hadoop - Apache Hive: Transferring data from existing table to another table -


i have multiple existing tables stored in hdfs. create new tables existing external tables can bucket, sort, , compress data.

what proper way create table existing table? export existing table csv, create new table , import seems there should way import data directly existing table haven't found in documentation or via google.

for existing table named: source , newly created table named: target fields: a,b,c,d

reading entries source , writing target:

insert overwrite table target select distinct a,b,c,d source;

this works both internal , external tables.


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