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Posted to issues@drill.apache.org by "Paul Rogers (JIRA)" <ji...@apache.org> on 2017/07/17 23:09:00 UTC
[jira] [Assigned] (DRILL-5674) Reading CSV file though table()
function does not handle compression
[ https://issues.apache.org/jira/browse/DRILL-5674?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Paul Rogers reassigned DRILL-5674:
----------------------------------
Assignee: Paul Rogers
> Reading CSV file though table() function does not handle compression
> --------------------------------------------------------------------
>
> Key: DRILL-5674
> URL: https://issues.apache.org/jira/browse/DRILL-5674
> Project: Apache Drill
> Issue Type: Bug
> Affects Versions: 1.10.0
> Reporter: Paul Rogers
> Assignee: Paul Rogers
>
> Create a compressed CSV file with column headers: data.csv.zip.
> Define a storage plugin config for the file, call it "dfs.myws", set delimiter = ",", extract header = true, skip header = false.
> Run a simple query:
> SELECT * FROM dfs.myws.`data.csv.zip`
> This works fine.
> Now, do the same thing, but using a table function:
> {code}
> SELECT * FROM table(dfs.myws.`data.csv.zip` (type => 'text', fieldDelimiter => ',' , extractHeader => true))
> {code}
> This does not work. Apparently, the reader tries to read the zip file as if it were an uncompressed file:
> {code}
> DATA_READ ERROR: Drill failed to read your text file. Drill supports up to 65536 columns in a text file. Your file appears to have more than that.
> Failure while reading file file:/Users/fred/data/data.csv.zip. Happened at or shortly before byte position 121177.
> {code}
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