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https://issues.apache.org/jira/browse/KYLIN-2679?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16064089#comment-16064089
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Shaofeng SHI commented on KYLIN-2679:
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The problem Sonny faced is, when he defines to use normal dict for the
dimension, and GD for bitmap, Kylin uses the GD to do dimension encoding. It
seems Kylin only allows one dict for one column (didn't differenciate normal
dict and GD).
> Report error when a dimension using "dict" encoding and also configured
> Global dictionary for "distinct_count" measure
> ----------------------------------------------------------------------------------------------------------------------
>
> Key: KYLIN-2679
> URL: https://issues.apache.org/jira/browse/KYLIN-2679
> Project: Kylin
> Issue Type: Bug
> Components: Metadata, Query Engine
> Reporter: Shaofeng SHI
>
> This is a problem reported by community user Sonny Heer:
> After finally getting the global dictionary to work with building the cube
> there are now exceptions during query.
> ERROR in query: "AppendTrieDictionary can't retrive value from id"
> The cube has a UHC dimension, which also appeared in a count distinct
> measure. Then a global dictionary is created for it, but Global dictionary
> doesn't support decoding, then there is such an error during query time.
> While this wasn't even checked when the cube is created.
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