Issues

• DELETE lost (row stays in ClickHouse) when its binlog timestamp is older than the previous event: _version goes backwards in 2.10.x

  Altinity/clickhouse-sink-connector#1552 · Filter by author koenverwimp opened on Oct 2, 2026

• JdbcSchemaHistory cannot recover records longer than 65000 chars (Debezium 3.1.3; fixed upstream in 3.3.0 as DBZ-8979)

  Altinity/clickhouse-sink-connector#1450 · Filter by author botriki opened on Sep 14, 2026

• ERROR - ***** Column index missing for column

  Altinity/clickhouse-sink-connector#1433 · Filter by author Chocobo37 opened on Sep 4, 2026
  2

• Initial Snaptshot never finishes

  Altinity/clickhouse-sink-connector#1379 · Filter by author tomh4 opened on Aug 6, 2026 · 2.11.0
  41

• CH server support

  Altinity/clickhouse-sink-connector#1329 · Filter by author subkanthi opened on Jul 7, 2026 · 2.11.0

• Proposal: TTL calculation based on field _valid_from for fact tables, with version history enabled

  Altinity/clickhouse-sink-connector#1326 · Filter by author Cong-Ye opened on Jun 26, 2026
  4

  

• Support config override from env

  Altinity/clickhouse-sink-connector#1324 · Filter by author Cong-Ye opened on Jun 26, 2026

• [BUG-DATA-6] DDL parser parseSql() return value is always null — dead code

  bug
  Altinity/clickhouse-sink-connector#1298 · Filter by author minguyen9988 opened on May 17, 2026

• [BUG-DATA-5] Non-atomic offset update — crash between DELETE and INSERT loses offset permanently

  bug
  Altinity/clickhouse-sink-connector#1297 · Filter by author minguyen9988 opened on May 17, 2026

• [BUG-SEC-5] SQL injection in createHistoryDatabase — database name interpolated into DDL string

  bug
  Altinity/clickhouse-sink-connector#1294 · Filter by author minguyen9988 opened on May 17, 2026

• [BUG-SEC-3] Shell injection via unsanitized passwords in subprocess calls (clickhouse_loader.py, mysql_dumper.py)

  bug
  Altinity/clickhouse-sink-connector#1293 · Filter by author minguyen9988 opened on May 17, 2026
  1

• [BUG-SEC-4] Credential logging + yaml.FullLoader arbitrary code execution in db/clickhouse.py

  bug
  Altinity/clickhouse-sink-connector#1291 · Filter by author minguyen9988 opened on May 17, 2026
  1

• [BUG-SEC-2] eval() code execution in Python checksum tools — fstr() allows arbitrary Python execution

  bug
  Altinity/clickhouse-sink-connector#1290 · Filter by author minguyen9988 opened on May 17, 2026
  1

• [BUG-SEC-1] SQL Injection in DebeziumOffsetStorage — String.format constructs SQL with user-controlled topic names

  bug
  Altinity/clickhouse-sink-connector#1288 · Filter by author minguyen9988 opened on May 17, 2026

• fix: disable.drop.truncate config is completely broken (check-before-set timing bug + unguarded CDC TRUNCATE path)

  Altinity/clickhouse-sink-connector#1287 · Filter by author minguyen9988 opened on May 17, 2026
  

• Binlog replication - High memory usage - Part 2

  dev-complete
  Altinity/clickhouse-sink-connector#1284 · Filter by author subkanthi opened on May 4, 2026 · 2.11.0
  

• [BUG-SCHEMA-5] Database Name Not Escaped in DDL Queries - Fails on Reserved Keywords

  Altinity/clickhouse-sink-connector#1264 · Filter by author minguyen9988 opened on Mar 8, 2026
  1

• [BUG-CONC-5] Check-Then-Act Race in getDbWriterForTable - Non-Atomic Map Operations

  Altinity/clickhouse-sink-connector#1263 · Filter by author minguyen9988 opened on Mar 8, 2026

• [BUG-TX-1] No Transaction Atomicity - Partial Batch Commits on Failure

  Altinity/clickhouse-sink-connector#1261 · Filter by author minguyen9988 opened on Mar 8, 2026

• [BUG-SCHEMA-1] ALTER TABLE DROP COLUMN Uses Wrong SQL Syntax and Is Never Called

  wontfix
  Altinity/clickhouse-sink-connector#1260 · Filter by author minguyen9988 opened on Mar 8, 2026 · 2.11.0
  1

  

• BUG: AtomicBoolean Misuse in PreparedStatementExecutor - Batch Error State Can Be Lost

  bugp2
  Altinity/clickhouse-sink-connector#1254 · Filter by author minguyen9988 opened on Mar 6, 2026

• BUG: Thread-Unsafe Static HashMap in HikariDbSource - Race Condition in Connection Pool Management

  bugp1
  Altinity/clickhouse-sink-connector#1253 · Filter by author minguyen9988 opened on Mar 6, 2026

• BUG: Resource Leak - JDBC Connections Never Closed in ClickHouseBatchWriter

  buglightweightp1
  Altinity/clickhouse-sink-connector#1252 · Filter by author minguyen9988 opened on Mar 6, 2026

• BUG: NULL Handling Crash in Non-Nullable ClickHouse Columns (PreparedStatementFieldMapper)

  bugdatatypehigh-priority
  Altinity/clickhouse-sink-connector#1250 · Filter by author minguyen9988 opened on Mar 6, 2026

• Template pattern for mysql/postgres checksum/dumper utilities

  Altinity/clickhouse-sink-connector#1248 · Filter by author subkanthi opened on Mar 5, 2026 · 2.11.0