CREATE TABLE IF NOT EXISTS agent_metrics (
    tenant_id          LowCardinality(String) DEFAULT 'default',
    collected_at       DateTime64(3),
    agent_id           LowCardinality(String),
    metric_name        LowCardinality(String),
    metric_value       Float64,
    tags               Map(String, String) DEFAULT map(),
    server_received_at DateTime64(3) DEFAULT now64(3)
)
ENGINE = MergeTree()
PARTITION BY (tenant_id, toYYYYMM(collected_at))
ORDER BY (tenant_id, agent_id, metric_name, collected_at)
TTL collected_at + INTERVAL 365 DAY DELETE
SETTINGS index_granularity = 8192;