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https://issues.apache.org/jira/browse/DRILL-7293?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16863789#comment-16863789
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ASF GitHub Bot commented on DRILL-7293:
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arina-ielchiieva commented on pull request #1807: DRILL-7293: Convert the regex
("log") plugin to use EVF
URL: https://github.com/apache/drill/pull/1807#discussion_r293691586
##########
File path:
exec/java-exec/src/main/java/org/apache/drill/exec/store/log/README.md
##########
@@ -143,6 +143,14 @@ cardinality.
You may find it helpful to specify the regex and column names via the plugin
config, types via the `CREATE SCHEMA` command.
+## Table Functions
+
+Log files come in many forms. It would be very convenient to use Drill table
Review comment:
Table function will work for all log format properties, except of list.
Knowing that list is not supported, does it makes sense to replace list schema
parameter with String and rename it to avoid clash with schema parameter for
schema provisioning.
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> Convert the regex ("log") plugin to use EVF
> -------------------------------------------
>
> Key: DRILL-7293
> URL: https://issues.apache.org/jira/browse/DRILL-7293
> Project: Apache Drill
> Issue Type: Improvement
> Affects Versions: 1.16.0
> Reporter: Paul Rogers
> Assignee: Paul Rogers
> Priority: Major
> Fix For: 1.17.0
>
>
> The "log" plugin (which uses a regex to define the row format) is the subject
> of Chapter 12 of the Learning Apache Drill book (though the version in the
> book is simpler than the one in the master branch.)
> The recently-completed "Enhanced Vector Framework" (EVF, AKA the "row set
> framework") gives Drill control over the size of batches created by readers,
> and allows readers to use the recently-added provided schema mechanism.
> We wish to use the log reader as an example for how to convert a Drill format
> plugin to use the EVF so that other developers can convert their own plugins.
> This PR provides the first set of log plugin changes to enable us to publish
> a tutorial on the EVF.
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