[jira] [Created] (SYSTEMML-1846) Transformapply w/ column names fails with index-out-of-bounds

["Matthias Boehm (JIRA)" <ji...@apache.org>]

Matthias Boehm created SYSTEMML-1846:
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             Summary: Transformapply w/ column names fails with index-out-of-bounds
                 Key: SYSTEMML-1846
                 URL: https://issues.apache.org/jira/browse/SYSTEMML-1846
             Project: SystemML
          Issue Type: Bug
            Reporter: Matthias Boehm


Given a simple transformapply scenario as shown in the following script
{code}
spec = "{ids: false, recode: [ zipcode, district, view ]}";
[X, M] = transformencode(target=F, spec=spec);
spec2 = "{ids: false, recode: [ zipcode ]}";
X2 = transformapply(target=F[,1], spec=spec2, meta=M);
{code}

currently leads to index out-of-bounds exceptions because the column name zipcode is not found in the column names of the meta data frame. The root cause is a wrong assumption of sorted column names in the underlying implementation.



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