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Apache Kylin

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Apache Kylin : Analytical Data Warehouse for Big Data

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For example, there's a column which have high cardinality called seller_id and our application scenario will filter according to this column. There're some sample SQLs:

Code Block
select count(*) from kylin_sales left join kylin_order where seller_id = '10000233'
select count(*) from kylin_sales left join kylin_order where SELLER_ID in (10000233,10000234,10000235)
select count(*) from kylin_sales left join kylin_order where SELLER_ID is NULL
select count(*) from kylin_sales left join kylin_order where SELLER_ID in (10000233,10000234,10000235) and SELLER_ID = 10000233 
select count(*) from kylin_sales left join kylin_order where SELLER_ID = 10000233 or SELLER_ID = 1

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