List view

When serialize FixedString and string is bigger than size defined in Table definition

area:data-typedata type processing issuesdata type processing issues

client-api-v2

v2-feedback

Status: Open.

#2223 In ClickHouse/clickhouse-java;

· mzitnik opened on Mar 14, 2025

[JDBC-V2] DatabaseMetadata issues & improvements

area:jdbc-metadataissue handling metadata things like getting type of columnissue handling metadata things like getting type of column

bug

jdbc-v2jdbc-v2 issuesjdbc-v2 issues

Status: Open.

#2518 In ClickHouse/clickhouse-java;

· chernser opened on Jul 31, 2025

IllegalArgumentException caused by local default datetime when using nullAsDefault property

area:data-typedata type processing issuesdata type processing issues

area:docsDocumentation missingDocumentation missing

bug

client-api-v2

jdbc-v2jdbc-v2 issuesjdbc-v2 issues

Status: Open.

#1735 In ClickHouse/clickhouse-java;

· yanye666 opened on Jul 16, 2024

[jdbc] Incorrect DateTime results when writing numeric data with use_time_zone property

area:data-typedata type processing issuesdata type processing issues

bug

jdbc-v1JDBC driverJDBC driver

Status: Open.

#2065 In ClickHouse/clickhouse-java;

· haishui126 opened on Jan 2, 2025

[jdbc-v2] Incorrect timezone transformation when reading from ClickHouse

area:data-typedata type processing issuesdata type processing issues

area:jdbc-readreading data with jdbcreading data with jdbc

bug

jdbc-v2jdbc-v2 issuesjdbc-v2 issues

Status: Open.

#2496 In ClickHouse/clickhouse-java;

· GFriedrich opened on Jul 13, 2025

[client-v2] Client does not honor sslMode=none

area:networknetwork and IO related issuesnetwork and IO related issues

bug

client-api-v2

Status: Open.

#2389 In ClickHouse/clickhouse-java;

· dpsutton opened on May 26, 2025

[client-v2] Support self-signed certificates

client-api-v2

enhancement

Status: Open.

#2309 In ClickHouse/clickhouse-java;

· chernser opened on Apr 15, 2025

[jdbc-v2] Impossible to SELECT duplicated data in 0.8.4

bug

client-api-v2

Status: Open.

#2336 In ClickHouse/clickhouse-java;

· Onajk opened on Apr 24, 2025

<code>SQL Error [HY000]: Multiple entries with same key: ...</code> when working on analysis with new drivers.

area:client-readhandling data read in clienthandling data read in client

bug

client-api-v2

jdbc-v2jdbc-v2 issuesjdbc-v2 issues

Status: Open.

#2459 In ClickHouse/clickhouse-java;

· paulius-kantautas opened on Jun 17, 2025

If received NetException from ClickHouse in response body, it will be ignored and unrecognized

area:error-handling

bug

client-api-v2

Status: Open.

#2287 In ClickHouse/clickhouse-java;

· DNAlchemist opened on Apr 7, 2025

[client-v2] Add support of working with large strings

client-api-v2

enhancement

jdbc-v2jdbc-v2 issuesjdbc-v2 issues

Status: Open.

#2263 In ClickHouse/clickhouse-java;

· Paultagoras opened on Apr 1, 2025

[JDBC-V2] DatabaseMetadata: review and tests support flags.

area:jdbc-metadataissue handling metadata things like getting type of columnissue handling metadata things like getting type of column

jdbc-v2jdbc-v2 issuesjdbc-v2 issues

Status: Open.

#2519 In ClickHouse/clickhouse-java;

· chernser opened on Jul 31, 2025

[JDBC-V2] DatabaseMedata: review max values

area:jdbc-metadataissue handling metadata things like getting type of columnissue handling metadata things like getting type of column

jdbc-v2jdbc-v2 issuesjdbc-v2 issues

Status: Open.

#2520 In ClickHouse/clickhouse-java;

· chernser opened on Jul 31, 2025

[jdbc-v2] EXPLAIN doesnt return any resultset from version 0.8.6

area:sql-parser

bug

jdbc-v2jdbc-v2 issuesjdbc-v2 issues

Status: Open.

#2537 In ClickHouse/clickhouse-java;

· magnus-dbvis opened on Aug 13, 2025

[client-v2] JSON Support

area:docsDocumentation missingDocumentation missing

client-api-v2

Status: Open.

#1833 In ClickHouse/clickhouse-java;

· chernser opened on Sep 25, 2024

Prepared statement IN with Date as value

area:data-typedata type processing issuesdata type processing issues

area:jdbc-readreading data with jdbcreading data with jdbc

bug

jdbc-v2jdbc-v2 issuesjdbc-v2 issues

Status: Open.

#2557 In ClickHouse/clickhouse-java;

· KrutNA opened on Aug 28, 2025

[jdbc-v2] Potentially wrong encoding for java.sql.Date

area:data-typedata type processing issuesdata type processing issues

bug

jdbc-v2jdbc-v2 issuesjdbc-v2 issues

Status: Open.

#2381 In ClickHouse/clickhouse-java;

· Onajk opened on May 22, 2025

[JDBC-V2] Review Metabase test failures

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

bug

jdbc-v2jdbc-v2 issuesjdbc-v2 issues

Status: Open.

#2567 In ClickHouse/clickhouse-java;

· chernser opened on Sep 9, 2025

[JDBC-V2] Statement.execute() returns false for CTE queries

area:sql-parser

bug

jdbc-v2jdbc-v2 issuesjdbc-v2 issues

Status: Open.

#2574 In ClickHouse/clickhouse-java;

· chernser opened on Sep 9, 2025

[JBDC-V2] Parser issue

area:sql-parser

bug

jdbc-v2jdbc-v2 issuesjdbc-v2 issues

Status: Open.

#2576 In ClickHouse/clickhouse-java;

· chernser opened on Sep 10, 2025

java.lang.ArrayIndexOutOfBoundsException when trying to bind a variable to a query that uses keywords as aliases

area:sql-parser

bug

jdbc-v2jdbc-v2 issuesjdbc-v2 issues

Status: Open.

#2568 In ClickHouse/clickhouse-java;

· lukaseder opened on Sep 9, 2025

java.sql.SQLException: java.io.IOException: Failed to read boolean value, expect 0 (false) or 1 (true) but we got: 67

investigatingInvestigation of a root cause is on goingInvestigation of a root cause is on going

jdbc-v1JDBC driverJDBC driver

Status: Open.

Bug

#2102 In ClickHouse/clickhouse-java;

· sunqiaozz opened on Jan 22, 2025

Support for JSON data type on Dbeaver - Datagrip

bug

jdbc-v2jdbc-v2 issuesjdbc-v2 issues

Status: Open.

#2593 In ClickHouse/clickhouse-java;

· shi-sis opened on Sep 17, 2025

invalid parameter count with CTEs in 0.92

area:sql-parser

bug

jdbc-v2jdbc-v2 issuesjdbc-v2 issues

Status: Open.

#2595 In ClickHouse/clickhouse-java;

· dpsutton opened on Sep 17, 2025

Querying JSON field returns "Failed to read value for column data" or "Failed to read next row"

area:data-typedata type processing issuesdata type processing issues

bug

jdbc-v2jdbc-v2 issuesjdbc-v2 issues

Status: Open.

#2598 In ClickHouse/clickhouse-java;

· philip-dbvis opened on Sep 19, 2025