ClickHouse/clickhouse-cpp

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C++ client library for ClickHouse

Stars: 382
Forks: 209
Open beginner issues: 0
Indexed issues: 44
Avg merge: 3h 58m
Merged PRs (30d): 12

Dominant language: C
License: Apache-2.0
Last GitHub push: Sep 4, 2026
Latest indexed: Sep 15, 2026
Contributing guide: No contributing guide
Code of conduct: Code of conduct
Beginner labels: No beginner labels indexed

Open All

44 open issues indexed

Nested tables support Open

enhancement priority-low

ClickHouse/clickhouse-cpp#40 · 7 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Generate CMake config files when installing the project Open

enhancement

ClickHouse/clickhouse-cpp#105 · 0 comments · 3 reactions · 0 assignees · Indexed Sep 15, 2026
rpm packaging Open

enhancement platform-support

ClickHouse/clickhouse-cpp#125 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
RFC: a possibility to accept textish formats (streaming them to the server) Open

ClickHouse/clickhouse-cpp#138 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Parameters in queries Open

enhancement need-info

ClickHouse/clickhouse-cpp#153 · 9 comments · 1 reaction · 0 assignees · Indexed Sep 15, 2026
when clickhouse-server died, clickhouse-cpp hang in recv while doing Insert Open

bug

ClickHouse/clickhouse-cpp#209 · 3 comments · 0 reactions · 1 assignee · Indexed Sep 15, 2026
API change: Column methods should throw exceptions consistently Open

3.0

ClickHouse/clickhouse-cpp#243 · 1 comment · 0 reactions · 1 assignee · Indexed Sep 15, 2026
Remove deprecated headers/functions/options in 3.0 Open

3.0

ClickHouse/clickhouse-cpp#251 · 0 comments · 0 reactions · 1 assignee · Indexed Sep 15, 2026
abseil library isn't installed resulting in compilation error Open

bug install-packages

ClickHouse/clickhouse-cpp#284 · 5 comments · 2 reactions · 1 assignee · Indexed Sep 15, 2026
Support of the block of totals Open

ClickHouse/clickhouse-cpp#297 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Ability to set settings on Inserts Open

enhancement pg_clickhouse

ClickHouse/clickhouse-cpp#303 · 5 comments · 1 reaction · 0 assignees · Indexed Sep 15, 2026
new feature needed : suport coroutine for co_yield c++20 Open

enhancement need-info

ClickHouse/clickhouse-cpp#305 · 7 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Subscription for data updates Open

enhancement

ClickHouse/clickhouse-cpp#353 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Can't cast from Nullable(UInt64) Open

bug

ClickHouse/clickhouse-cpp#368 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Remove `my_result_of_t` in favor of `std::invoke_result_t` Open

3.0 enhancement

ClickHouse/clickhouse-cpp#370 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Automatic reconnect ignores settings applied for the connection Open

bug

ClickHouse/clickhouse-cpp#371 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Support Decimal256 Open

ClickHouse/clickhouse-cpp#377 · 1 comment · 1 reaction · 0 assignees · Indexed Sep 15, 2026
the Server Resets the Connection when the Client-cpp Inserts Data into a Narrow Table Open

bug

ClickHouse/clickhouse-cpp#381 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Deadlock on executing special kind of query Open

ClickHouse/clickhouse-cpp#396 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Strange behavior with dateTime Open

documentation enhancement

ClickHouse/clickhouse-cpp#398 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
how to add run path to libclickhouse-cpp-lib.so Open

need-info

ClickHouse/clickhouse-cpp#402 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Bug in MAX Function with MergeTree Engine Open

bug need-info

ClickHouse/clickhouse-cpp#403 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Client not always throws an exception on server error during insert Open

bug need-info

ClickHouse/clickhouse-cpp#406 · 1 comment · 1 reaction · 0 assignees · Indexed Sep 15, 2026
Allow for inheritance of Query Interface Open

enhancement

ClickHouse/clickhouse-cpp#416 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
g++ 15.1.1 compile warning "<ciso646> is deprecated in C++17 Open

question

ClickHouse/clickhouse-cpp#421 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
JSON column support on native protocol Open

pg_clickhouse

ClickHouse/clickhouse-cpp#422 · 5 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Compatibility Issue: grpc/1.71.0 and clickhouse-cpp/2.5.1 - abseil-cpp Symbol/Linking Conflicts Open

ClickHouse/clickhouse-cpp#430 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
clickhouse-cpp/2.5.1 Conan package fails to build with GCC 11 Open

ClickHouse/clickhouse-cpp#452 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Can we get a publish to conan on 2.6.0 Open

ClickHouse/clickhouse-cpp#456 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
ColumnLowCardinalityT fail in constructor Open

ClickHouse/clickhouse-cpp#457 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Is it possible to use exception handler with insert table with block? Open

ClickHouse/clickhouse-cpp#460 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Add `NewColumn()` to `ColumnArray` Open

enhancement pg_clickhouse

ClickHouse/clickhouse-cpp#478 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Add `GetString()` to additional column types Open

enhancement pg_clickhouse

ClickHouse/clickhouse-cpp#479 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Blocking socket during handshake allows denial of service via partial TCP message Open

ClickHouse/clickhouse-cpp#486 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
`SocketInput::DoRead` reports stale errno on clean connection close Open

ClickHouse/clickhouse-cpp#487 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Socket closed without `shutdown()` causes TIME_WAIT accumulation and data loss risk Open

ClickHouse/clickhouse-cpp#488 · 3 comments · 0 reactions · 1 assignee · Indexed Sep 15, 2026
Reading LowCardinality(Nullable(String)) column is not supported (for the data received from ClickHouse) Open

ClickHouse/clickhouse-cpp#504 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Incorrect byte order conversion in ColumnIPv4::Append() overloads Open

ClickHouse/clickhouse-cpp#521 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Build fails with GCC 16 due to -Werror=array-bounds false positive in ColumnBool constructor Open

ClickHouse/clickhouse-cpp#524 · 1 comment · 1 reaction · 0 assignees · Indexed Sep 15, 2026
ColumnArray::AppendAsColumn silently accepts a wrong-typed element column, writes zero data bytes and desynchronizes the native block stream Open

ClickHouse/clickhouse-cpp#543 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Exceptions produced by the library leave the socket in inconsistent state Open

ClickHouse/clickhouse-cpp#549 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Native TCP: CompressionMethod::ZSTD is not honored for server -> client blocks (network_compression_method never sent) Open

ClickHouse/clickhouse-cpp#556 · 0 comments · 1 reaction · 0 assignees · Indexed Sep 15, 2026
Client::Insert concatenates the raw table name into SQL — table names needing backquotes cannot be used Open

ClickHouse/clickhouse-cpp#560 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Allow optional QuerySettings on Client::Insert() for native-format inserts Open

ClickHouse/clickhouse-cpp#565 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026

ClickHouse/clickhouse-cpp

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