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https://issues.apache.org/jira/browse/CARBONDATA-641?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15823733#comment-15823733
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Mohammad Shahid Khan commented on CARBONDATA-641:
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date and timestamp type are direct dictionary column, so automatically no
dictionary file will be generated for the same.
Therefor DATE and TIMESTAMP both should not be supported in DICTIONARY_EXCLUDE
option.
Input validation for the timestamp type is missing i.e. its not throwing error
for the same.
Solution:
Validation should be added for the timestamp type as well.
After fix both the adding both type date and timestamp in DICTIONARY_EXCLUDE
will throw error.
> DICTIONARY_EXCLUDE is not working with 'DATE' column
> ----------------------------------------------------
>
> Key: CARBONDATA-641
> URL: https://issues.apache.org/jira/browse/CARBONDATA-641
> Project: CarbonData
> Issue Type: Bug
> Components: core
> Affects Versions: 1.0.0-incubating
> Environment: Spark - 1.6 and Spark - 2.1
> Reporter: Anurag Srivastava
>
> I am trying to create a table with *"DICTIONARY_EXCLUDE"* and this property
> is not working for *"DATE"* Data Type.
> *Query :* CREATE TABLE uniqdata_date_dictionary (CUST_ID int,CUST_NAME
> string,ACTIVE_EMUI_VERSION string, DOB date, DOJ date, BIGINT_COLUMN1
> bigint,BIGINT_COLUMN2 bigint,DECIMAL_COLUMN1 decimal(30,10), DECIMAL_COLUMN2
> decimal(36,10),Double_COLUMN1 double, Double_COLUMN2 double,INTEGER_COLUMN1
> int) STORED BY 'org.apache.carbondata.format' TBLPROPERTIES
> ("TABLE_BLOCKSIZE"= "256 MB","DICTIONARY_EXCLUDE"="DOB,DOJ");
> *Expected Result :* Table created.
> *Actual Result :* Error:
> org.apache.carbondata.spark.exception.MalformedCarbonCommandException:
> DICTIONARY_EXCLUDE is unsupported for date data type column: dob
> (state=,code=0)
> But is is working fine, If I use 'TIMESTAMP' in place of 'DATE'.
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