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https://issues.apache.org/jira/browse/HIVE-23269?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17113773#comment-17113773
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Zhihua Deng commented on HIVE-23269:
------------------------------------

[~kgyrtkirk] could you take some time to look at the changes again?  thanks.

> Unsafe comparing bigints and strings
> ------------------------------------
>
>                 Key: HIVE-23269
>                 URL: https://issues.apache.org/jira/browse/HIVE-23269
>             Project: Hive
>          Issue Type: Improvement
>    Affects Versions: 4.0.0
>            Reporter: Zhihua Deng
>            Priority: Major
>         Attachments: HIVE-23269.2.patch, HIVE-23269.patch
>
>          Time Spent: 1.5h
>  Remaining Estimate: 0h
>
> Comparing bigints and varchars or chars may result to wrong result,  for 
> example:
> CREATE TABLE test_a (appid1 varchar(256),  appid2 char(20));
> INSERT INTO  test_a VALUES ('2882303761517473127', '2882303761517473127'), 
> ('2882303761517473276','2882303761517473276');
> SET hive.strict.checks.type.safety=false;
> SELECT appid1 FROM test_a WHERE appid1 = 2882303761517473127;
> SELECT appid2 FROM test_a WHERE appid2 = 2882303761517473127;‚Äč
> Both queries will output the row: 
> ('2882303761517473276','2882303761517473276')



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