如何在不移动数据的情况下从另一个具有不同分区的配置单元表创建配置单元表？

Question

I have a table database1.table1

Table 'database1.table1' has 2 columns and one partition column: columnA, columnB partitioned by columnC

I need to create a table 'database2.table2' with no partition but with two columns columnA, columnB. I need to COPY the data from database1.table1 into database2.table2 (without deleting any data in database1.table1)

I tried the following but the data gets moved. I need to just copy the data

CREATE TABLE DATABASE2.TABLE2 
SELECT COLUMNA, COLUMNB
FROM DATABASE1.TABLE1

Note: I need the table with actual data and I can not create an EXTERNAL table.

Answer 1

You should be able to copy the data almost the way you were saying. Just add 'AS'. See the CREATE AS SELECT documentation . You're saying that the data is moved, but that can't be. CREATE AS SELECT will trigger a map reduce job. Notice in the docs that you can also change the data format, use a different serde, and your own partitioning (or no partitioning, like you're asking).

USE database2;
CREATE TABLE table2 
  AS SELECT columna,columnb 
  FROM database1.table1