[MADLIB-984] Path - refactor regex pattern match into cpp

• Type: New Feature
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: v1.9.1
• Component/s: Module: Utilities
• Epic Link: unlabelled-MADLIB-977
• Assignee: Xiaocheng Tang
• Reporter: Frank McQuillan
• Created: 29/Mar/16 17:20
• Updated: 29/Jul/16 19:57
• Resolved: 29/Jul/16 19:57

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