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https://issues.apache.org/jira/browse/KYLIN-3283?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Billy Liu updated KYLIN-3283:
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Fix Version/s: v2.4.0
> Support values RelNode
> ----------------------
>
> Key: KYLIN-3283
> URL: https://issues.apache.org/jira/browse/KYLIN-3283
> Project: Kylin
> Issue Type: New Feature
> Components: Query Engine
> Affects Versions: v2.3.0
> Reporter: yiming.xu
> Assignee: yiming.xu
> Priority: Major
> Fix For: v2.4.0
>
>
> for queries like:
> select leaf_categ_id, sum(price) as sum_price from test_kylin_fact group by
> leaf_categ_id
> union all
> select 1 as leaf_categ_id2, 2 as sum_price2
> the expected logical plan after volcano is:
> {code:java}
> OLAPToEnumerableConverter
> OLAPLimitRel(ctx=[], fetch=[50000])
> OLAPUnionRel(all=[true], ctx=[], all=[true])
> OLAPAggregateRel(group=[{0}], SUM_PRICE=[SUM($1)], ctx=[])
> OLAPProjectRel(LEAF_CATEG_ID=[$4], PRICE=[$8], ctx=[])
> OLAPTableScan(table=[[DEFAULT, TEST_KYLIN_FACT]], ctx=[],
> fields=[[0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18,
> 19, 20, 21, 22, 23, 24, 25, 26]])
> OLAPProjectRel(LEAF_CATEG_ID2=[1], SUM_PRICE2=[2], ctx=[])
> OLAPValuesRel(type=[RecordType(INTEGER ZERO)], tuples=[[{ 0 }]])
> {code}
> however the actual is:
> {code:java}
> EnumerableLimit(fetch=[50000])
> EnumerableUnion(all=[true])
> OLAPToEnumerableConverter
> OLAPAggregateRel(group=[{0}], SUM_PRICE=[SUM($1)], ctx=[])
> OLAPProjectRel(LEAF_CATEG_ID=[$4], PRICE=[$8], ctx=[])
> OLAPTableScan(table=[[DEFAULT, TEST_KYLIN_FACT]], ctx=[],
> fields=[[0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18,
> 19, 20, 21, 22, 23, 24, 25, 26]])
> EnumerableCalc(expr#0=[{inputs}], expr#1=[1], expr#2=[2],
> LEAF_CATEG_ID2=[$t1], SUM_PRICE2=[$t2])
> EnumerableValues(type=[RecordType(INTEGER ZERO)], tuples=[[{ 0 }]])
> {code}
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