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https://issues.apache.org/jira/browse/DERBY-2777?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12502938
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Mamta A. Satoor commented on DERBY-2777:
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Collation does not apply to parameters to "+","-","SQRT", "ABS/ABSVAL" because
they only take numeric values.
DERBY-2777
Unary arithmetic operators "+","-","SQRT", "ABS/ABSVAL" only take numeric
parameters and hence no need to worry about collation information on parameters
to these operators.
> Parameters should take their collation from the context in which they are
> getting used rather than the current compilation schema
> ---------------------------------------------------------------------------------------------------------------------------------
>
> Key: DERBY-2777
> URL: https://issues.apache.org/jira/browse/DERBY-2777
> Project: Derby
> Issue Type: Bug
> Components: SQL
> Affects Versions: 10.3.0.0
> Reporter: Mamta A. Satoor
> Assignee: Mamta A. Satoor
>
> With revision 542646, changes were made so that parameters will take their
> collation from current compilation schema. But based on the following thread
> http://www.nabble.com/Collation-and-parameter-markers-(-)-tf3866040.html ,
> using the collation from the context would be the correct thing to do for the
> parameters.
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