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https://issues.apache.org/jira/browse/CALCITE-5078?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17515896#comment-17515896
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Magnus Mogren commented on CALCITE-5078:
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Ok. I tried the SQL on both PostgreSQL, DB2 and SQL Server and they all
returned 'a' before 'B' but never reflected on collation. They all use some
Swedish collation.
> ORDER BY gets confused by upper/lower case
> ------------------------------------------
>
> Key: CALCITE-5078
> URL: https://issues.apache.org/jira/browse/CALCITE-5078
> Project: Calcite
> Issue Type: Bug
> Affects Versions: 1.30.0
> Reporter: Magnus Mogren
> Priority: Major
>
> This SQL returnes the values in the wrong order:
> {{SELECT * FROM (VALUES ('a'), ('B')) AS tbl(col1) order by col1 asc}}
> "B" is returned before "a".
>
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