clickhouse-java
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ClickHouse
Java client and JDBC driver for ClickHouse
There are some [JDBC related tests](https://github.com/eclipse-ee4j/jakartaee-tck/tree/master/src/com/sun/ts/tests/jdbc) published as part of the [Jakarta EE TCK](https://github.com/eclipse-ee4j/jakartaee-tck). We should try to integrate them in our verification workflow. This is not an easy task,...
I don't understand the implementation of isValid in ClickHouseConnectionImpl: ``` @Override public boolean isValid(int timeout) throws SQLException { if (isClosed()) { return false; } try { ClickHouseProperties properties = new...
There are some mistakes with SELECT SYNTAX "FORMAT JSON" in the tail through jdbc driver. clickhouse-client works normally. such as: SELECT '1' as col_1, toDate('2018-05-01') as col_2, 3.3 as col_3,...
I am using ClickHouse-JDBC 0.2.4 version to connect to 20.5.4.40 service to execute SQL "select * from table where 1=2", but occasionally the error message is "code: 497, not enough...
I have some question about jdbc When i create connection in pentaho by `jdbc` - i can see tables and ect... but i dont see columns to create any relations....
Hello, Another question, I tried to activate the HTTP gzip compression but when I looked in the code it seems to me that, even if the name of the setting...
- ClickHouse version 20.3.5.21 - Jdbc version: 0.2.4 **Warn appears when using actualize().** ```java this.balanced = new BalancedClickhouseDataSource(getJdbcUrl(), clickHouseProperties); this.balanced.scheduleActualization(5, TimeUnit.SECONDS); ``` **Check whether the node is alive every 5s**...
In my project I have invoked `scheduledActualization()` while creating `BalancedClickhouseDataSource` which enable/disable urls in clickhouse cluster based on health check of node in cluster. Some time I am getting `java.sql.SQLException:...
In config file jdbcdrivers.xml required attribute: `URLHelperClassname`. ``
I have a column of type Array(Nullable(String)). Currently i have found no way to use markNextNullable to correctly stream value for column with that type. Is it possible?
