hongbin ma created KYLIN-1865:
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Summary: segment auto merge based on calendar week, month and year
Key: KYLIN-1865
URL: https://issues.apache.org/jira/browse/KYLIN-1865
Project: Kylin
Issue Type: Improvement
Reporter: hongbin ma
Assignee: hongbin ma
Currently kylin allows users to specify some time ranges like (7days, 30days,
365days) to instruct auto merging daily segments. However, the design fails to
respect the boundary of calendar week/month/year, which is often useful for
real applications. For example, if a query only wants a month's data by
providing a filter like `date > 2010-01-01 and data < 2010-02-01`, with current
auto merging design we may end up with visiting two adjacent 30 days long
segments.
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