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https://issues.apache.org/jira/browse/CALCITE-1466?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18011286#comment-18011286
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Julian Hyde commented on CALCITE-1466:
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I see. JOOU provides wrapper classes and not much else, whereas Guava seems to
support more arithmetic operations. We definitely need a full set of wrapper
classes, so JOOU makes sense. If we find ourselves needing more arithmetic in
the future, we should lean on Guava's utility classes such as
[UnsignedLongs|https://guava.dev/releases/snapshot-jre/api/docs/com/google/common/primitives/UnsignedLongs.html].
> Support for UNSIGNED types of TINYINT, SMALLINT, INT, BIGINT in type system
> ---------------------------------------------------------------------------
>
> Key: CALCITE-1466
> URL: https://issues.apache.org/jira/browse/CALCITE-1466
> Project: Calcite
> Issue Type: Improvement
> Components: avatica
> Reporter: Rajeshbabu Chintaguntla
> Assignee: Mihai Budiu
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.41.0
>
>
> 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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