ClickHouse / ClickHouse/clickhouse-java
[jdbc-v2] [output format] SQL Error [HY000]: Only RowBinaryWithNameAndTypes is supported for output format. Please check your query.
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Beschreibung
## Description
Migrating from clickhouse jdbc driver 0.6.5 to clickhouse jdbc v2 driver 0.9.6, some queries stopped working.
### Steps to reproduce
1. `SELECT 1 as x FORMAT JSON`
### Error Log or Exception StackTrace
```
Exception in thread "main" java.sql.SQLException: Only RowBinaryWithNameAndTypes is supported for output format. Please check your query.
at com.clickhouse.jdbc.StatementImpl.executeQueryImpl(StatementImpl.java:164)
at com.clickhouse.jdbc.PreparedStatementImpl.executeQuery(PreparedStatementImpl.java:144)
at ClickHouseTest.main(ClickHouseTest.java:18)
```
Clickhouse server does not produce any error, and 'clickhouse client' executes the above query without issues, therefore, I assume, there is some issue at the jdbc client side.
### Expected output
```
{
"meta":
[
{
"name": "x",
"type": "UInt8"
}
],
"data":
[
{
"x": 1
}
],
"rows": 1,
"statistics":
{
"elapsed": 0.001607,
"rows_read": 1,
"bytes_read": 1
}
}
```
### Sample code
implementation "com.clickhouse:clickhouse-jdbc-all:0.9.6"
```
import javax.sql.DataSource;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.util.Properties;
public class ClickHouseTest {
public static void main(String[] args) throws Exception {
Properties properties = new Properties();
properties.setProperty("user", "default");
properties.setProperty("password", "");
DataSource dataSource = new com.clickhouse.jdbc.DataSourceImpl("jdbc:clickhouse://127.0.0.1:8123", properties);
Connection connection = dataSource.getConnection();
PreparedStatement stmt = connection.prepareStatement("SELECT 1 as x FORMAT JSON");
ResultSet rs = stmt.executeQuery();
while (rs.next()) {
String json = rs.getString(1);
System.out.println(json);
}
stmt.close();
connection.close();
}
}
```
#### Environment
* [ ] Cloud
* Client version: 0.9.6
* Language version: 21
* OS:
#### ClickHouse Server
* ClickHouse Server version: 26.1.1.399
* ClickHouse Server non-default settings, if any:
Beitragsleitfaden
Rechercherichtung
Start with the failing path in com.clickhouse.jdbc.StatementImpl.executeQueryImpl at StatementImpl.java:164 and follow the call from PreparedStatementImpl.java:144. Reproduce the issue with ClickHouseTest.java using SELECT 1 as x FORMAT JSON, then verify that the JDBC query produces the expected JSON result instead of rejecting the output format.
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- Tech-Stack
- java
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- database
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- Bug
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- 3/5
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