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This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/20125/
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Review request for Tajo.
Bugs: TAJO-741
https://issues.apache.org/jira/browse/TAJO-741
Repository: tajo
Description
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I found a bug for GreedyHeuristicJoinOrderAlgorithm as follows:
1. Table Schema
create external table table1 (id int, name text, score float, type text) using
csv with ('csvfile.delimiter'='|') location
'hdfs://server01:9010/tajo/warehouse/table1' ;
create external table table3 (id int, name text, score float, type text) using
csv with ('csvfile.delimiter'='|') location
'hdfs://localhost:9010/tajo/warehouse/table3' ;
create external table table4 (id int, name text, score float, type text) using
csv with ('csvfile.delimiter'='|') location
'hdfs://localhost:9010/tajo/warehouse/table4' ;
2. Table Data
2.1 table1
1|name1-1|1.1|a
2|name1-2|2.3|b
3|name1-3|3.4|c
4|name1-4|4.5|d
5|name1-5|5.6|e
2.2 table3
1|name3-1|0.1|a
2|name3-2|0.2|b
3|name3-3|0.3|b
2.3 table4
1|name4-1|22.3|a
2|name4-2|23.4|b
3|name4-3|24.5|cc
5|name4-4|25.6|ee
6|name4-5|31.1|ff
7|name4-6|32.3|gg
3. Query
select a.name, c.name, a.type, c.type from table1 a join table3 b on (a.id =
b.id) join table4 c on (b.id = c.id) where a.type = c.type;
4. Expected Result
name, name, type, type
-------------------------------
name1-1, name4-1, a, a
name1-2, name4-2, b, b
5. Active Result
name, name, type, type
-------------------------------
name1-1, name4-1, a, a
name1-2, name4-2, b, b
name1-3, name4-3, c, cc
I found that default.a.type (TEXT) = default.c.type (TEXT) is in initiative
plan result and FPD result.
But after executing GreedyHeuristicJoinOrderAlgorithm, it disappeared in
logical plan.
Diffs
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tajo-core/tajo-core-backend/src/main/java/org/apache/tajo/engine/planner/logical/join/GreedyHeuristicJoinOrderAlgorithm.java
ffa95fb
tajo-core/tajo-core-backend/src/test/java/org/apache/tajo/engine/planner/TestLogicalPlanner.java
6dda611
tajo-core/tajo-core-backend/src/test/java/org/apache/tajo/engine/query/TestJoinBroadcast.java
78714c5
tajo-core/tajo-core-backend/src/test/java/org/apache/tajo/engine/query/TestJoinQuery.java
6d72ca7
tajo-core/tajo-core-backend/src/test/resources/queries/TestJoinQuery/testTPCHQ2Join2.sql
PRE-CREATION
tajo-core/tajo-core-backend/src/test/resources/results/TestJoinQuery/testTPCHQ2Join2.result
PRE-CREATION
Diff: https://reviews.apache.org/r/20125/diff/
Testing
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Thanks,
Jung JaeHwa
