Make use of ROWSKIPS and ROWCOUNT of RFC_READ_TABLE

[gllrt]

Two currently unused options of RFC_READ_TABLE are ROWSKIPS and ROWCOUNT. A possible way to incorporate them into RSAPReadTable is:

RSAPReadTable <- function(con, saptable, options=list(), delimiter=';', skip=0, n=-1L, fields=list())
{
  if(!RSAPValidHandle(con))
    stop("argument is not a valid RSAP con")
  library(reshape)
  parms <- list('DELIMITER' = delimiter,
                'QUERY_TABLE' = saptable,
                'OPTIONS' = list('TEXT' = options),
                'FIELDS' = list('FIELDNAME' = fields),
                'ROWSKIPS' = skip
  )
  if (n != -1L){
    parms[['ROWCOUNT']] <- n
  }
...

One has to bear in mind though that depending on the NW RFC version there could be limits on these based on their types - I've read of instances where ROWSKIPS is INT4 and thus limited to 999999. The version that is available to me does not seem to impose such restrictions.

[piersharding]

Hi -

I'm happy to take a pull request if you can provide one.

Thanks, Piers.