[ https://issues.apache.org/jira/browse/HIVE-3401?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Phabricator updated HIVE-3401: ------------------------------ Attachment: HIVE-3401.D4821.2.patch navis updated the revision "HIVE-3401 [jira] Diversify grammar for split sampling". Reviewers: JIRA Support row num per split REVISION DETAIL https://reviews.facebook.net/D4821 AFFECTED FILES ql/src/java/org/apache/hadoop/hive/ql/exec/ExplainTask.java ql/src/java/org/apache/hadoop/hive/ql/exec/FetchOperator.java ql/src/java/org/apache/hadoop/hive/ql/exec/MapRedTask.java ql/src/java/org/apache/hadoop/hive/ql/exec/TableScanOperator.java ql/src/java/org/apache/hadoop/hive/ql/io/CombineHiveInputFormat.java ql/src/java/org/apache/hadoop/hive/ql/parse/Hive.g ql/src/java/org/apache/hadoop/hive/ql/parse/ParseDriver.java ql/src/java/org/apache/hadoop/hive/ql/parse/SemanticAnalyzer.java ql/src/java/org/apache/hadoop/hive/ql/parse/SplitSample.java ql/src/java/org/apache/hadoop/hive/ql/plan/MapredWork.java ql/src/java/org/apache/hadoop/hive/ql/plan/TableScanDesc.java ql/src/test/queries/clientpositive/split_sample.q ql/src/test/results/clientpositive/split_sample.q.out To: JIRA, navis > Diversify grammar for split sampling > ------------------------------------ > > Key: HIVE-3401 > URL: https://issues.apache.org/jira/browse/HIVE-3401 > Project: Hive > Issue Type: Improvement > Components: Query Processor > Reporter: Navis > Assignee: Navis > Priority: Trivial > Attachments: HIVE-3401.D4821.2.patch > > > Current split sampling only supports grammar like TABLESAMPLE(n PERCENT). But > some users wants to specify just the size of input. It can be easily > calculated with a few commands but it seemed good to support more grammars > something like TABLESAMPLE(500M). -- 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