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https://issues.apache.org/jira/browse/HIVE-14610?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15433473#comment-15433473
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Vineet Garg commented on HIVE-14610:
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Return path currently doesn't support tablesample clause. So for now
hive.test.mode should skip return path as well
> CBO: Calcite Operator To Hive Operator(Calcite Return Path): Fix wrong result
> in input30
> ----------------------------------------------------------------------------------------
>
> Key: HIVE-14610
> URL: https://issues.apache.org/jira/browse/HIVE-14610
> Project: Hive
> Issue Type: Sub-task
> Components: CBO
> Reporter: Vineet Garg
> Assignee: Vineet Garg
>
> Setup:
> {code}
> set hive.mapred.mode=nonstrict;
> create table dest30(a int);
> create table tst_dest30(a int);
> set hive.test.mode=true;
> set hive.test.mode.prefix=tst_;
> insert overwrite table dest30
> select count(1) from src;
> {code}
> Query:
> {code} select * from tst_dest30; {code}
> Expected Result:
> {code} 10 {code}
> Actual Result:
> {code} 500 {code}
> Turning on hive test mode is suppose to generate sampling (implicit
> tablesample clause) but return path isn't honoring hive.test.mode flag
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