Michael Ho 37a73ae9f7 IMPALA-3350: Add some missing StringVal.is_null checks ...

Impala has a hardcoded limit of 1GB in size for StringVal.
If the length of the string exceeds 1GB, Impala will simply
mark the StringVal as NULL (i.e. is_null = true). It's important
that string functions or built-in UDFs check this field before
accessing the pointer or Impala may end up doing null pointer
access, leading to crashes.

Change-Id: I55777487fff15a521818e39b4f93a8a242770ec2
Reviewed-on: http://gerrit.cloudera.org:8080/2786
Reviewed-by: Dan Hecht <dhecht@cloudera.com>
Tested-by: Internal Jenkins

2016-05-12 14:17:39 -07:00

2.8 KiB

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