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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_providersandhierarchies; - 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. IfNone, a password is expected to be present in url.
query_timeout : Duration = datetime.timedelta(seconds=300)
Timeout for queries performed on the external database outside feeding phases.url : str
The connection string. The pattern is:(clickhouse|ch):(https|http|...)://login:password@host:port/database?prop=value.
For example: "clickhouse:https://user:password@localhost:8123/mydb".
When a part is missing, its default value will be used.