Victoria Markman created DRILL-2053:
---------------------------------------
Summary: Column names are case sensitive if column is coming from
WITH clause
Key: DRILL-2053
URL: https://issues.apache.org/jira/browse/DRILL-2053
Project: Apache Drill
Issue Type: Bug
Components: Query Planning & Optimization
Affects Versions: 0.8.0
Reporter: Victoria Markman
Assignee: Jinfeng Ni
test.json
{code}
{"customerid":100,"customername":"AAA"}
{"customerid":101,"customername":"BBB"}
{"customerid":102,"customername":"CCC"}
{code}
Wrong result:
{code}
0: jdbc:drill:schema=dfs> with a as ( select * from `test.json` ) select * from
a, `test.json` b where a.CUSTOMERID = b.CUSTOMERID;
+------------+--------------+-------------+---------------+
| customerid | customername | customerid0 | customername0 |
+------------+--------------+-------------+---------------+
+------------+--------------+-------------+---------------+
No rows selected (0.202 seconds)
{code}
Correct result, when column name matches the case of the column name in the
json file:
{code}
0: jdbc:drill:schema=dfs> with a as ( select * from `test.json` ) select * from
a, `test.json` b where a.customerid = b.customerid;
+------------+--------------+-------------+---------------+
| customerid | customername | customerid0 | customername0 |
+------------+--------------+-------------+---------------+
| 100 | AAA | 100 | AAA |
| 101 | BBB | 101 | BBB |
| 102 | CCC | 102 | CCC |
+------------+--------------+-------------+---------------+
3 rows selected (0.204 seconds)
{code}
Correct result when column does not match case, but is coming directly from the
table:
{code}
0: jdbc:drill:schema=dfs> with a as ( select * from `test.json` ) select * from
a, `test.json` b where a.customerid = b.customerID;
+------------+--------------+-------------+---------------+
| customerid | customername | customerid0 | customername0 |
+------------+--------------+-------------+---------------+
| 100 | AAA | 100 | AAA |
| 101 | BBB | 101 | BBB |
| 102 | CCC | 102 | CCC |
+------------+--------------+-------------+---------------+
3 rows selected (0.197 seconds)
{code}
If you change case of a column name that comes from subquery (WITH clause),
this is where it goes all wrong:
{code}
0: jdbc:drill:schema=dfs> with a as ( select * from `test.json` ) select * from
a, `test.json` b where a.Customerid = b.customerid;
+------------+--------------+-------------+---------------+
| customerid | customername | customerid0 | customername0 |
+------------+--------------+-------------+---------------+
+------------+--------------+-------------+---------------+
No rows selected (0.186 seconds)
{code}
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