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https://issues.apache.org/jira/browse/MADLIB-984?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Frank McQuillan updated MADLIB-984:
-----------------------------------
Description:
The UDF to be implemented will obtain the matching indices in `sym_str`, which
is in turn used to filter `{match_to_row_id}` for matched rows.
This implementations pipeline operations directly in `{matched_partitions}`
and remove the need of creating and joining two extra tables/views
`{length_of_matches}` and `{length_of_between_matches}`.
Boost.Regex can be helpful for implementing the proposed UDF:
http://www.boost.org/doc/libs/1_60_0/libs/regex/doc/html/boost_regex/ref/regex_match.html
was:
The UDF to be implemented will obtain the matching indices in `sym_str`, which
is in turn used to filter `{match_to_row_id}` for matched rows.
This implementations pipeline operations directly in `{matched_partitions}` and
remove the need of creating and joining two extra tables/views
`{length_of_matches}` and `{length_of_between_matches}`.
Boost.Regex can be helpful for implementing the proposed UDF:
http://www.boost.org/doc/libs/1_60_0/libs/regex/doc/html/boost_regex/ref/regex_match.html
> Path - refactor regex pattern match into cpp
> --------------------------------------------
>
> Key: MADLIB-984
> URL: https://issues.apache.org/jira/browse/MADLIB-984
> Project: Apache MADlib
> Issue Type: New Feature
> Components: Module: Utilities
> Reporter: Frank McQuillan
> Assignee: Xiaocheng Tang
> Fix For: v1.9.1
>
>
> The UDF to be implemented will obtain the matching indices in `sym_str`,
> which is in turn used to filter `{match_to_row_id}` for matched rows.
> This implementations pipeline operations directly in `{matched_partitions}`
> and remove the need of creating and joining two extra tables/views
> `{length_of_matches}` and `{length_of_between_matches}`.
> Boost.Regex can be helpful for implementing the proposed UDF:
> http://www.boost.org/doc/libs/1_60_0/libs/regex/doc/html/boost_regex/ref/regex_match.html
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