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From "Danoja Dias (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (DERBY-4555) Expand SYSCS_IMPORT_TABLE to accept CSV file with header lines
Date Fri, 10 Jun 2016 16:04:21 GMT

     [ https://issues.apache.org/jira/browse/DERBY-4555?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Danoja Dias updated DERBY-4555:
-------------------------------
    Attachment: NoVarargs.diff
                Varargs.diff

Hi Rick,

Thank you very much for your detailed explanation.
I tried what you have said above referring to create_10_12_system_procedures() method. 
It works fine without adding the Varargs feature.  

When Vararg feature is added, I get the same exception above. I attached the both diff files.

I did not find any procedure that is in SystemProcedures.java that has varargs. But I saw
some 
procedures in Java5SystemProcedures.java has used the Varargs. 

Are there any thing that I have misssed?

Thanks

> Expand SYSCS_IMPORT_TABLE to accept CSV file with header lines
> --------------------------------------------------------------
>
>                 Key: DERBY-4555
>                 URL: https://issues.apache.org/jira/browse/DERBY-4555
>             Project: Derby
>          Issue Type: Improvement
>          Components: Miscellaneous
>            Reporter: Yair Lenga
>            Assignee: Danoja Dias
>         Attachments: NoVarargs.diff, Varargs.diff, gotException.diff, hardCoded.diff,
latest.diff, petlist.csv, petlist.csv, petlist.csv, repro.java
>
>
> The SYSCS_IMPORT_TABLE (and SYSCS_IMPORT_DATA) function allow import of data from external
resources. In general, they can process CSV files that created with various tools - with one
exception: the header line.
> While there is no accepted standard, most tools will include a header line in the CSV
file with column names. This convention is supported in Excel and many other tools.
> My Request: extend the SYSCS_IMPORT_TABLe and SYSCS_IMPORT_DATA (and other related procedures)
to include an extra indicator for the number of header lines to be ignored.
> As an extra bonus it will be help is the SYSCS_IMPORT_DATA will accept column names (instead
of column indexes) in the 'COLUMNINDEXES' arguments. E.g., it should be possible to indicate
COLUMNINDEXES of '1,3,sales,5,'. This feature will make it significantly easier to handle
cases where the external input files is extended to include additional columns.



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