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[jdbc-v2] LightParser Implementation

area:sql-parser

enhancement

jdbc-v2jdbc-v2 issuesjdbc-v2 issues

Status: Open.

#2797 In ClickHouse/clickhouse-java;

· chernser opened on Mar 18, 2026

[client-v2, jdbc-v2] POJO Serialization Issues

area:client-pojo-serdeSerDe of POJO'sSerDe of POJO's

client-api-v2

jdbc-v2jdbc-v2 issuesjdbc-v2 issues

Status: Open.

#2828 In ClickHouse/clickhouse-java;

· chernser opened on Apr 15, 2026

[jdbc, client] Logging

enhancement

Status: Open.

#2641 In ClickHouse/clickhouse-java;

· chernser opened on Nov 4, 2025

Support QBit data type (25.10)

enhancement

Status: Open.

#2610 In ClickHouse/clickhouse-java;

· mshustov opened on Oct 9, 2025

Unsupported data type: BFloat16

area:data-typedata type processing issuesdata type processing issues

bug

client-api-v2

Status: Open.

#2349 In ClickHouse/clickhouse-java;

· tolberg91 opened on May 5, 2025

Remove legacy Object('json') implementation in Client V1

client-v1issues applicable only for an old clientissues applicable only for an old client

jdbc-v1JDBC driverJDBC driver

Status: Open.

#2594 In ClickHouse/clickhouse-java;

· mzitnik opened on Sep 17, 2025

Add option to register custom class serializers

client-api-v2

enhancement

Status: Open.

#2291 In ClickHouse/clickhouse-java;

· mikeyg123 opened on Apr 8, 2025

[client-v2] Add support of BFloat type

client-api-v2

enhancement

Status: Open.

#2279 In ClickHouse/clickhouse-java;

· chernser opened on Apr 3, 2025

[client-v2, jdbc-v2] Observability

enhancement

Status: Open.

Feature

#2639 In ClickHouse/clickhouse-java;

· chernser opened on Nov 4, 2025

[client-v2, jdbc-v2] OTel support

area:generalgeneral issue without a specific area.general issue without a specific area.

client-api-v2

jdbc-v2jdbc-v2 issuesjdbc-v2 issues

Status: Open.

Task

#2700 In ClickHouse/clickhouse-java;

· chernser opened on Dec 19, 2025

[client-v2] Concat log messages instead parameters.

bug

client-api-v2

Status: Open.

#2160 In ClickHouse/clickhouse-java;

· chernser opened on Feb 18, 2025

Document metrics usage

Status: Open.

#2147 In ClickHouse/clickhouse-java;

· Paultagoras opened on Feb 13, 2025

How to use ClientV2 and ExternalTable

client-api-v2

question

v2-feedback

Status: Open.

#2397 In ClickHouse/clickhouse-java;

· den-crane opened on May 29, 2025

[client,jdbc] Support data type MacAddress

enhancement

Status: Open.

#2643 In ClickHouse/clickhouse-java;

· chernser opened on Nov 4, 2025