ClickHouse/clickhouse-java v0.4.0

Release v0.4.0

on GitHub

Happy Spring Festival everyone! Apologize for a minor release taking so long :p

This is a feature release with new features, performance improvement, bug fixes, and unfortunately breaking changes.

• 💥 BREAKING CHANGES

  • refactored JdbcTypeMapping to make it extensible - #1075
  • removed legacy driver ru.yandex.* - #1089 by @mzitnik
  • removed most deprecated methods and class members
  • refactored data processor(for serialization and deserialization) and added new classes for unsigned types - #1124
  • refactored ClickHouseRequest/ClickHouseInputStream/ClickHouseOutputStream to better support compression - #1174 & #1189
  • extracted clickhouse-data from clickhouse-client along with new packages - #1197

    com.clickhouse.config  // generic configuration
    com.clickhouse.data    // data processing utilities
    com.clickhouse.logging // generic logging utility

  • added jdk17 in pom and changed build instructions

    mvn -Dj8 clean install # for jdk8, it was 'mvn clean install'
    mvn clean install # for jdk17, it was 'mvn -Drelease clean install'

• 🐛 Bug Fix

  • not able to cancel query when there's session_id - #1035
  • overflow error when handling BigInteger and BigDecimal in ClickHouseLongValue - #1040 by @Blackmorse
  • not handling SimpleAggregateFunction properly - #1054
  • DELETE FROM was rewritten to ALTER TABLE DELETE even when lightweight deletion was enabled - #1063
  • forced headless format for inserting - #1073
  • missing the verb "be" in error messages - #1137 by @fabiencelier
  • write time field data loss precision - #1127 by @gaaraG
  • fixed a few copy-paste error causing problem handling Geo types

• ✨ New Feature

  • added R2DBC driver - #914 by @rernas35
  • enhanced ClickHouseClient for importing and exporting compressed file - #1004
  • added new option custom_settings - #1059
  • enhanced ClickHouseRequestManager to support query/session ID customization - #1074
  • added Apache HTTP Client 5 to support socket options - #1146 by @JackyWoo
  • enhanced clickhouse-grpc-client to support request chunking and compression
    • decompress_alogrithm(request compression): BROTLI[-1,11], BZ2, DEFLATE[0,9], GZIP[-1,9], LZ4[0,18], XZ[0,9], ZSTD[0,22]
    • compress_alogrithm(response decompression): DEFLATE, LZ4, ZSTD
      Note: typo will be fixed in v0.4.1.
  • enhanced clickhouse-http-client to support zstd compression for both request and response
    • decompress_alogrithm(request compression): LZ4[0,18], ZSTD[0,22]
    • compress_alogrithm(response decompression): BROTLI, BZ2, DEFLATE, GZIP, LZ4, XZ, ZSTD
      Note: typo will be fixed in v0.4.1.
  • added stream-based prepared statement - #1163
  • browser-like client name (select distinct http_user_agent from system.query_log) - #1182
  • enhanced ClickHouseRequest by treating input stream and ClickHouseWriter equally - #1200

• 🎨 Misc

  • dropped develop branch, which accidentally removed all open pull requests 😭
  • fixed some issues captured by SonarCloud and LGTM
  • added more tests but the coverage is still very low 🤣
  • enabled nightly build in CI - check out Sonatype OSSRH

    <repositories>
        <repository>
            <id>ossrh</id>
            <name>Sonatype OSSRH</name>
            <url>https://s01.oss.sonatype.org/content/repositories/snapshots/</url>
        </repository>
    </repositories>