atoti_directquery_clickhouse.ConnectionConfig#
- final class atoti_directquery_clickhouse.ConnectionConfig#
Config to connect to a ClickHouse database.
See also
atoti_directquery_snowflake.ConnectionConfig
for an example.- column_clustered_queries: 'all' | 'feeding' = 'feeding'#
Control which queries will use clustering columns.
- feeding_query_timeout: Duration = datetime.timedelta(seconds=3600)#
Timeout for queries performed on the external database during feeding phases.
The feeding phases are:
the initial load to feed
aggregate_providers
andhierarchies
;the refresh operations.
- lookup_mode: 'allow' | 'warn' | 'deny' = 'warn'#
Whether lookup queries on the external database are allowed.
Lookup can be very slow and expensive as the database may not enforce primary keys.
- max_sub_queries: Annotated[int, Field(gt=0)] = 500#
Maximum number of sub queries performed when splitting a query into multi-step queries.
- password: str | None = None#
The password to connect to the database.
Passing it in this separate attribute prevents it from being logged alongside the connection string.
If
None
, a password is expected to be present inurl
.
- query_timeout: Duration = datetime.timedelta(seconds=300)#
Timeout for queries performed on the external database outside feeding phases.