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https://issues.apache.org/jira/browse/MADLIB-1207?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16370843#comment-16370843
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Rahul Iyer commented on MADLIB-1207:
------------------------------------
Problem occurs on two statements:
Line 752:
{code}
grouping_col = '' if summary['grouping_col']=='NULL' \
else summary['grouping_col']
{code}
which assumes that a {{grouping_col}} exists in the summary table, but v1.12
didn't have grouping.
Line 778:
{code} _validate_standardization_table(standardization_table,
grouping_col_list) {code}
which assumes that standardization table is created, but that feature was
added in v1.13.
> Neural net models trained in 1.12 don’t predict in 1.13
> -------------------------------------------------------
>
> Key: MADLIB-1207
> URL: https://issues.apache.org/jira/browse/MADLIB-1207
> Project: Apache MADlib
> Issue Type: Bug
> Components: Module: Neural Networks
> Reporter: Frank McQuillan
> Priority: Minor
> Fix For: v1.14
>
>
> This is a bug related to when we added grouping support in 1.13 and did not
> properly account for it in the predict function.
> The grouping column should be optional in the predict function to support
> 1.12 models.
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