Norris Lee created DRILL-1606:
---------------------------------
Summary: Issue with casting to integer from a CSV file
Key: DRILL-1606
URL: https://issues.apache.org/jira/browse/DRILL-1606
Project: Apache Drill
Issue Type: Bug
Components: Execution - Data Types
Reporter: Norris Lee
I have a CSV file with this data:
{code}
0: jdbc:drill:zk=localhost:5181> select columns[0], columns[1] from
`dfs.optdrill`.`touchstone/Integer_Table.csv`;
+------------+------------+
| EXPR$0 | EXPR$1 |
+------------+------------+
| Zero | 0 |
| One | 1 |
| MinusOne | -1 |
| Two | 2 |
| MaxTInt | 127 |
| MinTInt | -128 |
| MaxUTInt | 255 |
| MaxTIntP1 | 128 |
| MinTIntM1 | -129 |
| MaxUTIntP1 | 256 |
| MaxSInt | 32767 |
| MinSInt | -32768 |
| MaxUSInt | 65535 |
| MinSIntM1 | -32769 |
| MaxSIntP1 | 32768 |
| MaxUSIntP1 | 65536 |
| MaxInt | 2147483647 |
| MinInt | -2147483648 |
+------------+------------+
18 rows selected (0.099 seconds)
{code}
When I try to cast it to varchar and integer, it fails:
{code}
0: jdbc:drill:zk=localhost:5181> select cast(columns[0] as varchar(20)),
cast(columns[1] as integer) from `dfs.optdrill`.`touchstone/Integer_Table.csv`;
+------------+------------+
| EXPR$0 | EXPR$1 |
+------------+------------+
Query failed: Failure while running fragment.
java.lang.RuntimeException: java.sql.SQLException: Failure while executing
query.
at sqlline.SqlLine$IncrementalRows.hasNext(SqlLine.java:2514)
at sqlline.SqlLine$TableOutputFormat.print(SqlLine.java:2148)
at sqlline.SqlLine.print(SqlLine.java:1809)
at sqlline.SqlLine$Commands.execute(SqlLine.java:3766)
at sqlline.SqlLine$Commands.sql(SqlLine.java:3663)
at sqlline.SqlLine.dispatch(SqlLine.java:889)
at sqlline.SqlLine.begin(SqlLine.java:763)
at sqlline.SqlLine.start(SqlLine.java:498)
at sqlline.SqlLine.main(SqlLine.java:460)
{code}
Casting to varchar and varchar or varchar and bigint works perfectly fine.
Using the same data set in a parquet file works fine when casting to varchar
and integer as well.
{code}
0: jdbc:drill:zk=localhost:5181> select cast(keycolumn as varchar(20)),
cast(column1 as integer) from `dfs.optdrill`.`touchstone/integer.parquet`;
+------------+------------+
| EXPR$0 | EXPR$1 |
+------------+------------+
| Zero | 0 |
| One | 1 |
| MinusOne | -1 |
| Two | 2 |
| MaxTInt | 127 |
| MinTInt | -128 |
| MaxUTInt | 255 |
| MaxTIntP1 | 128 |
| MinTIntM1 | -129 |
| MaxUTIntP1 | 256 |
| MaxSInt | 32767 |
| MinSInt | -32768 |
| MaxUSInt | 65535 |
| MinSIntM1 | -32769 |
| MaxSIntP1 | 32768 |
| MaxUSIntP1 | 65536 |
| MaxInt | 2147483647 |
| MinInt | -2147483648 |
+------------+------------+
18 rows selected (0.067 seconds)
{code}
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