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Posted to issues@hive.apache.org by "Xiaomeng Huang (JIRA)" <ji...@apache.org> on 2017/06/22 03:31:00 UTC
[jira] [Updated] (HIVE-16936) wrong result with CTAS(create table
as select)
[ https://issues.apache.org/jira/browse/HIVE-16936?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Xiaomeng Huang updated HIVE-16936:
----------------------------------
Description:
1.
{code}
hive> desc abc_test_old;
OK
did string
activetime int
{code}
2.
{code}
hive> select 'test' as did from abc_test_old
> where did = '5FCAFD34-C124-4E13-AF65-27B675C945CC' limit 1;
OK
test
{code}
result is 'test'
3.
{code}
hive> create table abc_test_12345 as
> select 'test' as did from abc_test_old
> where did = '5FCAFD34-C124-4E13-AF65-27B675C945CC' limit 1;
hive> select did from abc_test_12345 limit 1;
OK
5FCAFD34-C124-4E13-AF65-27B675C945CC
{code}
result is '5FCAFD34-C124-4E13-AF65-27B675C945CC'
why result is not 'test'?
4.
{code}
hive> explain
> create table abc_test_12345 as
> select 'test' as did from abc_test_old
> where did = '5FCAFD34-C124-4E13-AF65-27B675C945CC' limit 1;
OK
STAGE DEPENDENCIES:
Stage-1 is a root stage
Stage-6 depends on stages: Stage-1 , consists of Stage-3, Stage-2, Stage-4
Stage-3
Stage-0 depends on stages: Stage-3, Stage-2, Stage-5
Stage-7 depends on stages: Stage-0
Stage-2
Stage-4
Stage-5 depends on stages: Stage-4
STAGE PLANS:
Stage: Stage-1
Map Reduce
Map Operator Tree:
TableScan
alias: abc_test_old
Statistics: Num rows: 32 Data size: 1152 Basic stats: COMPLETE Column stats: NONE
Filter Operator
predicate: (did = '5FCAFD34-C124-4E13-AF65-27B675C945CC') (type: boolean)
Statistics: Num rows: 16 Data size: 576 Basic stats: COMPLETE Column stats: NONE
Select Operator
Statistics: Num rows: 16 Data size: 576 Basic stats: COMPLETE Column stats: NONE
Limit
Number of rows: 1
Statistics: Num rows: 1 Data size: 36 Basic stats: COMPLETE Column stats: NONE
Reduce Output Operator
sort order:
Statistics: Num rows: 1 Data size: 36 Basic stats: COMPLETE Column stats: NONE
Reduce Operator Tree:
Select Operator
expressions: '5FCAFD34-C124-4E13-AF65-27B675C945CC' (type: string)
outputColumnNames: _col0
Statistics: Num rows: 1 Data size: 36 Basic stats: COMPLETE Column stats: NONE
Limit
Number of rows: 1
Statistics: Num rows: 1 Data size: 36 Basic stats: COMPLETE Column stats: NONE
File Output Operator
compressed: true
Statistics: Num rows: 1 Data size: 36 Basic stats: COMPLETE Column stats: NONE
table:
input format: org.apache.hadoop.hive.ql.io.orc.OrcInputFormat
output format: org.apache.hadoop.hive.ql.io.orc.OrcOutputFormat
serde: org.apache.hadoop.hive.ql.io.orc.OrcSerde
name: default.abc_test_12345
......
{code}
why expressions is '5FCAFD34-C124-4E13-AF65-27B675C945CC'
was:
1.
{code}
hive> select 'test' as did from abc_test_old
> where did = '5FCAFD34-C124-4E13-AF65-27B675C945CC' limit 1;
OK
test
{code}
result is 'test'
2.
{code}
hive> create table abc_test_12345 as
> select 'test' as did from abc_test_old
> where did = '5FCAFD34-C124-4E13-AF65-27B675C945CC' limit 1;
hive> select did from abc_test_12345 limit 1;
OK
5FCAFD34-C124-4E13-AF65-27B675C945CC
{code}
result is '5FCAFD34-C124-4E13-AF65-27B675C945CC'
why result is not 'test'?
3.
{code}
hive> explain
> create table abc_test_12345 as
> select 'test' as did from abc_test_old
> where did = '5FCAFD34-C124-4E13-AF65-27B675C945CC' limit 1;
OK
STAGE DEPENDENCIES:
Stage-1 is a root stage
Stage-6 depends on stages: Stage-1 , consists of Stage-3, Stage-2, Stage-4
Stage-3
Stage-0 depends on stages: Stage-3, Stage-2, Stage-5
Stage-7 depends on stages: Stage-0
Stage-2
Stage-4
Stage-5 depends on stages: Stage-4
STAGE PLANS:
Stage: Stage-1
Map Reduce
Map Operator Tree:
TableScan
alias: abc_test_old
Statistics: Num rows: 32 Data size: 1152 Basic stats: COMPLETE Column stats: NONE
Filter Operator
predicate: (did = '5FCAFD34-C124-4E13-AF65-27B675C945CC') (type: boolean)
Statistics: Num rows: 16 Data size: 576 Basic stats: COMPLETE Column stats: NONE
Select Operator
Statistics: Num rows: 16 Data size: 576 Basic stats: COMPLETE Column stats: NONE
Limit
Number of rows: 1
Statistics: Num rows: 1 Data size: 36 Basic stats: COMPLETE Column stats: NONE
Reduce Output Operator
sort order:
Statistics: Num rows: 1 Data size: 36 Basic stats: COMPLETE Column stats: NONE
Reduce Operator Tree:
Select Operator
expressions: '5FCAFD34-C124-4E13-AF65-27B675C945CC' (type: string)
outputColumnNames: _col0
Statistics: Num rows: 1 Data size: 36 Basic stats: COMPLETE Column stats: NONE
Limit
Number of rows: 1
Statistics: Num rows: 1 Data size: 36 Basic stats: COMPLETE Column stats: NONE
File Output Operator
compressed: true
Statistics: Num rows: 1 Data size: 36 Basic stats: COMPLETE Column stats: NONE
table:
input format: org.apache.hadoop.hive.ql.io.orc.OrcInputFormat
output format: org.apache.hadoop.hive.ql.io.orc.OrcOutputFormat
serde: org.apache.hadoop.hive.ql.io.orc.OrcSerde
name: default.abc_test_12345
......
{code}
why expressions is '5FCAFD34-C124-4E13-AF65-27B675C945CC'
> wrong result with CTAS(create table as select)
> ----------------------------------------------
>
> Key: HIVE-16936
> URL: https://issues.apache.org/jira/browse/HIVE-16936
> Project: Hive
> Issue Type: Bug
> Affects Versions: 1.2.1
> Reporter: Xiaomeng Huang
> Priority: Critical
>
> 1.
> {code}
> hive> desc abc_test_old;
> OK
> did string
> activetime int
> {code}
> 2.
> {code}
> hive> select 'test' as did from abc_test_old
> > where did = '5FCAFD34-C124-4E13-AF65-27B675C945CC' limit 1;
> OK
> test
> {code}
> result is 'test'
> 3.
> {code}
> hive> create table abc_test_12345 as
> > select 'test' as did from abc_test_old
> > where did = '5FCAFD34-C124-4E13-AF65-27B675C945CC' limit 1;
> hive> select did from abc_test_12345 limit 1;
> OK
> 5FCAFD34-C124-4E13-AF65-27B675C945CC
> {code}
> result is '5FCAFD34-C124-4E13-AF65-27B675C945CC'
> why result is not 'test'?
> 4.
> {code}
> hive> explain
> > create table abc_test_12345 as
> > select 'test' as did from abc_test_old
> > where did = '5FCAFD34-C124-4E13-AF65-27B675C945CC' limit 1;
> OK
> STAGE DEPENDENCIES:
> Stage-1 is a root stage
> Stage-6 depends on stages: Stage-1 , consists of Stage-3, Stage-2, Stage-4
> Stage-3
> Stage-0 depends on stages: Stage-3, Stage-2, Stage-5
> Stage-7 depends on stages: Stage-0
> Stage-2
> Stage-4
> Stage-5 depends on stages: Stage-4
> STAGE PLANS:
> Stage: Stage-1
> Map Reduce
> Map Operator Tree:
> TableScan
> alias: abc_test_old
> Statistics: Num rows: 32 Data size: 1152 Basic stats: COMPLETE Column stats: NONE
> Filter Operator
> predicate: (did = '5FCAFD34-C124-4E13-AF65-27B675C945CC') (type: boolean)
> Statistics: Num rows: 16 Data size: 576 Basic stats: COMPLETE Column stats: NONE
> Select Operator
> Statistics: Num rows: 16 Data size: 576 Basic stats: COMPLETE Column stats: NONE
> Limit
> Number of rows: 1
> Statistics: Num rows: 1 Data size: 36 Basic stats: COMPLETE Column stats: NONE
> Reduce Output Operator
> sort order:
> Statistics: Num rows: 1 Data size: 36 Basic stats: COMPLETE Column stats: NONE
> Reduce Operator Tree:
> Select Operator
> expressions: '5FCAFD34-C124-4E13-AF65-27B675C945CC' (type: string)
> outputColumnNames: _col0
> Statistics: Num rows: 1 Data size: 36 Basic stats: COMPLETE Column stats: NONE
> Limit
> Number of rows: 1
> Statistics: Num rows: 1 Data size: 36 Basic stats: COMPLETE Column stats: NONE
> File Output Operator
> compressed: true
> Statistics: Num rows: 1 Data size: 36 Basic stats: COMPLETE Column stats: NONE
> table:
> input format: org.apache.hadoop.hive.ql.io.orc.OrcInputFormat
> output format: org.apache.hadoop.hive.ql.io.orc.OrcOutputFormat
> serde: org.apache.hadoop.hive.ql.io.orc.OrcSerde
> name: default.abc_test_12345
> ......
> {code}
> why expressions is '5FCAFD34-C124-4E13-AF65-27B675C945CC'
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