Matthias Boehm created SYSTEMML-1337:
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Summary: Frame leftindexing with different schemas
Key: SYSTEMML-1337
URL: https://issues.apache.org/jira/browse/SYSTEMML-1337
Project: SystemML
Issue Type: Bug
Reporter: Matthias Boehm
Frame left indexing with different column schemas of lhs and rhs currently
fails as follows
{code}
Caused by: java.lang.ClassCastException:
org.apache.sysml.runtime.matrix.data.FrameBlock$DoubleArray cannot be cast to
org.apache.sysml.runtime.matrix.data.FrameBlock$StringArray
at
org.apache.sysml.runtime.matrix.data.FrameBlock$StringArray.set(FrameBlock.java:1209)
at
org.apache.sysml.runtime.matrix.data.FrameBlock$StringArray.set(FrameBlock.java:1206)
at
org.apache.sysml.runtime.matrix.data.FrameBlock.leftIndexingOperations(FrameBlock.java:760)
{code}
We should provide a fast path for common schemas (based on memcopy as done so
far) and a general path which requires object conversions.
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