drill-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Victoria Markman (JIRA)" <j...@apache.org>
Subject [jira] [Created] (DRILL-2621) When view is created on top of parquet file, underlying data types should be automatically converted to SQL type
Date Mon, 30 Mar 2015 16:00:56 GMT
Victoria Markman created DRILL-2621:
---------------------------------------

             Summary: When view is created on top of parquet file, underlying data types should
be automatically converted to SQL type
                 Key: DRILL-2621
                 URL: https://issues.apache.org/jira/browse/DRILL-2621
             Project: Apache Drill
          Issue Type: New Feature
            Reporter: Victoria Markman


Since parquet types are known to us, we need to make sure to expose these types without making
user explicitly cast each column.

"create view v1 as select c_integer from j1; " produces view with column of ANY data type.

{code}
0: jdbc:drill:schema=dfs> describe v1;
+-------------+------------+-------------+
| COLUMN_NAME | DATA_TYPE  | IS_NULLABLE |
+-------------+------------+-------------+
| c_integer   | ANY        | YES         |
+-------------+------------+-------------+
1 row selected (0.091 seconds)
{code}

I think we need to expend "CREATE VIEW" document for GA explaining this fact. 



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)

Mime
View raw message