigint), _col3 (type: bigint), 7 (type: decimal(11,0)), _col4 (type: bigint),
_col5 (type: bigint), _col6 (type: bigint), _col7 (type: int), _col8 (type:
bigint)
Review comment:
Difference in precision and scale for column. Why has this changed?
##########
File path:
ql/src/test/results/clientpositive/llap/materialized_view_rewrite_window.q.out
##########
@@ -166,7 +166,7 @@ POSTHOOK: Input: arc_view@wealth
#### A masked pattern was here ####
CBO PLAN:
HiveSortLimit(sort0=[$0], dir0=[ASC])
- HiveProject(quartile=[$0], total=[$1])
+ HiveProject(quartile=[CAST($0):DECIMAL(12, 1)], total=[$1])
Review comment:
Difference in precision and scale for column. Why has this changed?
##########
File path: ql/src/test/results/clientpositive/llap/vector_cast_constant.q.out
##########
@@ -180,7 +180,7 @@ STAGE PLANS:
native: true
nativeConditionsMet:
hive.vectorized.execution.reducesink.new.enabled IS true, hive.execution.engine
tez IN [tez, spark] IS true, No PTF TopN IS true, No DISTINCT columns IS true,
BinarySortableSerDe for keys IS true, LazyBinarySerDe for values IS true
Statistics: Num rows: 257 Data size: 40092 Basic
stats: COMPLETE Column stats: COMPLETE
- value expressions: _col1 (type: bigint), _col2
(type: bigint), _col3 (type: double), _col4 (type: bigint), _col5 (type:
decimal(12,0)), _col6 (type: bigint)
+ value expressions: _col1 (type: bigint), _col2
(type: bigint), _col3 (type: double), _col4 (type: bigint), _col5 (type:
decimal(20,0)), _col6 (type: bigint)
Review comment:
Difference in precision and scale for column. Why has this changed?
##########
File path:
serde/src/java/org/apache/hadoop/hive/serde2/objectinspector/primitive/WritableConstantIntObjectInspector.java
##########
@@ -46,12 +46,4 @@ public IntWritable getWritableConstantValue() {
return value;
}
- @Override
- public int precision() {
Review comment:
I think this could lead to a change of behavior, e.g., all integers will
have same precision by default, but constant integer would have the precision
of the constant value?
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Issue Time Tracking
-------------------
Worklog Id: (was: 515807)
Time Spent: 1h (was: 50m)
> Trailing zeros of constant decimal numbers are removed
> ------------------------------------------------------
>
> Key: HIVE-24389
> URL: https://issues.apache.org/jira/browse/HIVE-24389
> Project: Hive
> Issue Type: Bug
> Components: Types
> Reporter: Krisztian Kasa
> Assignee: Krisztian Kasa
> Priority: Major
> Labels: pull-request-available
> Time Spent: 1h
> Remaining Estimate: 0h
>
> In some case Hive removes trailing zeros of constant decimal numbers
> {code}
> select cast(1.1 as decimal(22, 2))
> 1.1
> {code}
> In this case *WritableConstantHiveDecimalObjectInspector* is used and this
> object inspector takes it's wrapped HiveDecimal scale instead of the scale
> specified in the wrapped typeinfo:
> {code}
> this = {WritableConstantHiveDecimalObjectInspector@14415}
> value = {HiveDecimalWritable@14426} "1.1"
> typeInfo = {DecimalTypeInfo@14421} "decimal(22,2)"{code}
> However in case of an expression with an aggregate function
> *WritableHiveDecimalObjectInspector* is used
> {code}
> select cast(sum(1.1) as decimal(22, 2))
> 1.10
> {code}
> {code}
> o = {HiveDecimalWritable@16633} "1.1"
> oi = {WritableHiveDecimalObjectInspector@16634}
> typeInfo = {DecimalTypeInfo@16640} "decimal(22,2)"
> {code}
> Casting the expressions to string
> {code:java}
> select cast(cast(1.1 as decimal(22, 2)) as string), cast(cast(sum(1.1) as
> decimal(22, 2)) as string)
> 1.1 1.10
> {code}
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