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https://issues.apache.org/jira/browse/CALCITE-1466?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17907966#comment-17907966
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Zhengqiang Duan commented on CALCITE-1466:
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Thanks for mentioning these key points [~mbudiu], I will investigate the
options to implement UNSIGNED and will update in Jira if there is any progress.
> Support for UNSIGNED types of int,long,float etc. in type system
> ----------------------------------------------------------------
>
> Key: CALCITE-1466
> URL: https://issues.apache.org/jira/browse/CALCITE-1466
> Project: Calcite
> Issue Type: Bug
> Components: avatica
> Reporter: Rajeshbabu Chintaguntla
> Assignee: Zhengqiang Duan
> Priority: Major
>
> There are some data bases like MySQL supporting unsigned data types. Apache
> Phoenix also supports them. Would be great to add them to calcite as well.
> http://dev.mysql.com/doc/refman/5.7/en/integer-types.html
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