[
https://issues.apache.org/jira/browse/IOTDB-751?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17183226#comment-17183226
]
Julian Feinauer commented on IOTDB-751:
---------------------------------------
[~hxd] thanks for pointing me. Excellent work so far [~suyurong]. I know the
system from Apache Drill and Apache Calcite reasonably well and also
implemented a custom one so I think some of your ideas are good but pretty
complicated to achieve. Especially 8 -> OverallRowRecordIterator and
RowRecordBatchIterator... I would, in an initial implementation leave it to the
an iterator and the user needs to work on it (in case of a UDTF also to return
a Record in each iteration). Regarding the CREATE and DROP functions, I dont
know if we need them as they are loaded by reflection so shouldnt we simply
stick to that for create and drop and potebntially only add User Access to
these functions?
> Support UDF
> -----------
>
> Key: IOTDB-751
> URL: https://issues.apache.org/jira/browse/IOTDB-751
> Project: Apache IoTDB
> Issue Type: New Feature
> Components: Core/Engine
> Reporter: Jialin Qiao
> Priority: Major
> Attachments: User Programming Interface.md
>
>
> For example, select abs(s1) from root
> select s1+s2 from root
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
