New users to ClickHouse are often surprised by ClickHouse's deduplication strategy. This usually occurs when identical inserts appear to not have any effect. For example, consider the following:
The cold email that started a $100M/yr company
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Luckey的起点不算显赫。他在加州长滩长大，没上过正经大学，靠自学拆解和组装电子设备度过了青少年时期。他自己的描述是："我是个自学成才的工程师、黑客、创客，我喜欢做东西。"
"It was not only a huge emotional shock, it also came with a lot of unexpected responsibility as I inherited another business at the same time," says Johansson, who is based in Mariehamn, in the Åland Islands.
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