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https://issues.apache.org/jira/browse/DRILL-7343?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16908171#comment-16908171
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ASF GitHub Bot commented on DRILL-7343:
---------------------------------------
arina-ielchiieva commented on pull request #1840: DRILL-7343: Add User-Agent
UDFs to Drill
URL: https://github.com/apache/drill/pull/1840#discussion_r314353528
##########
File path: contrib/udfs/README.md
##########
@@ -0,0 +1,56 @@
+# Drill User Defined Functions
+
+This `README` documents functions which users have submitted to Apaceh Drill.
+
+## User Agent Functions
+Drill UDF for parsing User Agent Strings.
+This function is based on Niels Basjes Java library for parsing user agent
strings which is available here: https://github.com/nielsbasjes/yauaa.
+
+### Usage
+Using this function is fairly simple. The function `parse_user_agent()` takes
a user agent string as an argument and returns a map of the available fields.
Note that not every field will be present in every user agent string.
Review comment:
```suggestion
The function `parse_user_agent()` takes a user agent string as an argument
and returns a map of the available fields. Note that not every field will be
present in every user agent string.
```
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> Add User-Agent UDFs to Drill
> ----------------------------
>
> Key: DRILL-7343
> URL: https://issues.apache.org/jira/browse/DRILL-7343
> Project: Apache Drill
> Issue Type: New Feature
> Affects Versions: 1.17.0
> Reporter: Charles Givre
> Assignee: Charles Givre
> Priority: Major
> Fix For: 1.17.0
>
>
> This collection of UDFs adds the ability to parse user agent strings which is
> useful for security data analysis.
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