Issues

• Restore cwd when native chDB import fails

  chdb-io/chdb#651 · Filter by author joeharris76 opened on Sep 28, 2026

• macOS 27: chdb-core arm64 wheel fails to dlopen (mis-aligned LINKEDIT string pool)

  chdb-io/chdb#649 · Filter by author batuhaneralp-hilberts opened on Sep 25, 2026
  2

• "format_schema_path" is ignored when loading Protobuf schemas

  bug
  chdb-io/chdb#642 · Filter by author WINSDK opened on Sep 11, 2026

• Deploy chdb Python UDFs to a remote ClickHouse server

  chdb-io/chdb#628 · Filter by author wudidapaopao opened on Aug 19, 2026

• Test Arrow file reads against gold integration test files

  bug
  chdb-io/chdb#625 · Filter by author ianmcook opened on Aug 17, 2026
  4

• Hive partition column missing when WHERE is used with file(..., Parquet)

  chdb-io/chdb#538 · Filter by author mariannacao opened on Mar 12, 2026
  1

  

• Flaky Test: tests/test_json_accessor.py

  chdb-io/chdb#519 · Filter by author wudidapaopao opened on Feb 11, 2026
  

• Enable remote ClickHouse access via chDB capabilities in clickhouse-connect

  feature request
  chdb-io/chdb#492 · Filter by author wudidapaopao opened on Jan 22, 2026
  3

• Add chunk size in streaming function

  chdb-io/chdb#473 · Filter by author s0und0fs1lence opened on Jan 9, 2026
  1

• Slow query response for small datasets in chDB

  chdb-io/chdb#442 · Filter by author wudidapaopao opened on Dec 11, 2025
  3

• Add chDB to LakeBench

  chdb-io/chdb#416 · Filter by author cyrusmsk opened on Nov 5, 2025

• Slower performance than expected for TPC-H SF100 Q01

  chdb-io/chdb#402 · Filter by author beckernick opened on Oct 17, 2025
  2

• Are pyarrow and pandas required or not?

  question
  chdb-io/chdb#386 · Filter by author matrey opened on Sep 22, 2025
  5

  

• [RFC] chDB Data Science API Design

  chdb-io/chdb#376 · Filter by author auxten opened on Sep 8, 2025
  5

• [Question] Best practice to avoid "DATABASE_ALREADY_EXISTS" with session mode in chdb-go

  chdb-io/chdb#357 · Filter by author yidigo opened on Jul 28, 2025
  12

  

• chDB 2025 Quarterly Plan

  chdb-io/chdb#328 · Filter by author auxten opened on May 8, 2025

• mysql table function: mysqlxx::ConnectionFailed: SSL connection error: unsupported protocol

  chdb-io/chdb#325 · Filter by author 380828801 opened on Apr 22, 2025
  1

• Fail to query DataFrame with Decimal with sum, treated as string

  chdb-io/chdb#323 · Filter by author jovezhong opened on Apr 16, 2025
  1

• Provide an API for query progress reporting

  chdb-io/chdb#292 · Filter by author arnaudbriche opened on Jan 6, 2025
  3

• Load table error

  Session
  chdb-io/chdb#267 · Filter by author agoncear-mwb opened on Sep 16, 2024
  5

• Create table view/ import from pandas in a session

  Session
  chdb-io/chdb#258 · Filter by author DanielMao1 opened on Aug 21, 2024
  6

• Performance issue on c6a.metal vs c6a.4xlarge and chDB vs clickhouse-local

  Performance
  chdb-io/chdb#254 · Filter by author auxten opened on Aug 13, 2024
  1

  

• Support complex type in Python Table Engine like Array and Map, Object

  Json
  chdb-io/chdb#251 · Filter by author auxten opened on Jul 24, 2024
  2

  

• Filter pushdown in PyReader

  Performance
  chdb-io/chdb#249 · Filter by author delta003 opened on Jul 22, 2024
  1

• Provide Java driver

  help wanted
  chdb-io/chdb#243 · Filter by author schrepfler opened on Jul 4, 2024
  4