Tim Armstrong created IMPALA-7679:
-------------------------------------
Summary: Improve error message and add test for creating table
with NULL column
Key: IMPALA-7679
URL: https://issues.apache.org/jira/browse/IMPALA-7679
Project: IMPALA
Issue Type: Improvement
Components: Frontend
Affects Versions: Impala 2.12.0
Reporter: Tim Armstrong
[~alanj_impala_5a78] reports that the error message was a little confusing here:
{noformat}
[localhost:21000] default> create table test_null_field as select null as
null_field;
Query: create table test_null_field as select null as null_field
Query submitted at: 2018-10-08 12:18:40 (Coordinator:
http://tarmstrong-box:25000)
ERROR: AnalysisException: Unsupported type 'null_type' in column 'null_field'
of table 'test_null_field'
CAUSED BY: TableLoadingException: Unsupported type 'null_type' in column
'null_field' of table 'test_null_field'
{noformat}
I grepped the code and it doesn't look like we actually have a targeted test,
so we should add the coverage too.
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