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Posted to issues@hive.apache.org by "Jesus Camacho Rodriguez (JIRA)" <ji...@apache.org> on 2016/05/16 09:08:12 UTC
[jira] [Work stopped] (HIVE-13693) Multi-insert query drops Filter
before file output when there is a.val <> b.val
[ https://issues.apache.org/jira/browse/HIVE-13693?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Work on HIVE-13693 stopped by Jesus Camacho Rodriguez.
------------------------------------------------------
> Multi-insert query drops Filter before file output when there is a.val <> b.val
> -------------------------------------------------------------------------------
>
> Key: HIVE-13693
> URL: https://issues.apache.org/jira/browse/HIVE-13693
> Project: Hive
> Issue Type: Bug
> Components: Logical Optimizer
> Affects Versions: 1.3.0, 2.0.0, 2.1.0
> Reporter: Jesus Camacho Rodriguez
> Assignee: Jesus Camacho Rodriguez
> Attachments: HIVE-13693.01.patch, HIVE-13693.01.patch, HIVE-13693.patch
>
>
> To reproduce:
> {noformat}
> CREATE TABLE T_A ( id STRING, val STRING );
> CREATE TABLE T_B ( id STRING, val STRING );
> CREATE TABLE join_result_1 ( ida STRING, vala STRING, idb STRING, valb STRING );
> CREATE TABLE join_result_3 ( ida STRING, vala STRING, idb STRING, valb STRING );
> INSERT INTO TABLE T_A
> VALUES ('Id_1', 'val_101'), ('Id_2', 'val_102'), ('Id_3', 'val_103');
> INSERT INTO TABLE T_B
> VALUES ('Id_1', 'val_103'), ('Id_2', 'val_104');
> explain
> FROM T_A a LEFT JOIN T_B b ON a.id = b.id
> INSERT OVERWRITE TABLE join_result_1
> SELECT a.*, b.*
> WHERE b.id = 'Id_1' AND b.val = 'val_103'
> INSERT OVERWRITE TABLE join_result_3
> SELECT a.*, b.*
> WHERE b.val = 'val_104' AND b.id = 'Id_2' AND a.val <> b.val;
> {noformat}
> The (wrong) plan is the following:
> {noformat}
> STAGE DEPENDENCIES:
> Stage-2 is a root stage
> Stage-3 depends on stages: Stage-2
> Stage-0 depends on stages: Stage-3
> Stage-4 depends on stages: Stage-0
> Stage-1 depends on stages: Stage-3
> Stage-5 depends on stages: Stage-1
> STAGE PLANS:
> Stage: Stage-2
> Tez
> DagId: haha_20160504140944_174465c9-5d1a-42f9-9665-fae02eeb2767:2
> Edges:
> Reducer 2 <- Map 1 (SIMPLE_EDGE), Map 3 (SIMPLE_EDGE)
> DagName:
> Vertices:
> Map 1
> Map Operator Tree:
> TableScan
> alias: a
> Statistics: Num rows: 3 Data size: 36 Basic stats: COMPLETE Column stats: NONE
> Reduce Output Operator
> key expressions: id (type: string)
> sort order: +
> Map-reduce partition columns: id (type: string)
> Statistics: Num rows: 3 Data size: 36 Basic stats: COMPLETE Column stats: NONE
> value expressions: val (type: string)
> Map 3
> Map Operator Tree:
> TableScan
> alias: b
> Statistics: Num rows: 2 Data size: 24 Basic stats: COMPLETE Column stats: NONE
> Reduce Output Operator
> key expressions: id (type: string)
> sort order: +
> Map-reduce partition columns: id (type: string)
> Statistics: Num rows: 2 Data size: 24 Basic stats: COMPLETE Column stats: NONE
> value expressions: val (type: string)
> Reducer 2
> Reduce Operator Tree:
> Merge Join Operator
> condition map:
> Left Outer Join0 to 1
> keys:
> 0 id (type: string)
> 1 id (type: string)
> outputColumnNames: _col0, _col1, _col6
> Statistics: Num rows: 3 Data size: 39 Basic stats: COMPLETE Column stats: NONE
> Select Operator
> expressions: _col0 (type: string), _col1 (type: string), 'Id_1' (type: string), 'val_103' (type: string)
> outputColumnNames: _col0, _col1, _col2, _col3
> Statistics: Num rows: 3 Data size: 39 Basic stats: COMPLETE Column stats: NONE
> File Output Operator
> compressed: false
> Statistics: Num rows: 3 Data size: 39 Basic stats: COMPLETE Column stats: NONE
> table:
> input format: org.apache.hadoop.mapred.TextInputFormat
> output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat
> serde: org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe
> name: bugtest2.join_result_1
> Filter Operator
> predicate: (_col1 <> _col6) (type: boolean)
> Statistics: Num rows: 3 Data size: 39 Basic stats: COMPLETE Column stats: NONE
> Select Operator
> expressions: _col0 (type: string), _col1 (type: string), 'Id_2' (type: string), 'val_104' (type: string)
> outputColumnNames: _col0, _col1, _col2, _col3
> Statistics: Num rows: 3 Data size: 39 Basic stats: COMPLETE Column stats: NONE
> File Output Operator
> compressed: false
> Statistics: Num rows: 3 Data size: 39 Basic stats: COMPLETE Column stats: NONE
> table:
> input format: org.apache.hadoop.mapred.TextInputFormat
> output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat
> serde: org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe
> name: bugtest2.join_result_3
> Stage: Stage-3
> Dependency Collection
> Stage: Stage-0
> Move Operator
> tables:
> replace: true
> table:
> input format: org.apache.hadoop.mapred.TextInputFormat
> output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat
> serde: org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe
> name: bugtest2.join_result_1
> Stage: Stage-4
> Stats-Aggr Operator
> Stage: Stage-1
> Move Operator
> tables:
> replace: true
> table:
> input format: org.apache.hadoop.mapred.TextInputFormat
> output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat
> serde: org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe
> name: bugtest2.join_result_3
> Stage: Stage-5
> Stats-Aggr Operator
> {noformat}
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