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Posted to dev@drill.apache.org by "Sudheesh Katkam (JIRA)" <ji...@apache.org> on 2015/04/15 21:11:59 UTC
[jira] [Created] (DRILL-2801) ORDER BY produces extra records
Sudheesh Katkam created DRILL-2801:
--------------------------------------
Summary: ORDER BY produces extra records
Key: DRILL-2801
URL: https://issues.apache.org/jira/browse/DRILL-2801
Project: Apache Drill
Issue Type: Bug
Components: Execution - Relational Operators
Affects Versions: 0.8.0
Reporter: Sudheesh Katkam
Assignee: Chris Westin
Priority: Critical
Attachments: data.csv
Running in embedded mode on my mac.
{code}
$ wc -w data.csv
50000 data.csv
{code}
Here's the query:
{code}
0: jdbc:drill:zk=local> SELECT count(*) FROM dfs.`data.csv`;
+------------+
| EXPR$0 |
+------------+
| 50000 |
+------------+
1 row selected (0.223 seconds)
0: jdbc:drill:zk=local> SELECT columns[0] FROM dfs.`data.csv` ORDER BY columns[0];
+------------+
| EXPR$0 |
+------------+
...
| 6 |
+------------+
50,001 rows selected (0.928 seconds)
0: jdbc:drill:zk=local> SELECT tab.col, COUNT(tab.col) FROM (SELECT columns[0] col FROM dfs.`data.csv` ORDER BY columns[0]) tab GROUP BY tab.col;
+------------+------------+
| col | EXPR$1 |
+------------+------------+
| 2 | 10000 |
| 3 | 10000 |
| 4 | 10000 |
| 5 | 10001 |
| 6 | 10000 |
+------------+------------+
5 rows selected (0.704 seconds)
{code}
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