Mike Dusenberry created SYSTEMML-654:
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Summary: DML Functions Should Override Builtin Functions
Key: SYSTEMML-654
URL: https://issues.apache.org/jira/browse/SYSTEMML-654
Project: SystemML
Issue Type: Sub-task
Reporter: Mike Dusenberry
Currently, if a user defines a DML-bodied function that has the same name as a
builtin function, an error will be returned. This occurs both if the function
is defined in the same file as it is being called (which could look like a
builtin function call, although the user does not wish it to be), or if the
function is defined in a separate file and called with a namespace notation.
As we grow the language with an increasing number of builtin functions, this is
not the desired behavior. Instead, any DML functions should override any
builtin functions.
Example 1:
{code}
min = function(int i) {
print("hi" + i)
}
tmp = min(1) # fail!
{code}
Example 2:
{code}
# util.dml
min = function(int i) {
print("hi" + i)
}
{code}
{code}
source("util.dml") as util
tmp = util::min(1) # fail!
{code}
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