Packet for query is too large （mysql數據寫入數據過大問題）

Packet for query is too large (4259580 > 4194304). You can change this value on the server by setting the max_allowed_packet' variable. 當出現這種異常的時候，代表着寫入操作的數據超過了mysql限定的單次寫入操作的數據大小上限。 上面異常的提示You can ch

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