sync trace & short to clickhouse events

scripts/db/sql/clickhouse/create_shorturl_analytics.sql

@@ -10,8 +10,9 @@ DROP TABLE IF EXISTS shorturl_analytics.events;
 -- 创建新表
 CREATE TABLE IF NOT EXISTS shorturl_analytics.events (
   -- 事件基础信息
-  event_id UUID DEFAULT generateUUIDv4(),
-  event_time DateTime64(3) DEFAULT now64(),
+  event_id String,
+  event_time DateTime64(3),
+  -- 精确到毫秒的时间戳
   event_type String,
   -- click, redirect, conversion, error
   event_attributes String DEFAULT '{}',
@@ -25,7 +26,9 @@ CREATE TABLE IF NOT EXISTS shorturl_analytics.events (
   link_original_url String,
   link_attributes String DEFAULT '{}',
   link_created_at DateTime64(3),
+  -- 精确到毫秒的时间戳
   link_expires_at Nullable(DateTime64(3)),
+  -- 精确到毫秒的时间戳
   link_tags String DEFAULT '[]',
   -- Array of {id, name, attributes}
   -- 用户信息
@@ -68,6 +71,6 @@ CREATE TABLE IF NOT EXISTS shorturl_analytics.events (
   conversion_type String,
   -- 改为String类型
   conversion_value Float64 DEFAULT 0
-) ENGINE = MergeTree() PARTITION BY toYYYYMM(event_time)
+) ENGINE = MergeTree() PARTITION BY toYYYYMM(event_time) -- 直接使用DateTime64进行分区
 ORDER BY
   (event_time, link_id, event_id) SETTINGS index_granularity = 8192;