An event published when a connection pool creates a new connection连接池创建新连接时发布的事件
The address (host/port pair) of the pool池的地址（主机/端口对）
A monotonically increasing, per-pool id for the newly created connection新创建的连接的每个池id单调递增
A timestamp when the event was created创建事件时的时间戳
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An event published when a connection pool creates a new connection连接池创建新连接时发布的事件