Expand SYSCS_IMPORT_TABLE to accept CSV file with header lines
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Key: DERBY-4555
URL: https://issues.apache.org/jira/browse/DERBY-4555
Project: Derby
Issue Type: Bug
Components: Miscellaneous
Reporter: Yair Lenga
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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