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Posted to commits@druid.apache.org by GitBox <gi...@apache.org> on 2021/09/03 13:35:21 UTC
[GitHub] [druid] Brimborion opened a new issue #11656: Issue with numerical properties using Avatica JDBC driver
Brimborion opened a new issue #11656:
URL: https://github.com/apache/druid/issues/11656
### Affected Version
Druid 0.21.1
Avatica 1.18.0
### Description
When I send a query via JDBC driver with a numerical property (eg. numParallelCombineThreads), I get a ClassCastException.
This is an example of how I send the query with context property :
```
val properties = new Properties()
properties.setProperty("numParallelCombineThreads", "4")
val connection = DriverManager.getConnection(url, properties)
val statement = connection.createStatement()
val resultSet = statement.executeQuery(query)
```
and the response I get
```
Exception in thread "main" org.apache.calcite.avatica.AvaticaSqlException: Error -1 (00000) : Error while executing SQL "select caseid from "2a03cee0-2511-4ee2-b2e9-0068527fc437" group by caseid": Remote driver error: RuntimeException: java.util.concurrent.ExecutionException: java.lang.ClassCastException: java.lang.String cannot be cast to java.lang.Integer
```
I also tried with put method, but I get the same error
```
properties.put("numParallelCombineThreads", 4)
```
Requests with string and boolean properties are processed successfully, the problem arise only with numerical values.
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[GitHub] [druid] FrankChen021 commented on issue #11656: Issue with numerical properties using Avatica JDBC driver
Posted by GitBox <gi...@apache.org>.
FrankChen021 commented on issue #11656:
URL: https://github.com/apache/druid/issues/11656#issuecomment-977878989
@Brimborion Could you re-produce this problem and check the log of router or broker to see what's the exception stack trace?
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