clickhouse-java icon indicating copy to clipboard operation
clickhouse-java copied to clipboard

Java client and JDBC driver for ClickHouse

Results 485 clickhouse-java issues
Sort by recently updated
recently updated
newest added

I want to pass mybatis bitmap through the stream to query, can it be implemented? ![telegram-cloud-document-5-6257914263923329575](https://user-images.githubusercontent.com/42414099/216821881-6577b15a-94db-42cd-aaf2-4e8c5ab9a0ed.jpg) Like this, can you pass it to bitmap and filter it with another table?

jdbc-v1
area:docs
area:data-type

# version: clickhouse:21.7 clickhouse-jdbc 0.3.2-patch11 # issue: Caused by: java.sql.BatchUpdateException: Code: 6, e.displayText() = DB::Exception: Cannot parse string '2023-02-02 18:26:21.363' as DateTime: syntax error at position 19 (parsed just '2023-02-02...

module-client
jdbc-v1
client-api-v2
area:data-type
action:verify

On ClickHouse client/driver versions 0.8.6 and 0.9.4, reading a column of type: ``` Array(Map(LowCardinality(String), String)) ``` fails with: ``` [HY000] Failed to read value for column traits array element type...

bug
client-api-v2
jdbc-v2
area:data-type

### The documentation is a bit lacking so I'd appreciate assistance with migration from prepared statement old version jdbc to client v2 batch insert logic. Clickhouse: on-prem installation version: clickhouse-server:23.8.9.54...

v2-feedback
jdbc-v2
area:jdbc-insert

### Description In some cases it is required to override `async_insert` setting in JDBC even it contradicts some JDBC rules. See related comment: https://github.com/ClickHouse/clickhouse-java/issues/2312#issuecomment-3506847964

bug
jdbc-v2
area:general

### Use case As of today, several tools rely on the JDBC client under the hood, including DataGrip, Tableau, DBeaver, and others. For Tableau, due to vendor limitations, it’s not...

enhancement
jdbc-v2

### Description There is potentially a feature in ClickHouse when 'a.b.c' where 'a.b' is a DB name become valid without quotes. Today JDBC driver accepts ony 'a.b' where `a` is...

enhancement
jdbc-v2
area:sql-parser

## Description Recently we have found that while using `queryRecords` leads to error when user forget to close `Records` object what leads to a connection leaking. We need to review...

client-api-v2

### Description Migration guide is required for deprecation to let users know: - differences between versions - trade-offs - new features

enhancement

## Description Implement support for `MacAddress` data type: - introduce new type - make JDBC type mapping - add support for variant and dynamic See https://github.com/ClickHouse/ClickHouse/issues/76309

enhancement