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Upgrade ClickHouse JDBC to 0.11.1 - #178
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Update the server and automation driver dependencies to support ClickHouse 26.9, including its ZSTD-compressed responses. Test against ClickHouse 24 and 26.9 and remove cases that set http_connection_provider, which JDBC v2 ignores. Update the driver recommendation in the ClickHouse guide.
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This PR is parked here for a week or two. clickhouse-jdbc's changelog is huge - we will test it in production for a week or two before merging and making it a default. |
ostinru
changed the title
ostinru
marked this pull request as ready for review
November 12, 2026 07:00
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We have updated 2/3 of all our users to clickhouse-jdbc 0.11.0 - no issues observed. |
MisterRaindrop
approved these changes
Nov 12, 2026
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Upgrade the bundled ClickHouse JDBC driver and the automation dependency to 0.11.1, and update the recommended version in the documentation.
This upgrade fixes compatibility with ClickHouse 26.9+ (
Invalid LZ4 magic byte: -112; ClickHouse/clickhouse-java#3105). Version 0.11.1 also fixes a regression introduced in 0.11.0 where inserts with request compression could fail on incompressible data withLZ4Exception: maxDestLen is too smallorZstdException: Destination buffer is too small.The V2 driver uses Apache HttpClient and ignores the legacy
http_connection_provideroption. The automation test no longer overrides that option.Migration note: V2 uses
ssl_modeinstead ofsslmode, andssl_keyinstead ofsslkey. The equivalent ofsslmode=noneisssl_mode=TRUST;STRICTremains the default and verifies the certificate chain and hostname.Release notes: https://github.com/ClickHouse/clickhouse-java/releases/tag/v0.11.1
Validation: checked version consistency across the bundled driver, automation dependency, and documentation;
git diff --checkpassed. GitHub CI is queued for commit d2a28d4.