[jira] [Updated] (HIVE-3306) SMBJoin/BucketMapJoin should be allowed only when join key expression is exactly matches with sort/cluster key
[ https://issues.apache.org/jira/browse/HIVE-3306?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Namit Jain updated HIVE-3306: - Resolution: Fixed Fix Version/s: 0.10.0 Hadoop Flags: Reviewed Status: Resolved (was: Patch Available) Committed. Thanks Navis SMBJoin/BucketMapJoin should be allowed only when join key expression is exactly matches with sort/cluster key -- Key: HIVE-3306 URL: https://issues.apache.org/jira/browse/HIVE-3306 Project: Hive Issue Type: Bug Components: Query Processor Affects Versions: 0.10.0 Reporter: Navis Assignee: Navis Priority: Minor Fix For: 0.10.0 Attachments: HIVE-3306.1.patch.txt CREATE TABLE bucket_small (key int, value string) CLUSTERED BY (key) SORTED BY (key) INTO 2 BUCKETS STORED AS TEXTFILE; load data local inpath '/home/navis/apache/oss-hive/data/files/srcsortbucket1outof4.txt' INTO TABLE bucket_small; load data local inpath '/home/navis/apache/oss-hive/data/files/srcsortbucket2outof4.txt' INTO TABLE bucket_small; CREATE TABLE bucket_big (key int, value string) CLUSTERED BY (key) SORTED BY (key) INTO 4 BUCKETS STORED AS TEXTFILE; load data local inpath '/home/navis/apache/oss-hive/data/files/srcsortbucket1outof4.txt' INTO TABLE bucket_big; load data local inpath '/home/navis/apache/oss-hive/data/files/srcsortbucket2outof4.txt' INTO TABLE bucket_big; load data local inpath '/home/navis/apache/oss-hive/data/files/srcsortbucket3outof4.txt' INTO TABLE bucket_big; load data local inpath '/home/navis/apache/oss-hive/data/files/srcsortbucket4outof4.txt' INTO TABLE bucket_big; select count(*) FROM bucket_small a JOIN bucket_big b ON a.key + a.key = b.key; select /* + MAPJOIN(a) */ count(*) FROM bucket_small a JOIN bucket_big b ON a.key + a.key = b.key; returns 116 (same) But with BucketMapJoin or SMBJoin, it returns 61. But this should not be allowed cause hash(a.key) != hash(a.key + a.key). Bucket context should be utilized only with exact matching join expression with sort/cluster key. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira
[jira] [Updated] (HIVE-3306) SMBJoin/BucketMapJoin should be allowed only when join key expression is exactly matches with sort/cluster key
[ https://issues.apache.org/jira/browse/HIVE-3306?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Navis updated HIVE-3306: Status: Patch Available (was: Open) SMBJoin/BucketMapJoin should be allowed only when join key expression is exactly matches with sort/cluster key -- Key: HIVE-3306 URL: https://issues.apache.org/jira/browse/HIVE-3306 Project: Hive Issue Type: Bug Components: Query Processor Affects Versions: 0.10.0 Reporter: Navis Assignee: Navis Priority: Minor CREATE TABLE bucket_small (key int, value string) CLUSTERED BY (key) SORTED BY (key) INTO 2 BUCKETS STORED AS TEXTFILE; load data local inpath '/home/navis/apache/oss-hive/data/files/srcsortbucket1outof4.txt' INTO TABLE bucket_small; load data local inpath '/home/navis/apache/oss-hive/data/files/srcsortbucket2outof4.txt' INTO TABLE bucket_small; CREATE TABLE bucket_big (key int, value string) CLUSTERED BY (key) SORTED BY (key) INTO 4 BUCKETS STORED AS TEXTFILE; load data local inpath '/home/navis/apache/oss-hive/data/files/srcsortbucket1outof4.txt' INTO TABLE bucket_big; load data local inpath '/home/navis/apache/oss-hive/data/files/srcsortbucket2outof4.txt' INTO TABLE bucket_big; load data local inpath '/home/navis/apache/oss-hive/data/files/srcsortbucket3outof4.txt' INTO TABLE bucket_big; load data local inpath '/home/navis/apache/oss-hive/data/files/srcsortbucket4outof4.txt' INTO TABLE bucket_big; select count(*) FROM bucket_small a JOIN bucket_big b ON a.key + a.key = b.key; select /* + MAPJOIN(a) */ count(*) FROM bucket_small a JOIN bucket_big b ON a.key + a.key = b.key; returns 116 (same) But with BucketMapJoin or SMBJoin, it returns 61. But this should not be allowed cause hash(a.key) != hash(a.key + a.key). Bucket context should be utilized only with exact matching join expression with sort/cluster key. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira
[jira] [Updated] (HIVE-3306) SMBJoin/BucketMapJoin should be allowed only when join key expression is exactly matches with sort/cluster key
[ https://issues.apache.org/jira/browse/HIVE-3306?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Navis updated HIVE-3306: Attachment: HIVE-3306.1.patch.txt SMBJoin/BucketMapJoin should be allowed only when join key expression is exactly matches with sort/cluster key -- Key: HIVE-3306 URL: https://issues.apache.org/jira/browse/HIVE-3306 Project: Hive Issue Type: Bug Components: Query Processor Affects Versions: 0.10.0 Reporter: Navis Assignee: Navis Priority: Minor Attachments: HIVE-3306.1.patch.txt CREATE TABLE bucket_small (key int, value string) CLUSTERED BY (key) SORTED BY (key) INTO 2 BUCKETS STORED AS TEXTFILE; load data local inpath '/home/navis/apache/oss-hive/data/files/srcsortbucket1outof4.txt' INTO TABLE bucket_small; load data local inpath '/home/navis/apache/oss-hive/data/files/srcsortbucket2outof4.txt' INTO TABLE bucket_small; CREATE TABLE bucket_big (key int, value string) CLUSTERED BY (key) SORTED BY (key) INTO 4 BUCKETS STORED AS TEXTFILE; load data local inpath '/home/navis/apache/oss-hive/data/files/srcsortbucket1outof4.txt' INTO TABLE bucket_big; load data local inpath '/home/navis/apache/oss-hive/data/files/srcsortbucket2outof4.txt' INTO TABLE bucket_big; load data local inpath '/home/navis/apache/oss-hive/data/files/srcsortbucket3outof4.txt' INTO TABLE bucket_big; load data local inpath '/home/navis/apache/oss-hive/data/files/srcsortbucket4outof4.txt' INTO TABLE bucket_big; select count(*) FROM bucket_small a JOIN bucket_big b ON a.key + a.key = b.key; select /* + MAPJOIN(a) */ count(*) FROM bucket_small a JOIN bucket_big b ON a.key + a.key = b.key; returns 116 (same) But with BucketMapJoin or SMBJoin, it returns 61. But this should not be allowed cause hash(a.key) != hash(a.key + a.key). Bucket context should be utilized only with exact matching join expression with sort/cluster key. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira
[jira] [Updated] (HIVE-3306) SMBJoin/BucketMapJoin should be allowed only when join key expression is exactly matches with sort/cluster key
[ https://issues.apache.org/jira/browse/HIVE-3306?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Namit Jain updated HIVE-3306: - Status: Open (was: Patch Available) comments SMBJoin/BucketMapJoin should be allowed only when join key expression is exactly matches with sort/cluster key -- Key: HIVE-3306 URL: https://issues.apache.org/jira/browse/HIVE-3306 Project: Hive Issue Type: Bug Components: Query Processor Affects Versions: 0.10.0 Reporter: Navis Assignee: Navis Priority: Minor CREATE TABLE bucket_small (key int, value string) CLUSTERED BY (key) SORTED BY (key) INTO 2 BUCKETS STORED AS TEXTFILE; load data local inpath '/home/navis/apache/oss-hive/data/files/srcsortbucket1outof4.txt' INTO TABLE bucket_small; load data local inpath '/home/navis/apache/oss-hive/data/files/srcsortbucket2outof4.txt' INTO TABLE bucket_small; CREATE TABLE bucket_big (key int, value string) CLUSTERED BY (key) SORTED BY (key) INTO 4 BUCKETS STORED AS TEXTFILE; load data local inpath '/home/navis/apache/oss-hive/data/files/srcsortbucket1outof4.txt' INTO TABLE bucket_big; load data local inpath '/home/navis/apache/oss-hive/data/files/srcsortbucket2outof4.txt' INTO TABLE bucket_big; load data local inpath '/home/navis/apache/oss-hive/data/files/srcsortbucket3outof4.txt' INTO TABLE bucket_big; load data local inpath '/home/navis/apache/oss-hive/data/files/srcsortbucket4outof4.txt' INTO TABLE bucket_big; select count(*) FROM bucket_small a JOIN bucket_big b ON a.key + a.key = b.key; select /* + MAPJOIN(a) */ count(*) FROM bucket_small a JOIN bucket_big b ON a.key + a.key = b.key; returns 116 (same) But with BucketMapJoin or SMBJoin, it returns 61. But this should not be allowed cause hash(a.key) != hash(a.key + a.key). Bucket context should be utilized only with exact matching join expression with sort/cluster key. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa For more information on JIRA, see: http://www.atlassian.com/software/jira
[jira] [Updated] (HIVE-3306) SMBJoin/BucketMapJoin should be allowed only when join key expression is exactly matches with sort/cluster key
[ https://issues.apache.org/jira/browse/HIVE-3306?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Navis updated HIVE-3306: Status: Patch Available (was: Open) https://reviews.facebook.net/D4461 SMBJoin/BucketMapJoin should be allowed only when join key expression is exactly matches with sort/cluster key -- Key: HIVE-3306 URL: https://issues.apache.org/jira/browse/HIVE-3306 Project: Hive Issue Type: Bug Components: Query Processor Affects Versions: 0.10.0 Reporter: Navis Assignee: Navis Priority: Minor CREATE TABLE bucket_small (key int, value string) CLUSTERED BY (key) SORTED BY (key) INTO 2 BUCKETS STORED AS TEXTFILE; load data local inpath '/home/navis/apache/oss-hive/data/files/srcsortbucket1outof4.txt' INTO TABLE bucket_small; load data local inpath '/home/navis/apache/oss-hive/data/files/srcsortbucket2outof4.txt' INTO TABLE bucket_small; CREATE TABLE bucket_big (key int, value string) CLUSTERED BY (key) SORTED BY (key) INTO 4 BUCKETS STORED AS TEXTFILE; load data local inpath '/home/navis/apache/oss-hive/data/files/srcsortbucket1outof4.txt' INTO TABLE bucket_big; load data local inpath '/home/navis/apache/oss-hive/data/files/srcsortbucket2outof4.txt' INTO TABLE bucket_big; load data local inpath '/home/navis/apache/oss-hive/data/files/srcsortbucket3outof4.txt' INTO TABLE bucket_big; load data local inpath '/home/navis/apache/oss-hive/data/files/srcsortbucket4outof4.txt' INTO TABLE bucket_big; select count(*) FROM bucket_small a JOIN bucket_big b ON a.key + a.key = b.key; select /* + MAPJOIN(a) */ count(*) FROM bucket_small a JOIN bucket_big b ON a.key + a.key = b.key; returns 116 (same) But with BucketMapJoin or SMBJoin, it returns 61. But this should not be allowed cause hash(a.key) != hash(a.key + a.key). Bucket context should be utilized only with exact matching join expression with sort/cluster key. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa For more information on JIRA, see: http://www.atlassian.com/software/jira
