Hi Community!
Need a help!!
Was trying to create a carbon table with float field. I understand that
internally it stores float as double in its schema.
When we try to add an externa segment with float field, add segment/queries
on ext segment would not be successful due to datatype mismatch.
create table carbon_float(c1 float) stored as carbondata
desc formatted carbon_float
// hive table shows datatype as double.
desc carbon_float
// create another table with same schema
create table orc_float4(c1 float) using orc
insert into orc_float4 select 1
// Add external segment fails
alter table carbon_float4 add segment options('path'='xxx', 'format'='orc')
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Trying to understand the following things:
1. Any reason to make float to double the carbon ? Why not support both ?
2. Why do we change float to double and store in hive table catalog ?
Any help would be much appreciated.
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