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Java client and JDBC driver for ClickHouse

Results 485 clickhouse-java issues
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### Use case Development environments not always have a valid SSL certificate for endpoints. It requires client to skip some validation to make development possible. ### Describe the solution you'd...

enhancement
client-api-v2

In the client v1, there is a `stream()` method in the `ClickHouseResponse` class that returns a stream of POJO's: https://github.com/ClickHouse/clickhouse-java/blob/8649357eb64b14d970148e68815fc46d378c2ab7/clickhouse-client/src/main/java/com/clickhouse/client/ClickHouseResponse.java#L195-L203 In the client v2, the `Client` class has a `queryAll()`...

enhancement
client-api-v2

### Use case BFloat16 introduced in 24.11 and should be supported https://clickhouse.com/blog/clickhouse-release-24-11#bfloat16-data-type ### Describe the solution you'd like ### Describe the alternatives you've considered ### Additional context

enhancement
client-api-v2

### Use case We are used to work with `Protocol Buffer` data in our `Beam Dataflow` ingestion pipeline. We tried many ways to ingest data and the easiest was with...

enhancement
client-api-v2

### Description Some loggers do not work well with parameters in the message. Should be replaced with concat. ```WARN com.clickhouse.client.api.Client ParameterizedMessage[messagePattern=Failed to connect to '{}': {}, argCount=2, throwableProvided=false]```

bug
client-api-v2

### Describe the bug The v2 client spams "v2 driver" log messages at "info" level from: https://github.com/ClickHouse/clickhouse-java/blob/7b7749fb00c848d4ecbec74d54ac8dca8f12de4e/clickhouse-jdbc/src/main/java/com/clickhouse/jdbc/ClickHouseDriver.java#L83 ### Steps to reproduce 1. Create a v2 client and make queries with...

bug
jdbc-v2

We need to document how people can use [Micrometer](https://micrometer.io/) (or other metrics) in some way - whether that be java code examples, or pure documentation. We should definitely provide copy...

### Description There seems a problem with writing datetime values in the new client. One of cases is when LocalDateTime is written thru serializers to DateTime64 values. To fix the...

bug
client-api-v2
data-type

### Describe the bug The DateTime results will -8h when inserting long values using PrepareStatement with use_server_time_zone=false&use_time_zone=Asia/Shanghai. (ClickHouse Server timezone is UTC) Expected: '1970-01-01 08:00:00.001000000' Actual: '1970-01-01 00:00:00.001000000' (timezone is...

bug
jdbc-v1
area:data-type

## Description There are some method that require implementation: - `setLogWriter(java.io.PrintWriter out)` - `setLoginTimeout(int seconds)` - `getLoginTimeout()` - `getParentLogger()`

bug
jdbc-v2