[SYSTEMDS-3165] Binary frame write loses column names

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: SystemDS 2.2
• Assignee: Matthias Boehm
• Reporter: Matthias Boehm
• Created: 14/Oct/21 17:52
• Updated: 14/Oct/21 18:51
• Resolved: 14/Oct/21 18:51

Description

Reading a frame after binary write causes transform apply issues, if the spec refers to column names because the column names are lost during write/read.

Caused by: org.apache.sysds.runtime.DMLRuntimeException: Column name not found in meta data: zipcode (meta: [C1, C2, C3, C4, C5, C6, C7, C8, C9])
	at org.apache.sysds.runtime.transform.encode.EncoderFactory.createEncoder(EncoderFactory.java:159)
	... 11 more