- connections: params (JSON) merged into connection URL query string, applied
to both sling env.yaml and atlas URLs; user's foreign_key_checks overrides
the default =0
- pipelines: env map written to replication yaml top-level env:
- UI: key=value textarea in connection dialog and pipeline form (new/edit)
- docs: TiDB Error 8048 (SERIALIZABLE) troubleshooting — set
tidb_skip_isolation_level_check=1 as a connection param
tigerenwork