Debug log not shown in v2.29.4 with debug=1 in DSN

Author: RuprehtCreated Apr 13, 2026Updated Apr 16, 2026

Description In version 2.29.4, debug logs are no longer output when connecting to ClickHouse with the debug=1 parameter in the DSN.

Reference: https://github.com/ClickHouse/clickhouse-go?tab=readme-ov-file#dsn

Version: 2.29.4
Database: ClickHouse
Operating System: Linux amd64

Steps To Reproduce

bash

export DATABASE_URL="clickhouse://default:[email protected]:9440/test?secure=1&skip_verify=1&debug=1"
export DBMATE_MIGRATIONS_DIR=test
export DBMATE_NO_DUMP_SCHEMA=true
export DBMATE_STRICT=true
export DBMATE_VERBOSE=false
export DBMATE_WAIT_TIMEOUT=5m0s
export DBMATE_WAIT=false

docker run -ti --rm \
  -e DATABASE_URL \
  -e DBMATE_NO_DUMP_SCHEMA \
  -e DBMATE_VERBOSE \
  -e DBMATE_STRICT \
  -e DBMATE_WAIT \
  -e DBMATE_WAIT_TIMEOUT=10m0s \
  -e DBMATE_MIGRATIONS_DIR \
  "${TAG}" up

Expected Behavior

Log from v2.29.3

bash

Connect for up
[clickhouse][172.17.0.1:9440][id=1][handshake] ->  0.0.0
[clickhouse][172.17.0.1:9440][id=1][handshake] <- ClickHouse (localhost.local) server version 26.3.3 revision 54483 (timezone UTC)
[clickhouse][172.17.0.1:9440][id=1][send query] compression="none" SELECT 1 FROM system.databases where name = 'test'
[clickhouse][172.17.0.1:9440][id=1][send data] compression="none"
[clickhouse][172.17.0.1:9440][id=1][read data] compression="none". block: columns=1, rows=0
[clickhouse][172.17.0.1:9440][id=1][profile info] rows=0, bytes=0, blocks=0, rows before limit=0, applied limit=false, calculated rows before limit=true
[clickhouse][172.17.0.1:9440][id=1][progress] rows=4, bytes=81, total rows=0, wrote rows=0 wrote bytes=0 elapsed=1.00675ms
[clickhouse][172.17.0.1:9440][id=1][progress] rows=4, bytes=81, total rows=0, wrote rows=0 wrote bytes=0 elapsed=1.00675ms
[clickhouse][172.17.0.1:9440][id=1][read data] compression="none". block: columns=6, rows=22
[clickhouse][172.17.0.1:9440][id=1][profile events] rows=22
[clickhouse][172.17.0.1:9440][id=1][profile events] skipping scan
[clickhouse][172.17.0.1:9440][id=1][read data] compression="none". block: columns=0, rows=0
[clickhouse][172.17.0.1:9440][id=1][progress] rows=0, bytes=0, total rows=0, wrote rows=0 wrote bytes=0 elapsed=100.208µs
[clickhouse][172.17.0.1:9440][id=1][progress] rows=0, bytes=0, total rows=0, wrote rows=0 wrote bytes=0 elapsed=100.208µs
[clickhouse][172.17.0.1:9440][id=1][end of stream]

Source: amacneil/dbmate

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