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From sounakr <...@git.apache.org>
Subject [GitHub] incubator-carbondata issue #723: [CARBONDATA-845] Insert Select Into Same Ta...
Date Tue, 04 Apr 2017 11:25:46 GMT
Github user sounakr commented on the issue:

    https://github.com/apache/incubator-carbondata/pull/723
  
    @ravipesala Insert Select from same table is allowed both in Hive and Parquet. Spark-5746
introduced this  behavior as they are deleting the source table data first before inserting
when overwrite is turned ON. But for carbon insert select Overwrite is always false and as
other data sources are allowing insert select into same table it is good to have. Also the
below kind of queries will help to load data. 
    insert into tab1 sel a *4, b*4 from tab1;



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