Issues

• Array(Nested(...)) columns silently decode as Array(Nothing) and desynchronize the native block stream

  ClickHouse/clickhouse-cpp#571 · Filter by author claude opened on Oct 1, 2026

• Allow optional QuerySettings on Client::Insert() for native-format inserts

  ClickHouse/clickhouse-cpp#565 · Filter by author jyberg opened on Sep 8, 2026

• Client::Insert concatenates the raw table name into SQL — table names needing backquotes cannot be used

  Bug

  ClickHouse/clickhouse-cpp#560 · Filter by author claude opened on Aug 31, 2026
  1

• Native TCP: CompressionMethod::ZSTD is not honored for server -> client blocks (network_compression_method never sent)

  ClickHouse/clickhouse-cpp#556 · Filter by author claude opened on Aug 24, 2026

• Exceptions produced by the library leave the socket in inconsistent state

  ClickHouse/clickhouse-cpp#549 · Filter by author slabko opened on Aug 20, 2026

• ColumnArray::AppendAsColumn silently accepts a wrong-typed element column, writes zero data bytes and desynchronizes the native block stream

  ClickHouse/clickhouse-cpp#543 · Filter by author claude opened on Aug 4, 2026

• Build fails with GCC 16 due to -Werror=array-bounds false positive in ColumnBool constructor

  Bug

  ClickHouse/clickhouse-cpp#524 · Filter by author pavel-odintsov opened on Jun 26, 2026
  4

• Reading LowCardinality(Nullable(String)) column is not supported (for the data received from ClickHouse)

  ClickHouse/clickhouse-cpp#504 · Filter by author rklepov opened on May 30, 2026

• Blocking socket during handshake allows denial of service via partial TCP message

  ClickHouse/clickhouse-cpp#486 · Filter by author jyberg opened on Apr 22, 2026

• Add GetString() to additional column types

  enhancementpg_clickhouse
  ClickHouse/clickhouse-cpp#479 · Filter by author iskakaushik opened on Apr 10, 2026

• Add NewColumn() to ColumnArray

  enhancementpg_clickhouse
  ClickHouse/clickhouse-cpp#478 · Filter by author iskakaushik opened on Apr 10, 2026
  1

• Is it possible to use exception handler with insert table with block?

  ClickHouse/clickhouse-cpp#460 · Filter by author sabudilovskiy opened on Jan 28, 2026
  1

• ColumnLowCardinalityT fail in constructor

  ClickHouse/clickhouse-cpp#457 · Filter by author sabudilovskiy opened on Dec 21, 2025
  3

• Can we get a publish to conan on 2.6.0

  ClickHouse/clickhouse-cpp#456 · Filter by author leonoosterwijktrafigura opened on Dec 17, 2025
  2

• clickhouse-cpp/2.5.1 Conan package fails to build with GCC 11

  ClickHouse/clickhouse-cpp#452 · Filter by author simsicon opened on Dec 1, 2025
  3

• Compatibility Issue: grpc/1.71.0 and clickhouse-cpp/2.5.1 - abseil-cpp Symbol/Linking Conflicts

  ClickHouse/clickhouse-cpp#430 · Filter by author puneet-finesse opened on Jun 20, 2025
  1

• JSON column support on native protocol

  pg_clickhouse
  ClickHouse/clickhouse-cpp#422 · Filter by author mrAndersen opened on May 14, 2025
  5

• g++ 15.1.1 compile warning "<ciso646> is deprecated in C++17

  question
  ClickHouse/clickhouse-cpp#421 · Filter by author ZCKevin-TW opened on May 13, 2025
  1

• Allow for inheritance of Query Interface

  enhancement
  ClickHouse/clickhouse-cpp#416 · Filter by author yatendra-sychedelic opened on Apr 9, 2025

• Client not always throws an exception on server error during insert

  bugneed-info
  ClickHouse/clickhouse-cpp#406 · Filter by author FadeevEgor opened on Dec 16, 2024
  1

• Bug in MAX Function with MergeTree Engine

  bugneed-info
  ClickHouse/clickhouse-cpp#403 · Filter by author starbarry opened on Dec 11, 2024
  1

• how to add run path to libclickhouse-cpp-lib.so

  need-info
  ClickHouse/clickhouse-cpp#402 · Filter by author oushisan opened on Nov 20, 2024
  1

• Strange behavior with dateTime

  documentationenhancement
  ClickHouse/clickhouse-cpp#398 · Filter by author OlegGalizin opened on Oct 10, 2024
  1

• Deadlock on executing special kind of query

  ClickHouse/clickhouse-cpp#396 · Filter by author OlegGalizin opened on Sep 24, 2024
  3

• the Server Resets the Connection when the Client-cpp Inserts Data into a Narrow Table

  bug
  Bug

  ClickHouse/clickhouse-cpp#381 · Filter by author murphyovo opened on Aug 5, 2024