Ptt 大爆卦 | 陣列長度c++ - 前往 https://clickhouse.com/docs/en/sql-reference/functions/array-functions

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Array Functions | ClickHouse Docs

The query SELECT length(arr) FROM table transforms to SELECT arr.size0 FROM TABLE . Alias: OCTET_LENGTH. emptyArrayUInt8, emptyArrayUInt16, emptyArrayUInt32, ...

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