example create tabe DDL

CREATE TABLE default.watch_your_lan( ts DateTime64(3, 'UTC'), ip IPv4, iface LowCardinality(String), name LowCardinality(String), mac FixedString(17), known UInt8 ) ENGINE = MergeTree PARTITION BY toYYYYMM(ts) ORDER BY (ts, ip) SETTINGS index_granularity = 8192;