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Posted to issues@systemml.apache.org by "Matthias Boehm (JIRA)" <ji...@apache.org> on 2016/10/07 01:57:20 UTC
[jira] [Updated] (SYSTEMML-1018) Transformdecode creates wrong
schema for pass-through columns
[ https://issues.apache.org/jira/browse/SYSTEMML-1018?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Matthias Boehm updated SYSTEMML-1018:
-------------------------------------
Description: Transformdecode (matrix to frame conversion) currently always outputs a frame with pure string schema. This is memory-inefficient as all "pass-through" columns (i.e., columns without transform specification) can be encoded in double schema.
> Transformdecode creates wrong schema for pass-through columns
> -------------------------------------------------------------
>
> Key: SYSTEMML-1018
> URL: https://issues.apache.org/jira/browse/SYSTEMML-1018
> Project: SystemML
> Issue Type: Bug
> Reporter: Matthias Boehm
>
> Transformdecode (matrix to frame conversion) currently always outputs a frame with pure string schema. This is memory-inefficient as all "pass-through" columns (i.e., columns without transform specification) can be encoded in double schema.
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