[jira] [Commented] (KYLIN-849) Couldn't query metrics on lookup table PK

["Shaofeng SHI (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/KYLIN-849?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14598756#comment-14598756 ] 

Shaofeng SHI commented on KYLIN-849:
------------------------------------

This is a bug; The lookup table's PK can be derived from fact table's FK, which is on the cube dimension columns in this case, so Kylin should be capabile to fulfill this query; It has been fixed and committed in 0.7-staging and 0.8 branches;

> Couldn't query metrics on lookup table PK
> -----------------------------------------
>
>                 Key: KYLIN-849
>                 URL: https://issues.apache.org/jira/browse/KYLIN-849
>             Project: Kylin
>          Issue Type: Bug
>          Components: Query Engine
>    Affects Versions: v0.7.1
>            Reporter: Shaofeng SHI
>            Assignee: Shaofeng SHI
>             Fix For: v0.7.2
>
>
> When running such a SQL, kylin will throw error "Can't find any realization. Please confirm with providers. SQL digest: fact table DEFAULT.TEST_KYLIN_FACT,group by [],filter on [],with aggregates[FunctionDesc [expression=MIN, parameter=ParameterDesc [type=column, value=CAL_DT], returnType=null], FunctionDesc [expression=MAX, parameter=ParameterDesc [type=column, value=CAL_DT], returnType=null]]":
> {code} 
> SELECT 
>  min(test_cal_dt.cal_dt) as mmin
>  ,max(test_cal_dt.cal_dt) as mmax
>  FROM test_kylin_fact 
>  inner JOIN edw.test_cal_dt as test_cal_dt 
>  ON test_kylin_fact.cal_dt = test_cal_dt.cal_dt 
>  inner JOIN test_category_groupings 
>  ON test_kylin_fact.leaf_categ_id = test_category_groupings.leaf_categ_id 
>  AND test_kylin_fact.lstg_site_id = test_category_groupings.site_id 
> {code}



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