[jira] [Resolved] (CALCITE-1227) Add streaming CSV table

["Julian Hyde (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/CALCITE-1227?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Julian Hyde resolved CALCITE-1227.
----------------------------------
       Resolution: Fixed
    Fix Version/s: 1.9.0

Fixed in http://git-wip-us.apache.org/repos/asf/calcite/commit/65c1cec2.

> Add streaming CSV table
> -----------------------
>
>                 Key: CALCITE-1227
>                 URL: https://issues.apache.org/jira/browse/CALCITE-1227
>             Project: Calcite
>          Issue Type: Bug
>            Reporter: Julian Hyde
>            Assignee: Julian Hyde
>             Fix For: 1.9.0
>
>
> Add a variant of CsvTable that can be streamed. It would serve as an example of how to write stream adapters.
> It would be like the CSV adapter, but watches a file and reports records added to the end of the file (like the tail command). 
> You’d have to change {{CsvTable}} to implement {{StreamableTable}}, and implement the {{Table stream()}} method to return a variant of the table that is in “follow” mode.
> It would probably be implemented by a variant of CsvEnumerator, but it is getting its input in bursts, as the file is appended to.
> You would still be able to use this adapter to read historical data from the CSV file. Appending records to the file would make a nice demo.



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)