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From "Bryan Pendleton (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (DERBY-4555) Expand SYSCS_IMPORT_TABLE to accept CSV file with header lines
Date Tue, 26 Jul 2016 00:22:20 GMT

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

Bryan Pendleton resolved DERBY-4555.
------------------------------------
       Resolution: Fixed
    Fix Version/s: 10.13.0.0

I agree; those line number error message improvements are beyond
the scope of this JIRA issue. If you would like to log a new issue,
recording the experiments you and I made, and the places where we
think the error-handling could be improved, I think that would be
very nice.

In the meantime, I agree that we've completed all the work we
intended for this issue. Resolving.

> 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
>             Fix For: 10.13.0.0
>
>         Attachments: LineNumberIssue.diff, NoVarargs.diff, Varargs.diff, addNewSystemProcedureWithTest.diff,
addNewSystemProcedureWithTest_1.diff, addNewSystemProcedure_1.diff, gotException.diff, hardCoded.diff,
latest.diff, noHeaderLines.csv, petlist.csv, petlist.csv, petlist.csv, repro.java, repro.java,
repro.java, skipHeaders.diff
>
>
> 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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