system.graphite_retentions
Contains information about parameters graphite_rollup which are used in tables with *GraphiteMergeTree engines.
Columns:
config_name(String) — graphite_rollup parameter name.rule_type(String) — The rule type. Possible values: RuleTypeAll = 0 - default, with regex, compatible with old scheme; RuleTypePlain = 1 - plain metrics, with regex, compatible with old scheme; RuleTypeTagged = 2 - tagged metrics, with regex, compatible with old scheme; RuleTypeTagList = 3 - tagged metrics, with regex (converted to RuleTypeTagged from string like 'retention=10min ; env=(staging|prod)')regexp(String) — A pattern for the metric name.function(String) — The name of the aggregating function.age(UInt64) — The minimum age of the data in seconds.precision(UInt64) — How precisely to define the age of the data in seconds.priority(UInt16) — Pattern priority.is_default(UInt8) — Whether the pattern is the default.Tables.database(Array(String)) — Array of names of database tables that use theconfig_nameparameter.Tables.table(Array(String)) — Array of table names that use theconfig_nameparameter.