We surely can make it bigger. However there is a sublte problem. I have ran into maximum column length limitations in the metastore with heavily nested columns. MySQL varchar maxes etc. You should open a jirra issues on issues.apache.org/jira/hive
Edward On Wed, Jul 11, 2012 at 5:10 PM, kulkarni.swar...@gmail.com <kulkarni.swar...@gmail.com> wrote: > Hello, > > I am not sure I understand the significance of separators very well in case > of structs. For instance, for deeply nested structs I usually hit this > exception: > > java.lang.ArrayIndexOutOfBoundsException: 9 > at > org.apache.hadoop.hive.serde2.lazy.LazyFactory.createLazyObjectInspector(LazyFactory.java:281) > at > org.apache.hadoop.hive.serde2.lazy.LazyFactory.createLazyObjectInspector(LazyFactory.java:263) > at > org.apache.hadoop.hive.serde2.lazy.LazyFactory.createLazyObjectInspector(LazyFactory.java:276) > at > org.apache.hadoop.hive.serde2.lazy.LazyFactory.createLazyObjectInspector(LazyFactory.java:263) > at > org.apache.hadoop.hive.serde2.lazy.LazyFactory.createLazyObjectInspector(LazyFactory.java:276) > at > org.apache.hadoop.hive.serde2.lazy.LazyFactory.createLazyObjectInspector(LazyFactory.java:263) > at > org.apache.hadoop.hive.serde2.lazy.LazyFactory.createLazyObjectInspector(LazyFactory.java:276) > at > org.apache.hadoop.hive.serde2.lazy.LazyFactory.createLazyObjectInspector(LazyFactory.java:263) > at > org.apache.hadoop.hive.serde2.lazy.LazyFactory.createLazyObjectInspector(LazyFactory.java:276) > at > org.apache.hadoop.hive.serde2.lazy.LazyFactory.createLazyStructInspector(LazyFactory.java:354) > > Digging deeper into the code I found that the size of separators have been > hard-coded to be an array of size "8" with a comment on it. > > // Read the separators: We use 8 levels of separators by default, but we > should change this when we allow users to specify more than 10 levels of > separators through DDL. > > serdeParams.separators = new byte[8]; > > > If someone can explain this to me, I would really appreciate that. Also is > there a way to change the number of separators so that this exception is not > thrown? > > Thanks, > > > -- > Swarnim
