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https://issues.apache.org/jira/browse/CALCITE-2354?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16509422#comment-16509422
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Subbarao commented on CALCITE-2354:
-----------------------------------

Iam already having some of the functions in oracle database i.e :user defined 
functions like FN_CODE("columnname").Then how can i add these type of already 
existing functions in Apache calcite schema.

Can you tell me how to solve this task.Last one week onwards searching.If iam 
having some existing user defined functions like FN_code(" ") .then how to add 
schema in calcite and also when iam writing the sql query like

"select Fn_Code(caseno) from casedata";

It will be showing no match found for functions_signature.

 

> How to add existing user-defined functions in Schema
> ----------------------------------------------------
>
>                 Key: CALCITE-2354
>                 URL: https://issues.apache.org/jira/browse/CALCITE-2354
>             Project: Calcite
>          Issue Type: Bug
>          Components: jdbc-adapter
>            Reporter: Subbarao
>            Assignee: Julian Hyde
>            Priority: Critical
>
> Iam already having some of the functions in oracle database i.e :user defined 
> functions like FN_CODE("columnname").Then how can i add these type of already 
> existing functions in Apache calcite schema



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