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https://issues.apache.org/jira/browse/HIVE-4221?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Phabricator updated HIVE-4221:
------------------------------
Attachment: HIVE-4221.HIVE-4221.HIVE-4221.HIVE-4221.D9759.2.patch
sxyuan updated the revision "HIVE-4221 [jira] Stripe-level merge for ORC files
".
Rebased and made updates based on comments. Confirmed that the merge is in
fact happening when running the orcfile_merge*.q files with TestMinimrCliDriver.
Reviewers: kevinwilfong, omalley
REVISION DETAIL
https://reviews.facebook.net/D9759
CHANGE SINCE LAST DIFF
https://reviews.facebook.net/D9759?vs=30621&id=33213#toc
AFFECTED FILES
conf/hive-default.xml.template
data/files/smbbucket_1.orc
data/files/smbbucket_3.orc
data/files/smbbucket_2.orc
build-common.xml
common/src/java/org/apache/hadoop/hive/conf/HiveConf.java
ql/src/test/results/clientpositive/orc_createas1.q.out
ql/src/test/results/clientpositive/orcfile_merge3.q.out
ql/src/test/results/clientpositive/orcfile_merge2.q.out
ql/src/test/results/clientpositive/alter_merge_orc2.q.out
ql/src/test/results/clientpositive/alter_merge_orc.q.out
ql/src/test/results/clientpositive/orcfile_merge1.q.out
ql/src/test/results/clientpositive/orcfile_merge4.q.out
ql/src/test/results/clientpositive/alter_merge_orc_stats.q.out
ql/src/test/org/apache/hadoop/hive/ql/io/orc/TestOrcFile.java
ql/src/test/queries/clientpositive/orcfile_merge2.q
ql/src/test/queries/clientpositive/orcfile_merge3.q
ql/src/test/queries/clientpositive/alter_merge_orc.q
ql/src/test/queries/clientpositive/orcfile_merge4.q
ql/src/test/queries/clientpositive/alter_merge_orc_stats.q
ql/src/test/queries/clientpositive/orcfile_merge1.q
ql/src/test/queries/clientpositive/alter_merge_orc2.q
ql/src/java/org/apache/hadoop/hive/ql/optimizer/GenMRFileSink1.java
ql/src/java/org/apache/hadoop/hive/ql/exec/TaskFactory.java
ql/src/java/org/apache/hadoop/hive/ql/exec/DDLTask.java
ql/src/java/org/apache/hadoop/hive/ql/exec/MoveTask.java
ql/src/java/org/apache/hadoop/hive/ql/plan/PlanUtils.java
ql/src/java/org/apache/hadoop/hive/ql/parse/AlterTablePartMergeFilesDesc.java
ql/src/java/org/apache/hadoop/hive/ql/parse/DDLSemanticAnalyzer.java
ql/src/java/org/apache/hadoop/hive/ql/io/RCFile.java
ql/src/java/org/apache/hadoop/hive/ql/io/rcfile/merge/MergeWork.java
ql/src/java/org/apache/hadoop/hive/ql/io/rcfile/merge/RCFileBlockMergeOutputFormat.java
ql/src/java/org/apache/hadoop/hive/ql/io/rcfile/merge/RCFileMergeMapper.java
ql/src/java/org/apache/hadoop/hive/ql/io/rcfile/merge/BlockMergeTask.java
ql/src/java/org/apache/hadoop/hive/ql/io/orc/OrcBlockMergeRecordReader.java
ql/src/java/org/apache/hadoop/hive/ql/io/orc/Reader.java
ql/src/java/org/apache/hadoop/hive/ql/io/orc/OrcBlockMergeInputFormat.java
ql/src/java/org/apache/hadoop/hive/ql/io/orc/OrcMergeMapper.java
ql/src/java/org/apache/hadoop/hive/ql/io/orc/OrcFile.java
ql/src/java/org/apache/hadoop/hive/ql/io/orc/ReaderImpl.java
ql/src/java/org/apache/hadoop/hive/ql/io/orc/StripeReader.java
ql/src/java/org/apache/hadoop/hive/ql/io/orc/WriterImpl.java
ql/src/java/org/apache/hadoop/hive/ql/io/merge
ql/src/java/org/apache/hadoop/hive/ql/io/merge/MergeWork.java
ql/src/java/org/apache/hadoop/hive/ql/io/merge/MergeMapper.java
ql/src/java/org/apache/hadoop/hive/ql/io/merge/BlockMergeOutputFormat.java
ql/src/java/org/apache/hadoop/hive/ql/io/merge/BlockMergeTask.java
To: kevinwilfong, omalley, sxyuan
Cc: JIRA
> Stripe-level merge for ORC files
> --------------------------------
>
> Key: HIVE-4221
> URL: https://issues.apache.org/jira/browse/HIVE-4221
> Project: Hive
> Issue Type: Improvement
> Components: Query Processor
> Reporter: Samuel Yuan
> Assignee: Samuel Yuan
> Attachments: HIVE-4221.HIVE-4221.HIVE-4221.HIVE-4221.D9759.1.patch,
> HIVE-4221.HIVE-4221.HIVE-4221.HIVE-4221.D9759.2.patch
>
>
> As with RC files, we would like to be able to merge ORC files efficiently by
> reading/writing stripes without decompressing/recompressing them. This will
> be similar to the RC file merge, except that footers will have to be updated
> with the stripe positions in the new file.
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