Column filtering only happens with attr, which requires target and type.
Aug 31 09:39:21 ip-172-31-0-53 walshadow-run[2122]: 2026-08-31T09:39:21.569087Z INFO walshadow::control: control socket listening socket=/run/walshadow/control.sock
Aug 31 09:39:21 ip-172-31-0-53 walshadow-run[2122]: 2026-08-31T09:39:21.944085Z INFO walshadow: source identified sysid=7676135898416498086 timeline=2 xlogpos="3C/9E000458"
Aug 31 09:39:22 ip-172-31-0-53 walshadow-run[2122]: 2026-08-31T09:39:22.007175Z INFO walshadow: physical replication slot ready slot="walshadow"
Aug 31 09:39:22 ip-172-31-0-53 walshadow-run[2122]: 2026-08-31T09:39:22.020977Z INFO walshadow::backfill::backfill_bootstrap: catalog seed populated target="walshadow::backfill_bootstrap" relations=10
Aug 31 09:39:22 ip-172-31-0-53 walshadow-run[2122]: 2026-08-31T09:39:22.021425Z INFO walshadow::bootstrap: catalog map seeded relations=10 mode=Direct shadow_data_dir=/var/lib/walshadow/shadow-data
Aug 31 09:41:37 ip-172-31-0-53 walshadow-run[2122]: 2026-08-31T09:41:37.667492Z INFO walshadow::bootstrap: bootstrap insert tail started addr=t17tazyiti.us-west-2.aws.clickhouse-dev.com:9440 inserters=3
Aug 31 09:46:15 ip-172-31-0-53 walshadow-run[2122]: 2026-08-31T09:46:15.913242Z ERROR walshadow::pipeline: pipeline fatal error=inserter: clickhouse-c: clickhouse-c: Type: column layout does not match type Array(Nullable(String))
Aug 31 09:46:15 ip-172-31-0-53 walshadow-run[2122]: Error: bootstrap
Aug 31 09:46:15 ip-172-31-0-53 walshadow-run[2122]: Caused by:
Aug 31 09:46:15 ip-172-31-0-53 walshadow-run[2122]: bootstrap: inserter: clickhouse-c: clickhouse-c: Type: column layout does not match type Array(Nullable(String))
Column filtering only happens with attr, which requires target and type.