For a tab separated file, I think it is the null string ... i.e no characters. So, for example
12\ta\t\t2 1\tb\ta\t1 reads 12 a <NULL> 2 1 b a 1 On Fri, Jan 21, 2011 at 1:09 AM, lei liu <liulei...@gmail.com> wrote: > I generate HDFS file , then I load the file to one hive table. There are > some colums are don't have value, I need to set these colums to NULL. I > want to know what char represents NULL value in hive. > > > Thanks, > > LiuLei > > >
