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https://issues.apache.org/jira/browse/DRILL-6423?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16478543#comment-16478543
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ASF GitHub Bot commented on DRILL-6423:
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kkhatua commented on issue #1266: DRILL-6423: Export query result as a CSV file
URL: https://github.com/apache/drill/pull/1266#issuecomment-389749566
@vdiravka
1. The maximum number of rows is dependent on the client machine resources.
This is a client side Javascript implementation, since the result set at the
point of rendering is already on the client. The DataTables library will hide
rows based on pagination, table length and filter conditions. The backend
Javascript simply traverses the visible rows and constructs an in-memory CSV
dataset, before prompting for it to be saved.
2. I haven't tried with the case of repeated values. As long as the result
can be rendered on the WebUI in a specific format, this will save it as a CSV
(with a delimiter specified by the user).
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> Export query result as a CSV file
> ---------------------------------
>
> Key: DRILL-6423
> URL: https://issues.apache.org/jira/browse/DRILL-6423
> Project: Apache Drill
> Issue Type: New Feature
> Components: Web Server
> Reporter: Kunal Khatua
> Assignee: Kunal Khatua
> Priority: Major
> Fix For: 1.14.0
>
>
> This feature request is based on a question posted in the user mailing list:
> [is there any way to download the data through Drill Web
> UI?|https://lists.apache.org/thread.html/bd6b2453c83d818b618ec6334891309f42556d4a7de34d84024a43cd@<user.drill.apache.org>]
> Since the results of the WebUI allows for sorting and filtering as well, it
> can be very useful if there is a way for a user to download the results of an
> executed query for further processing in other tools (like Excel)
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