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https://issues.apache.org/jira/browse/DRILL-6968?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16882034#comment-16882034
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benj commented on DRILL-6968:
-----------------------------
The _split_to_array_ is currently well defined as *split()* function (from
drill 1.7). Note that the internet documentation is not up to date (the split
function doesn't appears inhttps://drill.apache.org/docs/string-manipulation/).
But the book "Learning Apache Drill p.47 is well updated).
But for the _*split_to_table*_ I don't know how to return multiple row in an
UDF. Is it really possible now ?
> pattern matching and regexp facilities
> --------------------------------------
>
> Key: DRILL-6968
> URL: https://issues.apache.org/jira/browse/DRILL-6968
> Project: Apache Drill
> Issue Type: Wish
> Components: Functions - Drill
> Affects Versions: 1.15.0
> Reporter: benj
> Priority: Major
>
> Although it is possible to do some of them self, adding some possibilities
> from pattern matching directly in DRILL
> * may be usefull,
> * would prevent (re)write them and check again and again,
> * would allow a quicker and more effective handling of Drill.
> Some propositions :
> * adding possibilities to regexp_replace (ignoreCase,
> replaceAll(currently)/replaceOnlyFirst ...)
> * regexp_matches (lighter and more consistent than using regexp_replace
> trick)
> * split_to_table
> {noformat}
> SELECT split_to_table('Drill,baby,drill',',') AS mywords, 1 AS x;
> +---------+---+
> | mywords | x |
> +---------+---+
> | Drill | 1 |
> | baby | 1 |
> | drill | 1 |
> +---------+---+
> {noformat}
> * split_to_array
> {noformat}
> SELECT split_to_array('Drill,baby,drill',',') AS mywords, 1 AS x;
> +---------------------------+---+
> | mywords | x |
> +---------------------------+---+
> | ["Drill","baby","drill"] | 1 |
> +---------------------------+---+
> {noformat}
> * ...
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