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https://issues.apache.org/jira/browse/SOLR-9558?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15520840#comment-15520840
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Shalin Shekhar Mangar commented on SOLR-9558:
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So you want to transform the same column by multiple (different) templates to
create a multi-valued field with each value being the output of an individual
template?
> DIH TemplateTransformer does not support multiple values
> --------------------------------------------------------
>
> Key: SOLR-9558
> URL: https://issues.apache.org/jira/browse/SOLR-9558
> Project: Solr
> Issue Type: Bug
> Security Level: Public(Default Security Level. Issues are Public)
> Components: contrib - DataImportHandler
> Affects Versions: 6.2
> Reporter: Ted Sullivan
> Priority: Minor
> Fix For: trunk
>
> Attachments: SOLR-9558.patch
>
> Original Estimate: 24h
> Remaining Estimate: 24h
>
> The DIH TemplateTransformer does not support multiple templates with the same
> column name. Rather than creating a List of values as it should do in this
> case, the value of the last <field> tag with the same column name replaces
> the values of previous transforms for that column. The reason is that it uses
> a single HashMap to store the transformations with a key on column name. The
> fix is to detect if a column has previously been transformed within the same
> field set and to create a List<Object> for that column when this occurrs.
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