ClickHouse/clickhouse-odbc

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• Process aborts (SIGABRT) when the first HTTPS connection has an invalid CALocation

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  bug

  Difficulty 4/5 1-2 days Newbie friendliness 52/100

  ClickHouse/clickhouse-odbc#596 · Opened Oct 13, 2026

• TLS settings are process-global: after an SSLMode=allow connection, certificate verification is skipped for all later connections

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  bug

  Difficulty 4/5 3-5 days Newbie friendliness 48/100

  ClickHouse/clickhouse-odbc#595 · Opened Oct 13, 2026

• `SQL_NULL_DATA` is ignored when a value buffer is bound (an empty string is sent); a parameter array stops after set 1 (`SQLMoreResults` executes it but returns `SQL_NO_DATA`)

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  Difficulty 4/5 3-5 days Newbie friendliness 48/100

  ClickHouse/clickhouse-odbc#582 · Opened Aug 29, 2026

• Driver does not set SSL certificate authentication header

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  bug

  Difficulty 4/5 3-5 days Newbie friendliness 38/100

  ClickHouse/clickhouse-odbc#554 · Opened Feb 12, 2026

• Linked server using ODBC - Syntax error: Not a valid integer: DC9

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  bug

  Difficulty 4/5 3-5 days Newbie friendliness 35/100

  ClickHouse/clickhouse-odbc#529 · Opened Oct 13, 2025

• Array Binding Does Not Work

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  Difficulty 4/5 3-5 days Newbie friendliness 48/100

  ClickHouse/clickhouse-odbc#525 · 2 comments · Opened Sep 9, 2025

• Enable `send_progress_in_http_headers` to support long-running queries

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  enhancement

  ClickHouse/clickhouse-odbc#519 · 1 comment · 1 reaction · 1 assignee · Opened Aug 3, 2025

• Implement RowBinaryWithNamesAndTypes format support

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  ClickHouse/clickhouse-odbc#515 · 2 comments · 1 assignee · Opened Jul 17, 2025

• Unable to use with Excel for Mac

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  bug

  ClickHouse/clickhouse-odbc#510 · 4 comments · 1 reaction · 1 assignee · Opened Jun 24, 2025

• Power BI Direct Query CAST to DECIMAL in DIVIDE function causing precision errors

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  bug

  ClickHouse/clickhouse-odbc#505 · 7 comments · 1 assignee · Opened Jun 3, 2025

• Feature Request: ODBC Driver Support for Windows ARM64 Architecture

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  feature

  ClickHouse/clickhouse-odbc#492 · 6 comments · 1 assignee · Opened May 9, 2025

• LowCardinality(Nullable(String)) is not marked as nullable

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  bug Type Info

  Difficulty 3/5 1-2 days Newbie friendliness 58/100

  ClickHouse/clickhouse-odbc#487 · Opened Apr 16, 2025

• Implement Multithreading Support

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  bug

  ClickHouse/clickhouse-odbc#472 · 2 reactions · 1 assignee · Opened Feb 18, 2025

• "bad conversion" error

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  bug need info

  Difficulty 4/5 3-5 days Newbie friendliness 35/100

  ClickHouse/clickhouse-odbc#461 · 4 comments · Opened Nov 26, 2024

• SQLDriverConnect() error

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  bug

  Difficulty 4/5 3-5 days Newbie friendliness 42/100

  ClickHouse/clickhouse-odbc#460 · 1 comment · Opened Nov 24, 2024

• Very slow fetching string rows

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  bug

  ClickHouse/clickhouse-odbc#458 · 7 comments · 1 assignee · Opened Oct 19, 2024

• Slowness for workbooks in tableau server

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  tool:Tableau

  Difficulty 4/5 3-5 days Newbie friendliness 30/100

  ClickHouse/clickhouse-odbc#442 · 1 comment · 1 reaction · Opened Jun 3, 2024

• Does the ODBC driver support connecting to materialized views?

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  question

  Difficulty 4/5 3-5 days Newbie friendliness 25/100

  ClickHouse/clickhouse-odbc#441 · 1 comment · Opened May 16, 2024

• The last working release on Ubuntu 22.04 is 1.1.6

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  build

  Difficulty 4/5 3-5 days Newbie friendliness 35/100

  ClickHouse/clickhouse-odbc#439 · Opened Feb 21, 2024

• Convert string to varchar error on mssql linked server

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  MSSQL

  Difficulty 4/5 3-5 days Newbie friendliness 42/100

  ClickHouse/clickhouse-odbc#435 · 1 comment · Opened Nov 28, 2023

• Wrong number of fields with grouparray via ODBC

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  bug

  Difficulty 4/5 3-5 days Newbie friendliness 45/100

  ClickHouse/clickhouse-odbc#433 · 1 comment · Opened Nov 21, 2023

• Multithreading: got code SQL_INVALID_HANDLE when SQLGetData called

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  Multithreading

  Difficulty 4/5 3-5 days Newbie friendliness 45/100

  ClickHouse/clickhouse-odbc#426 · 1 comment · Opened Aug 28, 2023

• Exception when trying to insert rows with async_insert=1 setting using pyodbc

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  Difficulty 4/5 3-5 days Newbie friendliness 25/100

  ClickHouse/clickhouse-odbc#424 · Opened Jul 10, 2023

• API sqlcancel is not supported

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  Difficulty 4/5 3-5 days Newbie friendliness 35/100

  ClickHouse/clickhouse-odbc#422 · Opened Jun 20, 2023

• Please provide builds for the usual Linux distributions (Ubuntu, EL7, EL8, Debian)

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  Difficulty 4/5 3-5 days Newbie friendliness 25/100

  ClickHouse/clickhouse-odbc#420 · 3 comments · Opened May 15, 2023

• Support for UInt128, UInt256 (and others)

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  Type Info

  Difficulty 5/5 Over a week Newbie friendliness 35/100

  ClickHouse/clickhouse-odbc#418 · 1 comment · Opened Jan 17, 2023

• Unable to retrieve german umlauts from ClickHouse using ODBC (only)

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  Difficulty 4/5 3-5 days Newbie friendliness 45/100

  ClickHouse/clickhouse-odbc#417 · 5 comments · Opened Jan 9, 2023

• No 32-bit ODBC driver for Windows

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  Difficulty 4/5 3-5 days Newbie friendliness 35/100

  ClickHouse/clickhouse-odbc#414 · 7 comments · 2 reactions · Opened Nov 17, 2022

• Remove ODBC {escape '/'} escape sequence

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  Difficulty 3/5 1-2 days Newbie friendliness 38/100

  ClickHouse/clickhouse-odbc#413 · Opened Nov 9, 2022

• Fail to get correct precison and scale of decimal through ODBC SQLDescribeColW()

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  Type Info

  Difficulty 4/5 3-5 days Newbie friendliness 25/100

  ClickHouse/clickhouse-odbc#412 · Opened Oct 19, 2022

• OracleBI Clickhouse connection with odbc driver string datatype problem

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  Difficulty 4/5 3-5 days Newbie friendliness 25/100

  ClickHouse/clickhouse-odbc#389 · 5 comments · Opened Jan 26, 2022

• OracleDB read data from ClickHouse via clickhouse-odbc error because of 2 long columns.

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  Difficulty 3/5 1-2 days Newbie friendliness 35/100

  ClickHouse/clickhouse-odbc#386 · Opened Dec 21, 2021

• Multiple hosts/endpoints for HA and load balancing (like in clickhouse-jdbc)

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  Difficulty 5/5 Over a week Newbie friendliness 25/100

  ClickHouse/clickhouse-odbc#385 · Opened Dec 21, 2021

• Floats get rounded if handled as String

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  Difficulty 4/5 3-5 days Newbie friendliness 25/100

  ClickHouse/clickhouse-odbc#382 · Opened Nov 22, 2021

• Ошибка "Cannot get the column information" в простом запросе к ClickHouse как Linked server в MS SQL через ODBC

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  MSSQL need info

  Difficulty 4/5 3-5 days Newbie friendliness 30/100

  ClickHouse/clickhouse-odbc#371 · 7 comments · Opened Aug 10, 2021

• Driver error on mac M1 Big sur 11.4

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  build macos wontfix

  Difficulty 4/5 3-5 days Newbie friendliness 20/100

  ClickHouse/clickhouse-odbc#363 · 6 comments · Opened Jun 29, 2021

• new driver crash on SQLCancel

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  bug need info

  Difficulty 4/5 3-5 days Newbie friendliness 25/100

  ClickHouse/clickhouse-odbc#357 · 2 comments · Opened May 17, 2021

• How can I workaround Malformed message: Too many header fields error?

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  need info question

  Difficulty 4/5 3-5 days Newbie friendliness 25/100

  ClickHouse/clickhouse-odbc#347 · 3 comments · 1 reaction · Opened Feb 26, 2021

• Unable to get the driver working on mac os

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  macos need info question

  Difficulty 4/5 3-5 days Newbie friendliness 20/100

  ClickHouse/clickhouse-odbc#343 · 3 comments · Opened Jan 27, 2021

• Using sql with ternary op doesn't work in Tableau

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  Difficulty 4/5 3-5 days Newbie friendliness 45/100

  ClickHouse/clickhouse-odbc#323 · 4 comments · Opened Nov 1, 2020

• Passing URL with parameters into url() table function

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  Difficulty 4/5 3-5 days Newbie friendliness 35/100

  ClickHouse/clickhouse-odbc#312 · 3 comments · Opened Aug 25, 2020

• CH ODBC with MS Access

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  bug MS Access

  Difficulty 4/5 3-5 days Newbie friendliness 25/100

  ClickHouse/clickhouse-odbc#275 · 13 comments · Opened Mar 3, 2020

• Windows installer should be able to update / uninstall existing version

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  bug build

  Difficulty 4/5 3-5 days Newbie friendliness 25/100

  ClickHouse/clickhouse-odbc#266 · Opened Feb 24, 2020

• test/client_utils.h: out-of-bound access found by Coverity

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  Difficulty 2/5 1-3 hours Newbie friendliness 45/100

  ClickHouse/clickhouse-odbc#216 · 2 comments · Opened Dec 1, 2019

• ClickHouse as a Linked Server in MSSQL

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  MSSQL need info

  Difficulty 4/5 3-5 days Newbie friendliness 25/100

  ClickHouse/clickhouse-odbc#215 · 8 comments · Opened Nov 27, 2019

• How to set receive_timeout, connect_timeout and send_timeout while connecting using ODBC.

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  Difficulty 3/5 1-2 days Newbie friendliness 35/100

  ClickHouse/clickhouse-odbc#175 · 10 comments · Opened May 22, 2019

• Driver not working with Azure data factory

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  bug wontfix

  ClickHouse/clickhouse-odbc#174 · 6 comments · 1 assignee · Opened May 10, 2019

• add deb/rpm package to official repo

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  enhancement

  Difficulty 4/5 3-5 days Newbie friendliness 20/100

  ClickHouse/clickhouse-odbc#170 · 1 comment · Opened Apr 22, 2019

• Support JWT / bearer token authentication

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  Difficulty 4/5 3-5 days Newbie friendliness 52/100

  ClickHouse/clickhouse-odbc#592 · Opened Oct 5, 2026