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Posted to dev@carbondata.apache.org by xuchuanyin <xu...@hust.edu.cn> on 2018/11/12 14:02:01 UTC

RE: [Feature Proposal] Proposal for offline and DDL localdictionary support

Does local dictionary harm the performance so that they want to disable it for some specific columns?

Sent from laptop

From: xubo245
Sent: Monday, November 12, 2018 10:05 AM
To: dev@carbondata.apache.org
Subject: Re: [Feature Proposal] Proposal for offline and DDL localdictionary support

SDK has supported local dictionary:
org.apache.carbondata.sdk.file.CarbonWriterBuilder#localDictionaryThreshold
org.apache.carbondata.sdk.file.CarbonWriterBuilder#enableLocalDictionary

But don't support LOCAL_DICTIONARY_INCLUDE and LOCAL_DICTIONARY_EXCLUDE. 
I think we should support it.  There are some users want to use
LOCAL_DICTIONARY_EXCLUDE.

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