Xiu Guo 2013-10-23, 23:53
-Re: Data file and table def different number of columns
Stephen Sprague 2013-10-24, 00:58
yeah. that works as expected. the schema drives the column list in the
select statement (not the hdfs file.)
you'd have nulls if your schema had *more* columns than the hdfs file had
On Wed, Oct 23, 2013 at 4:53 PM, Xiu Guo <[EMAIL PROTECTED]> wrote:
> We have a table called employee.dat with below contents:
> then in Hive, query:
> create table myTbl (a INT, b STRING)
> ROW FORMAT DELIMITED
> FIELDS TERMINATED BY ','
> LINES TERMINATED BY '\n'
> TBLPROPERTIES ("serialization.null.format"="\\N");
> LOAD DATA LOCAL INPATH "/.../employee.dat" overwrite into table myTbl;
> when do:
> select * from myTbl;
> the result is:
> 1 ryan
> 2 michael
> Is this correct? One of my teammate says if the dat file and table def has
> different number of columns, NULL values should be in the table.
> Can someone please confirm which one is expected behavior?
Xiu Guo 2013-10-24, 21:53