Github user kumarvishal09 commented on the issue:
https://github.com/apache/incubator-carbondata/pull/659
@watermen you can move all the schema related properties to some wrapper
class and in wrapper class implement hash code and equals based on dimension
column(including complex dimension) and measure column and and in segment index
store you can have a static hashmap for storing the table to list of segment
properties , this will solve alter table problem
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