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Posted to issues@orc.apache.org by "qingbo jiao (Jira)" <ji...@apache.org> on 2021/10/12 09:54:00 UTC
[jira] [Updated] (ORC-1026) when write string type column,need to traversing the dictionary when flushDictionary method is called,Is there anyway to remove this travesing
[ https://issues.apache.org/jira/browse/ORC-1026?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
qingbo jiao updated ORC-1026:
-----------------------------
Summary: when write string type column,need to traversing the dictionary when flushDictionary method is called,Is there anyway to remove this travesing (was: when write string type column,there is no need to traversing the dictionary when flushDictionary method is called)
> when write string type column,need to traversing the dictionary when flushDictionary method is called,Is there anyway to remove this travesing
> ----------------------------------------------------------------------------------------------------------------------------------------------
>
> Key: ORC-1026
> URL: https://issues.apache.org/jira/browse/ORC-1026
> Project: ORC
> Issue Type: Bug
> Components: Java
> Affects Versions: 1.8.0
> Reporter: qingbo jiao
> Priority: Major
>
> In the StringBaseTreeWriter.class when called flushDictionary() method,where traversing the dictionary as show below
> {code:java}
> dictionary.visit(new Dictionary.Visitor() {
> private int currentId = 0;
> @Override
> public void visit(Dictionary.VisitorContext context
> ) throws IOException {
> context.writeBytes(stringOutput);
> lengthOutput.write(context.getLength());
> dumpOrder[context.getOriginalPosition()] = currentId++;
> }
> });
> {code}
> I think this is not needed
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