Re: [DISCUSSION]Support for Geospatial indexing

Posted by VenuReddy on
URL: http://apache-carbondata-dev-mailing-list-archive.168.s1.nabble.com/DISCUSSION-Support-for-Geospatial-indexing-tp85268p87443.html

@xuchuanyin
With this new property, we can create a non-schema column internally and can
generate the customized value to it upon each row add from the existing
schema columns values(i.e., from source column values). Note that source
columns are specified with property.
             Since the intent of this column creation was to use it as sort
column too, we can implicitly add it to existing configured sort column
list. During the table creation, we can append to the existing sort column
list. And, if we want to change the order of sort columns, we can use
existing alter table set table properties for sort columns.

The way sorting of data happens is still same as present except the fact
that it considers another non-schema column also into account during sort.



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