[
https://issues.apache.org/jira/browse/KYLIN-1427?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15156623#comment-15156623
]
Hao Chen commented on KYLIN-1427:
---------------------------------
h2. Changes
- Support multiple columns separated with "," instead of hierarchy json for
being compatible with older version of metadata.
- Extend
"org.apache.kylin.metadata.model.PartitionDesc$DefaultPartitionConditionBuilder"
to support multiple partition columns
h2. Sample
{code}
{
"partition_desc": {
"partition_date_column":
"DEFAULT.TEST_KYLIN_FACT.CAL_DT,DEFAULT.TEST_KYLIN_FACT.CAL_HOUR,TEST_KYLIN_FACT.CAL_MINUTE
",
"partition_date_start": 0,
"partition_date_format": "yyyy-MM-dd,hh,mm",
"partition_type": "APPEND",
"partition_condition_builder":
"org.apache.kylin.metadata.model.PartitionDesc$DefaultPartitionConditionBuilder"
}
}
{code}
h2. Partition SQL Condition
{code}
WHERE (TEST_KYLIN_FACT.CAL_DT >= "2016-02-21" AND TEST_KYLIN_FACT.CAL_DT <
"2016-02-22") AND (TEST_KYLIN_FACT.CAL_HOUR >= "12" AND
TEST_KYLIN_FACT.CAL_HOUR < "13") AND (TEST_KYLIN_FACT.CAL_MINUTE >= "0" AND
TEST_KYLIN_FACT.CAL_MINUTE < "30")
{code}
> Enable partition date column to support date and hour as separate columns for
> increment cube build
> ---------------------------------------------------------------------------------------------------
>
> Key: KYLIN-1427
> URL: https://issues.apache.org/jira/browse/KYLIN-1427
> Project: Kylin
> Issue Type: Task
> Components: Metadata, REST Service, Web
> Reporter: qianqiaoneng
> Assignee: Hao Chen
>
> There are some data table, which save date and hour at 2 columns. For this
> kind of source data, kylin currently doesn't support incrementally build the
> cube. Open this JIRA to track this feature.
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