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https://issues.apache.org/jira/browse/SOLR-8113?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14940413#comment-14940413
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Gus Heck edited comment on SOLR-8113 at 10/2/15 2:58 AM:
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This was motivated by the response to SOLR-8109. This bridges the gap in the
suggested alternate solution, but does look like it will likely be a lot less
performant. I couldn't find a way to re-use the match done by the
FieldNameSelector, so the regex matches have to execute twice. All attempts I
made to do that resulted in major API changes.
This is however more flexible, will not interfere with atomic updates (as
copyField apparently does) and Allows further movement away from the use of
copyField.
It would be nice if both this and SOLR-8109 to become available since speed is
one tradeoff, and atomic update support etc is another.
was (Author: gus_heck):
This was motivated by the response to SOLR-8109. This bridges the gap in the
suggested alternate solution, but does look like it will likely be a lot less
performant. I couldn't find a way to re-use the match done by the
FieldNameSelector, so the regex matches have to execute twice. All attempts I
made to do that resulted in major API changes.
This is however more flexible, will not interfere with atomic updates (as
copyField apparently does) and Allows further movement away from the use of
copyField.
My preference would be for both this and SOLR-8109 to become available since
speed is one tradeoff, and atomic update support etc is another.
> Accept replacement strings in CloneFieldUpdateProcessorFactory
> --------------------------------------------------------------
>
> Key: SOLR-8113
> URL: https://issues.apache.org/jira/browse/SOLR-8113
> Project: Solr
> Issue Type: Improvement
> Components: update
> Affects Versions: 5.3
> Reporter: Gus Heck
> Attachments: SOLR-8113.patch
>
>
> Presently CloneFieldUpdateProcessorFactory accepts regular expressions to
> select source fields, which mirrors wildcards in the source for copyField in
> the schema. This patch adds a counterpart to copyField's wildcards in the
> dest attribute by interpreting the dest parameter as a regex replacement
> string.
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