Deron Eriksson created SYSTEMML-522:
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Summary: Add optional description parameter to read function
Key: SYSTEMML-522
URL: https://issues.apache.org/jira/browse/SYSTEMML-522
Project: SystemML
Issue Type: Task
Components: APIs, Parser
Reporter: Deron Eriksson
Priority: Minor
Metadata attributes can typically be passed as function parameters. For
example, in the first call below, we see that the header and sep attributes are
passed successfully as function parameters to the read() function.
{code}
# good
b = read("m.csv", header=FALSE, sep=",");
# bad
c = read("m.csv", header=FALSE, sep=",", description="desc");
{code}
However, if someone tries to pass in a description attribute as a function
parameter (as in the second example above), it blows up with an unhelpful error
message:
{code}
Caused by: org.apache.sysml.parser.ParseException: One or more errors found
during parsing (could not construct AST for file: hello.dml). Cannot proceed
ahead.
{code}
Even if the description attribute isn't being used for anything, given that it
is a valid metadata attribute, it shouldn't blow up the script when passed as a
function parameter.
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