SCHEMA >
    `site_uuid` LowCardinality(String),
    `timestamp` DateTime,
    `action` LowCardinality(String),
    `version` LowCardinality(String),
    `session_id` String,
    `member_uuid` String,
    `member_status` String,
    `post_uuid` String,
    `post_type` String,
    `location` String,
    `source` String,
    `pathname` String,
    `href` String,
    `device` String,
    `os` String,
    `browser` String

ENGINE "MergeTree"
ENGINE_PARTITION_KEY "toYYYYMM(timestamp)"
ENGINE_SORTING_KEY "site_uuid, timestamp, session_id"