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Posted to issues@carbondata.apache.org by "xubo245 (JIRA)" <ji...@apache.org> on 2018/02/08 02:13:00 UTC

[jira] [Created] (CARBONDATA-2144) Optimize pre-aggregate documentation

xubo245 created CARBONDATA-2144:
-----------------------------------

             Summary: Optimize pre-aggregate documentation
                 Key: CARBONDATA-2144
                 URL: https://issues.apache.org/jira/browse/CARBONDATA-2144
             Project: CarbonData
          Issue Type: Improvement
          Components: docs
            Reporter: xubo245
            Assignee: xubo245


Optimize pre-aggregate documentation:

* add blank space
* upper case

like:

Carbondata supports pre aggregating of data so that OLAP kind of queries can fetch data much faster.Aggregate tables are created as datamaps so that the handling is as efficient as other indexing support.Users can create as many aggregate tables they require as datamaps to improve their query performance,provided the storage requirements and loading speeds are acceptable.

For main table called sales which is defined as

CREATE TABLE sales (
order_time timestamp,
user_id string,
sex string,
country string,
quantity int,
price bigint)
STORED BY 'carbondata')

need to 



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